Liebherr R984 1:14

[tessen]

Hi to everybody, my name is Adolfo from the south of Spain, I would like to share with you my machine construction, this project is a big project in those post i show the works of years working, is tired but it´s funny :)

i have not finish the 3D model yet but i want to machining something! ok, i´ll post a lot of photo and video,as note, and all my major machines are DIY
ok, here we go!

the first piece is a link of the chain

http://img.photobucket.com/albums/v219/tessen/984R/eslabon984_zpsa4deee80.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/CHAIN2_zpsd706a053.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/CHAIN1_zpseef8e814.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/CHAIN4_zps76111c8a.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/CHAIN3_zps1654260d.jpg~original

i have to machining 196 links, a preview model
http://img.photobucket.com/albums/v219/tessen/984R/cadena_zpsa5aa587d.jpg~original

a video of the machining (right link)
http://www.youtube.com/watch?v=7DmqKonu2IE&feature=youtu.be
https://www.youtube.com/watch?v=7Rv3OzudaCM&feature=em-upload_owner

and the left link
https://www.youtube.com/watch?v=P0JbwqnjaF8&feature=youtu.be

http://img.photobucket.com/albums/v219/tessen/984R/CH2_zps45cb0723.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/CH1_zps78d8bb72.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/Photo23_zpsa72ed599.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/Photo17_zpsf453cc42.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/Photo11_zpsaef14000.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/Photo6_zps5cc67ebd.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/Photo2_zps208f9f1c.jpg~original

the traction wheel:
i use a cycloid gear inside the wheel cube with a relation on 1:100 and i turn this shaft using a timing pulley with a 1:6 relation --> final relation 1:600
http://img.photobucket.com/albums/v219/tessen/REDUCTORruedatractora_zpsbe1633fa.jpg~original

sectional cut
http://img.photobucket.com/albums/v219/tessen/984R/REDUCTORruedatractoraseccion_zpsd3d71b78.jpg~origi nal
http://img.photobucket.com/albums/v219/tessen/984R/red3_zps25063954.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/red1_zps52e0cd57.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/red2_zpsec2677af.jpg~original

videos
http://www.youtube.com/watch?v=vtx9vAy3h9I
http://www.youtube.com/watch?v=jrk4c-XzaZA


http://img.photobucket.com/albums/v219/tessen/984R/TW1_zpsdaa07423.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/TW2_zpse91c0982.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/TW4_zps06016780.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/TW3_zps4fed4163.jpg~original

ok, this is the current status , i need to make the pads for the chain, at the first place i thought to machining it, but i have to rotate them in the mill many times, too boring, i had to learn another technique, lost wax casting

the first cast (bronze)
http://img.photobucket.com/albums/v219/tessen/984R/th_cp1_zpsfd0e4635.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fun14_zps034437eb.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fun11_zps9763a84c.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/tj1_zps2383a9e1.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fun13_zpsea514322.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fun12_zpsc56b2eb4.jpg~original

[tessen]

http://img.photobucket.com/albums/v219/tessen/984R/tj5_zps25bcafff.jpg~original (obviously these are not the final screws)
http://img.photobucket.com/albums/v219/tessen/984R/tj6_zps8f44da6e.jpg~original

the second cast (brass)
http://img.photobucket.com/albums/v219/tessen/984R/fund23_zps2af7b144.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fund231_zps255f062b.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/5_zpse53d812f.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/6_zps9213d684.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/1_zpsb92ecf4b.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/4_zps25905f97.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fund224_zps4ff06a32.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fund210_zpsd3bdf6d0.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fund29_zps73d6c040.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fund238_zps01d6189d.jpg~original
http://img.photobucket.com/albums/v219/tessen/984R/fund239_zpsfc83abf8.jpg~original
the third cast (brass)

the third cast was better, i made the pads i need and i do a test cast, to see that this technique is able

the wax test cast
http://img.photobucket.com/albums/v219/tessen/984R/mic330_zpse274c7a7.jpg~original

the final cast
http://img.photobucket.com/albums/v219/tessen/984R/mic338_zpsb3e235ac.jpg~original

my pads cast
http://img.photobucket.com/albums/v219/tessen/984R/mic352_zps8ef76a32.jpg~original

http://img.photobucket.com/albums/v219/tessen/984R/mic348_zps4039f7a2.jpg~original

[tessen]

Well, these are the most important pieces, now it make a dotted and drill (which has no mystery), one thing that if it could be funny / curious, are the nuts with hex screws that hold the pads to the chain, finally i did it with my cnc router, the pieces were made in brass, nuts are threaded to M2 and measure 3x3mm, totaling 405 nuts, machined with a 1.5mm drill (the champion of end mills)

http://img.photobucket.com/albums/v219/tessen/984R/ca3_zpsdb4343c0.jpg~original

http://img.photobucket.com/albums/v219/tessen/984R/ca1_zpsd2195639.jpg~original

http://img.photobucket.com/albums/v219/tessen/984R/ca4_zpsf08e2bb0.jpg~original

a little video of the machining
https://www.youtube.com/watch?v=NHkC2UHnynI&feature=youtu.be

and finally .. I could assemble the track

http://img.photobucket.com/albums/v219/tessen/984R/ca5_zps0ead9042.jpg~original

http://img.photobucket.com/albums/v219/tessen/984R/ca6_zps33789cc7.jpg~original

http://img.photobucket.com/albums/v219/tessen/984R/ca7_zpse2d8eeb0.jpg~original

more photos, this is the time of the hubcaps for the traction wheel, made of aluminum
the master piece is made in 2 pieces, one milling and the other are made using laser engraving
http://img.photobucket.com/albums/v219/tessen/984R/tapac1_zps92bff130.jpg~original

after that, both are join
http://img.photobucket.com/albums/v219/tessen/984R/th_tapac2_zps3bc4fa33.jpg~original

the mold and the wax copies
http://img.photobucket.com/albums/v219/tessen/984R/tapac3_zps6c812fc9.jpg~original

the result of the casting
http://img.photobucket.com/albums/v219/tessen/984R/tapac5_zps0fca426d.jpg~original

http://img.photobucket.com/albums/v219/tessen/984R/tapac8_zps692d91a2.jpg~original

http://img.photobucket.com/albums/v219/tessen/984R/tapac9_zps4502d58e.jpg~original

salu2!

[K-Man]

Fantastic work Tessen, Most of us can only dream making stuff this good.

[dozerbuilder]

Wow, beautiful work!. Please continue to show us the progress.

[Lil Giants]

Is the advantage of a cycloid reduction a thinner package than a planetary? Watching the video of you spinning it fast with a drill, it looks like there may be some vibration to it... :thinking:

[tessen]

thanks for comment
i progress too slowly, now i´m making the hydraulic valve block i hope to share the test soon

Lil Giants: cycloidal reduction have many advantages, some are:

- if you turn the output axis, the input axis can´t be move (brake system)
- there are more surface in contac--> can manage bigger loads
- the output axis have a big diameter

in the video there are 2 stages of 1:10 (total 1:100) but this is a first test, now i have 2 stages of 1:15 (total 1:225) in the same place (and could increase the final relation) to obtain this is complex with spur gears (but i don't say you that it can't be done)

on the negative side this gearbox are difficult to machining, nevertheless i´ll i use it on the chain and in the turret turn

regards

[RCKiwi]

Very nice work so far Adolfo! Is your CNC mill with 4th axis home made? I bet a clever bloke like you could put a bar feed on it and go lights out? Or has it already got one? ;) Your work on the cycloidal reduction is very interesting! Please keep posting and sharing your progress with us :cool::)

[tessen]

thanks RCKiwi
yes, all my machines are diy at this moment i have built (all are in my youtube channel)
- laser-plasma cutter
- router with 4 axis
- cnc lathe
- wire EDM cutter
- SLA 3D printer
- fellows gear shaper
- ...
the 4 axis not have a pull bar due to the reduction i had used, the gearhead not have a through bore, for a feeder i need this and automatic lathe chuck, if i have to make thousand of pieces from a rod, maybe i would think about it ;)

i hope posting soon with a little test..

regards

[Izzy]

Wow, you have many skills.
Tracks and drives are awesome.

[tessen]

more advanced, the lower structure, all stainless steel 3 mm and 1.5mm

http://img.photobucket.com/albums/v219/tessen/984R/subestructura/th_IMG20160419201032%20Copy_zps3pkohh2h.jpg~origin al
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/th_IMG20160423182831%20Copy_zpsr7noy8yl.jpg~origin al (http://smg.photobucket.com/user/tessen/media/984R/subestructura/IMG20160423182831%20Copy_zpsr7noy8yl.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/th_IMG20160424185224%20Copy_zpsacmmdi5m.jpg~origin al (http://smg.photobucket.com/user/tessen/media/984R/subestructura/IMG20160424185224%20Copy_zpsacmmdi5m.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/th_IMG20160425142613%20Copy_zpswtujqtdz.jpg~origin al (http://smg.photobucket.com/user/tessen/media/984R/subestructura/IMG20160425142613%20Copy_zpswtujqtdz.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/th_IMG20160423194105%20Copy_zpsgptakajm.jpg~origin al (http://smg.photobucket.com/user/tessen/media/984R/subestructura/IMG20160423194105%20Copy_zpsgptakajm.jpg.html)

http://img.photobucket.com/albums/v219/tessen/984R/subestructura/th_IMG20160424190455%20Copy_zpsig3yiqyq.jpg~origin al (http://smg.photobucket.com/user/tessen/media/984R/subestructura/IMG20160424190455%20Copy_zpsig3yiqyq.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/th_IMG20160419200852%20Copy_zpsep0pjlbj.jpg~origin al (http://smg.photobucket.com/user/tessen/media/984R/subestructura/IMG20160419200852%20Copy_zpsep0pjlbj.jpg.html)

the following photos correspond to the lost wax casting of pieces for support and guides rollers on tracks

http://img.photobucket.com/albums/v219/tessen/984R/MICROFUSION/soportes%20orugas/th_fundicion%2001%20Copy_zpsbtfawsc4.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/MICROFUSION/soportes%20orugas/fundicion%2001%20Copy_zpsbtfawsc4.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/MICROFUSION/soportes%20orugas/th_fundicion%2002%20Copy_zpsz3ea5xg8.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/MICROFUSION/soportes%20orugas/fundicion%2002%20Copy_zpsz3ea5xg8.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/MICROFUSION/soportes%20orugas/th_fus%20IMG20160427115357%20Copy_zpsxiwsj2qt.jpg~ original (http://smg.photobucket.com/user/tessen/media/984R/MICROFUSION/soportes%20orugas/fus%20IMG20160427115357%20Copy_zpsxiwsj2qt.jpg.htm l)
http://img.photobucket.com/albums/v219/tessen/984R/MICROFUSION/soportes%20orugas/th_fus%20IMG20160427115427%20Copy_zpsfqwgojvn.jpg~ original (http://smg.photobucket.com/user/tessen/media/984R/MICROFUSION/soportes%20orugas/fus%20IMG20160427115427%20Copy_zpsfqwgojvn.jpg.htm l)
http://img.photobucket.com/albums/v219/tessen/984R/MICROFUSION/soportes%20orugas/th_fus%20IMG20160501135120%20Copy_zpsyevbu3vu.jpg~ original (http://smg.photobucket.com/user/tessen/media/984R/MICROFUSION/soportes%20orugas/fus%20IMG20160501135120%20Copy_zpsyevbu3vu.jpg.htm l)

and a pair of test of my future valves (for the time, prototypes)
https://www.youtube.com/watch?v=ACX_2GJdTNQ
https://www.youtube.com/watch?v=-big2h1tJiE

salu2! (best regards)

[sparkycuda]

Amazing workmanship and detail!

Ken

[tessen]

thanks sparkycuda

more advances
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%2003%20Copy_zpsssrxyopq.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%2003%20Copy_zpsssrxyopq.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%2024%20Copy_zpsizwg3xhp.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%2024%20Copy_zpsizwg3xhp.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%20lum%2007%20Copy_zpspk3fwsd7.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%20lum%2007%20Copy_zpspk3fwsd7.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%2020%20Copy_zps380nqaib.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%2020%20Copy_zps380nqaib.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%2017%20Copy_zpsurnj4cbj.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%2017%20Copy_zpsurnj4cbj.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%2015%20Copy_zpsphlitmdz.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%2015%20Copy_zpsphlitmdz.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%20lum%2001%20Copy_zps2e8lrhpy.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%20lum%2001%20Copy_zps2e8lrhpy.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%2012%20Copy_zpsqubgcin7.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%2012%20Copy_zpsqubgcin7.jpg.html)

http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%2005%20Copy_zpsq81fxbpg.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%2005%20Copy_zpsq81fxbpg.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/subestructura/libr%2009%20Copy_zpsiqhwnhxk.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/subestructura/libr%2009%20Copy_zpsiqhwnhxk.jpg.html)
http://img.photobucket.com/albums/v219/tessen/984R/chan%2001%20Copy_zpsgcx9zgeo.jpg~original (http://smg.photobucket.com/user/tessen/media/984R/chan%2001%20Copy_zpsgcx9zgeo.jpg.html)

[tessen]

Hello everyone, the machine is almost finished, here I leave the rest of the development

the last photos and one test video
https://i.imgur.com/hRBJnpV.jpg
https://i.imgur.com/dnMPxtv.jpg
https://i.imgur.com/aCIfSJm.jpg
https://i.imgur.com/QLYuxS9.jpg

https://youtu.be/ZSXQkJDTfbQ


https://i.imgur.com/Gejjkig.jpg
https://i.imgur.com/7lj2xPZ.jpg
https://i.imgur.com/0jiAEjw.jpg
https://i.imgur.com/9QnQSzZ.jpg
https://i.imgur.com/rpnLr2P.jpg
https://i.imgur.com/IokRF0e.jpg
https://i.imgur.com/UmRbnJU.jpg


https://www.youtube.com/watch?v=DQ55BgwHt-Q

regards

[tessen]

this is the counterweight of the machine, this is only the model 3d printed to obtain the final part from casting
The first thing to decide is the material, in this case I have chosen to make the counterweight, lead, by weight it would be totally out of scale, but I want to give a certain touch of "forcefulness" to the machine, besides, to remove there is always time
https://i.imgur.com/2Ez2YKE.jpg
next part, letters and details, at this time i thought to use 3d printed part, but sure i have troubles in cast, no way, plan B
https://i.imgur.com/1zw2DoY.jpg

the cast
https://i.imgur.com/nf2WcYH.jpg
https://i.imgur.com/QG5lFYZ.jpg
https://i.imgur.com/LcALpu6.jpg
https://i.imgur.com/a5uavPa.jpg
https://i.imgur.com/2G63Abc.jpg
https://i.imgur.com/nFksgHT.jpg
https://i.imgur.com/HOA3yRG.jpg
https://i.imgur.com/VxXVlC7.jpg
I have to pause.. a little problem
https://i.imgur.com/61uxsP0.jpg
https://i.imgur.com/OANBgUX.jpg
a rebob (i don´t know if is the correct word, a superficial fail) i have to repair, first i have to prepare the surface and after use a epoxy putty to fill the fail and and a lot of sanding by hand...
https://i.imgur.com/IPxqpGp.jpg
... or not, better to use the machines
https://i.imgur.com/xUmSW55.jpg
https://i.imgur.com/mbohBOU.jpg
https://i.imgur.com/BMonE14.jpg

Now time for the details, i have use my diy mill and wire edm
https://i.imgur.com/6qZLSyr.jpg
https://i.imgur.com/BZH0p5B.jpg
https://i.imgur.com/zQ36Qlx.jpg
https://i.imgur.com/aHd6ndz.jpg
https://i.imgur.com/hJkewfn.jpg
https://i.imgur.com/ECe5gu8.jpg
https://i.imgur.com/yYkqbha.jpg
https://i.imgur.com/HvgfKA4.jpg
https://i.imgur.com/Di6mMOW.jpg

the final look has to be similar like this
https://i.imgur.com/6tU92cv.jpg


a pair of video
https://www.youtube.com/watch?v=BmlNWxqZb-U
https://www.youtube.com/watch?v=pkb8AXyLN8I&t

i have make an useful (util,utile?) to put the pieces in place
https://i.imgur.com/x6jTc5B.jpg
https://i.imgur.com/lVOSR0h.jpg

[tessen]

the bucket, this is a pretty piece, made of steel sheets cut with laser https://i.imgur.com/F5zq6rn.jpg
https://i.imgur.com/2wM5Yt8.jpg
https://i.imgur.com/b5iPFgc.jpg
https://i.imgur.com/ZvnA3x2.jpg
https://i.imgur.com/FDElu16.jpg
https://i.imgur.com/zdgU8pk.jpg
https://i.imgur.com/Fstp8ns.jpg
https://i.imgur.com/Vd0Xu5p.jpg
https://i.imgur.com/Eypupo2.jpg
https://i.imgur.com/IUy17xs.jpg
https://i.imgur.com/dBy8Od6.jpg
https://i.imgur.com/dqM8ho0.jpg
https://i.imgur.com/GEyz8yL.jpg
on the inside, it measures 185mm


ok, next phase
i will do the "tooth" and "tooth holder" with lost wax process, but using 3D printer technique (ussing a diy 3D printer), first time, to make the 3D print model (i use different types of resin)
https://i.imgur.com/vLxZC83.jpg
https://i.imgur.com/XhXWVPy.jpg
https://i.imgur.com/naP07TT.jpg
https://i.imgur.com/LtWjnzT.jpg
https://i.imgur.com/wLEyT5g.jpg
https://i.imgur.com/mwclA5J.jpg
https://i.imgur.com/bYdvRjY.jpg
https://i.imgur.com/CGSf1L3.jpg
https://i.imgur.com/wDoaYLr.jpg

now i use those part to make silicone models to obtain wax parts
https://i.imgur.com/lY5bDxL.jpg
https://i.imgur.com/935XFz1.jpg
https://i.imgur.com/K1P6xki.jpg
https://i.imgur.com/mgXVb5S.jpg

[tessen]

(how easy and fast seen like this hehe)
https://i.imgur.com/8YZDEje.jpg
https://i.imgur.com/i3PWmJZ.jpg
https://i.imgur.com/CiaGc97.jpg
https://i.imgur.com/Ku8JagC.jpg
https://i.imgur.com/vjQFDvq.jpg

the pieces welded by brazing
https://i.imgur.com/k2KBCqc.jpg
https://i.imgur.com/x99bc7k.jpg
https://i.imgur.com/pmyWrL7.jpg
https://i.imgur.com/kZvQJkM.jpg
https://i.imgur.com/v2GRvFN.jpg
https://i.imgur.com/UEIlu99.jpg

and almost finished (yet not, I have to add minor details)
https://i.imgur.com/RIDcpBq.jpg
https://i.imgur.com/mEkdsBZ.jpg
https://i.imgur.com/EixpgMe.jpg

another piece, the arm
are made of steel ribs cut with laser and welded together with MIG
https://i.imgur.com/uIzXhS0.jpg
https://i.imgur.com/oR8fj4f.jpg
https://i.imgur.com/vO2bH4E.jpg

the previous piece need on both sides spacers, made of brass and using sand casting technique, those part are glued with epoxy to the main body, but it´s not important, once time in place, can´t move
https://i.imgur.com/uJgSwYf.jpg
https://i.imgur.com/sHFUFFs.jpg
https://i.imgur.com/KMkeqQV.jpg
https://i.imgur.com/Bm2wifd.jpg
https://i.imgur.com/l8H97ki.jpg

and after machining
https://i.imgur.com/noP6JCj.jpg
https://i.imgur.com/aA0TSHy.jpg
https://i.imgur.com/nntrhNR.jpg
https://i.imgur.com/wu8TRd4.jpg

[tessen]

now the part that hold the bucket hydraulic piston (made of brass) in the arm
https://i.imgur.com/qd2afgC.jpg
https://i.imgur.com/KDA0vRA.jpg
https://i.imgur.com/8TxGF7u.jpg
https://i.imgur.com/lktbnMf.jpg
https://i.imgur.com/MaqrUXs.jpg
https://i.imgur.com/RXO5JsV.jpg
https://i.imgur.com/OjyXrj5.jpg

and all the pieces that form the arm
https://i.imgur.com/2h1h7Uk.jpg

this part is a rock protector in the lower side of the arm
https://i.imgur.com/EBfWxDm.jpg
https://i.imgur.com/zoLWbI6.jpg
https://i.imgur.com/gY8pLNT.jpg
https://i.imgur.com/xXfeOVn.jpg
and the final piece (almost)
https://i.imgur.com/FLaXBwL.jpg

These parts are those that articulate the bucket with the arm,
This piece is made of brass, joins the piston with the bucket, some photos of some parts of the machining
https://i.imgur.com/LE52Pb8.jpg
https://i.imgur.com/OkyVnie.jpg
https://i.imgur.com/pb5nTWQ.jpg
https://i.imgur.com/2WNiTd0.jpg
https://i.imgur.com/mhtjSiz.jpg
https://i.imgur.com/CmiYa0G.jpg

and these 2 parts make the bucket pivot on the arm, they are made of steel (I do not like to work with this engine ... it is a factory to produce pins)
https://i.imgur.com/rrI5pQP.jpg
https://i.imgur.com/fr7V7Ze.jpg
https://i.imgur.com/pFboel2.jpg
https://i.imgur.com/0WpIWjU.jpg
https://i.imgur.com/qGaxBUM.jpg
https://i.imgur.com/icvnxm1.jpg
https://i.imgur.com/C2T29Hq.jpg
https://i.imgur.com/tb2e7tn.jpg

and this a presentation of how it´s works
https://i.imgur.com/8mm6Xq9.jpg
https://i.imgur.com/MCgG27j.jpg

regards

[tessen]

now i show some minor details
https://i.imgur.com/wIqpsjM.jpg
https://i.imgur.com/5xn4ynT.jpg
https://i.imgur.com/do8FskS.jpg
https://i.imgur.com/uzeif6r.jpg

this is the original stairs on the lower superstructure
https://i.imgur.com/L0b29VO.jpg

and here my pieces to scale
https://i.imgur.com/h00kS5f.jpg
https://i.imgur.com/lkqrv72.jpg
https://i.imgur.com/v4vfY6q.jpg
https://i.imgur.com/GgPZ9cQ.jpg
https://i.imgur.com/OPvSsii.jpg
https://i.imgur.com/zedbUAX.jpg

the turret turning system

https://i.imgur.com/3mfrSfo.jpg
https://i.imgur.com/EQb4t6a.jpg
https://i.imgur.com/uAtzYiX.jpg
https://i.imgur.com/Z9vhbtS.jpg
https://i.imgur.com/vLRbS2e.jpg
https://i.imgur.com/NtfZrZg.jpg
https://i.imgur.com/RhTw5KZ.jpg
https://i.imgur.com/rYeUiII.jpg
https://i.imgur.com/p8e4mzQ.jpg
https://i.imgur.com/NjRH0S6.jpg
https://i.imgur.com/xjtYoYw.jpg
https://i.imgur.com/LweqbT0.jpg
https://i.imgur.com/4gm4AS9.jpg
https://i.imgur.com/Z2nqjxt.jpg
https://i.imgur.com/RrWocRD.jpg
a little video of the motor and the gearhead

https://youtu.be/6APESpE42aY

and the rest of gearhead
https://i.imgur.com/fwSkLqw.jpg
https://i.imgur.com/b7tf08f.jpg

and a video to show how it´s works
https://youtu.be/oIVaSKgdFJg

[tessen]

base for the upper structure
This part is the one that supports the whole upper set, to it is taken both the arm and the counterweight, the base is a 6mm of steel sheet and the most important parts are either groove joints or threaded, photos:

https://i.imgur.com/LZ7CiqS.jpg
https://i.imgur.com/HFFBMAb.jpg
https://i.imgur.com/5bhPRFg.jpg
https://i.imgur.com/AKzA8hE.jpg

the boom:
It is composed of several pieces, the main structure is made by joining steel sheets of different thicknesses, with them I create an inside skeleton, the pivot points are solid pieces, to complete it i will fill the interior with epoxy and filler to give more consistence , Photos:


https://i.imgur.com/LjB2ldP.jpg
https://i.imgur.com/IBcKlZq.jpg
https://i.imgur.com/eDt417f.jpg
https://i.imgur.com/XDuro0f.jpg
https://i.imgur.com/yBYfSwq.jpg
https://i.imgur.com/3p2aEgf.jpg
https://i.imgur.com/d67NhQo.jpg
https://i.imgur.com/HqXzjcm.jpg


reinforcements at the tip of the arm
https://i.imgur.com/VZWDNbh.jpg
https://i.imgur.com/BfdvaP1.jpg


and the look of the set presented
https://i.imgur.com/Njxe6aN.jpg


the following is the joining of the hydraulics ram in the boom, I use a piece of brass and I will mechanize it to shape
https://i.imgur.com/C2iKs3m.jpg
https://i.imgur.com/RjqLD9D.jpg
https://i.imgur.com/b2mgG0R.jpg


this is the set presented
https://i.imgur.com/Q4EQ8jr.jpg
https://i.imgur.com/1j656iS.jpg


The next piece makes the pivot point of the pistons that move the arm, this piece is taken out of casting brass
https://i.imgur.com/Lnu5lbv.jpg


Another thing I have done is accentuate the detail of the welds on both the sides of the machine, using copper wire and solder
https://i.imgur.com/qK7RGOf.jpg
https://i.imgur.com/T7WPP6l.jpg
https://i.imgur.com/Y0DJdj4.jpg

and one of the last steps would be to fill as previously mentioned with resin and filler to give more rigidity to the set, filling gaps and fixing some internal parts
https://i.imgur.com/gCsXE3P.jpg


and here once the resin dries
https://i.imgur.com/wTTmgbT.jpg
https://i.imgur.com/KhMG487.jpg

[tessen]

thanks, i don't know what part you refer, but all the lower superstructure weighs about 15 Kg

the last photos and one test video
https://i.imgur.com/hRBJnpV.jpg
https://i.imgur.com/dnMPxtv.jpg
https://i.imgur.com/aCIfSJm.jpg
https://i.imgur.com/QLYuxS9.jpg

https://youtu.be/ZSXQkJDTfbQ


https://i.imgur.com/Gejjkig.jpg
https://i.imgur.com/7lj2xPZ.jpg
https://i.imgur.com/0jiAEjw.jpg
https://i.imgur.com/9QnQSzZ.jpg
https://i.imgur.com/rpnLr2P.jpg
https://i.imgur.com/IokRF0e.jpg
https://i.imgur.com/UmRbnJU.jpg


https://www.youtube.com/watch?v=DQ55BgwHt-Q

this is the counterweight of the machine, this is only the model 3d printed to obtain the final part from casting
The first thing to decide is the material, in this case I have chosen to make the counterweight, lead, by weight it would be totally out of scale, but I want to give a certain touch of "forcefulness" to the machine, besides, to remove there is always time
https://i.imgur.com/2Ez2YKE.jpg
next part, letters and details, at this time i thought to use 3d printed part, but sure i have troubles in cast, no way, plan B
https://i.imgur.com/1zw2DoY.jpg

the cast
https://i.imgur.com/nf2WcYH.jpg
https://i.imgur.com/QG5lFYZ.jpg
https://i.imgur.com/LcALpu6.jpg
https://i.imgur.com/a5uavPa.jpg
https://i.imgur.com/2G63Abc.jpg
https://i.imgur.com/nFksgHT.jpg
https://i.imgur.com/HOA3yRG.jpg
https://i.imgur.com/VxXVlC7.jpg
I have to pause.. a little problem
https://i.imgur.com/61uxsP0.jpg
https://i.imgur.com/OANBgUX.jpg
a rebob (i don´t know if is the correct word, a superficial fail) i have to repair, first i have to prepare the surface and after use a epoxy putty to fill the fail and and a lot of sanding by hand...
https://i.imgur.com/IPxqpGp.jpg
... or not, better to use the machines
https://i.imgur.com/xUmSW55.jpg
https://i.imgur.com/mbohBOU.jpg
https://i.imgur.com/BMonE14.jpg

[tessen]

Now time for the details, i have use my diy mill and wire edm
https://i.imgur.com/6qZLSyr.jpg
https://i.imgur.com/BZH0p5B.jpg
https://i.imgur.com/zQ36Qlx.jpg
https://i.imgur.com/aHd6ndz.jpg
https://i.imgur.com/hJkewfn.jpg
https://i.imgur.com/ECe5gu8.jpg
https://i.imgur.com/yYkqbha.jpg
https://i.imgur.com/HvgfKA4.jpg
https://i.imgur.com/Di6mMOW.jpg

the final look has to be similar like this
https://i.imgur.com/6tU92cv.jpg


a pair of video
https://www.youtube.com/watch?v=BmlNWxqZb-U
https://www.youtube.com/watch?v=pkb8AXyLN8I&

i have make an useful (util,utile?) to put the pieces in place
https://i.imgur.com/x6jTc5B.jpg
https://i.imgur.com/lVOSR0h.jpg

We continue, this time, the bucket, this is a pretty piece, made of steel sheets cut with laserhttps://i.imgur.com/F5zq6rn.jpg
https://i.imgur.com/2wM5Yt8.jpg
https://i.imgur.com/b5iPFgc.jpg
https://i.imgur.com/ZvnA3x2.jpg
https://i.imgur.com/FDElu16.jpg
https://i.imgur.com/zdgU8pk.jpg
https://i.imgur.com/Fstp8ns.jpg
https://i.imgur.com/Vd0Xu5p.jpg
https://i.imgur.com/Eypupo2.jpg
https://i.imgur.com/IUy17xs.jpg
https://i.imgur.com/dBy8Od6.jpg
https://i.imgur.com/dqM8ho0.jpg
https://i.imgur.com/GEyz8yL.jpg
on the inside, it measures 185mm

[tessen]

ok, next phase
i will do the "tooth" and "tooth holder" with lost wax process, but using 3D printer technique (ussing a diy 3D printer), first time, to make the 3D print model (i use different types of resin)
https://i.imgur.com/vLxZC83.jpg
https://i.imgur.com/XhXWVPy.jpg
https://i.imgur.com/naP07TT.jpg
https://i.imgur.com/LtWjnzT.jpg
https://i.imgur.com/wLEyT5g.jpg
https://i.imgur.com/mwclA5J.jpg
https://i.imgur.com/bYdvRjY.jpg
https://i.imgur.com/CGSf1L3.jpg
https://i.imgur.com/wDoaYLr.jpg

now i use those part to make silicone models to obtain wax parts
https://i.imgur.com/lY5bDxL.jpg
https://i.imgur.com/935XFz1.jpg
https://i.imgur.com/K1P6xki.jpg
https://i.imgur.com/mgXVb5S.jpg
(how easy and fast seen like this jeje)
https://i.imgur.com/8YZDEje.jpg
https://i.imgur.com/i3PWmJZ.jpg
https://i.imgur.com/CiaGc97.jpg
https://i.imgur.com/Ku8JagC.jpg
https://i.imgur.com/vjQFDvq.jpg

the pieces welded by brazing
https://i.imgur.com/k2KBCqc.jpg
https://i.imgur.com/x99bc7k.jpg
https://i.imgur.com/pmyWrL7.jpg
https://i.imgur.com/kZvQJkM.jpg
https://i.imgur.com/v2GRvFN.jpg
https://i.imgur.com/UEIlu99.jpg

and almost finished (yet not, I have to add minor details)
https://i.imgur.com/RIDcpBq.jpg
https://i.imgur.com/mEkdsBZ.jpg
https://i.imgur.com/EixpgMe.jpg

[tessen]

another piece, the arm
are made of steel ribs cut with laser and welded together with MIG
https://i.imgur.com/uIzXhS0.jpg
https://i.imgur.com/oR8fj4f.jpg
https://i.imgur.com/vO2bH4E.jpg

the previous piece need on both sides spacers, made of brass and using sand casting technique, those part are glued with epoxy to the main body, but it´s not important, once time in place, can´t move
https://i.imgur.com/uJgSwYf.jpg
https://i.imgur.com/sHFUFFs.jpg
https://i.imgur.com/KMkeqQV.jpg
https://i.imgur.com/Bm2wifd.jpg
https://i.imgur.com/l8H97ki.jpg

and after machining
https://i.imgur.com/noP6JCj.jpg
https://i.imgur.com/aA0TSHy.jpg
https://i.imgur.com/nntrhNR.jpg
https://i.imgur.com/wu8TRd4.jpg

now the part that hold the bucket hydraulic piston (made of brass) in the arm
https://i.imgur.com/qd2afgC.jpg
https://i.imgur.com/KDA0vRA.jpg
https://i.imgur.com/8TxGF7u.jpg
https://i.imgur.com/lktbnMf.jpg
https://i.imgur.com/MaqrUXs.jpg
https://i.imgur.com/RXO5JsV.jpg
https://i.imgur.com/OjyXrj5.jpg

and all the pieces that form the arm
https://i.imgur.com/2h1h7Uk.jpg

this part is a rock protector in the lower side of the arm
https://i.imgur.com/EBfWxDm.jpg
https://i.imgur.com/zoLWbI6.jpg
https://i.imgur.com/gY8pLNT.jpg
https://i.imgur.com/xXfeOVn.jpg
and the final piece (almost)
https://i.imgur.com/FLaXBwL.jpg

[tessen]

These parts are those that articulate the bucket with the arm,
This piece is made of brass, joins the piston with the bucket, some photos of some parts of the machining
https://i.imgur.com/LE52Pb8.jpg
https://i.imgur.com/OkyVnie.jpg
https://i.imgur.com/pb5nTWQ.jpg
https://i.imgur.com/2WNiTd0.jpg
https://i.imgur.com/mhtjSiz.jpg
https://i.imgur.com/CmiYa0G.jpg

and these 2 parts make the bucket pivot on the arm, they are made of steel (I do not like to work with this engine ... it is a factory to produce pins)
https://i.imgur.com/rrI5pQP.jpg
https://i.imgur.com/fr7V7Ze.jpg
https://i.imgur.com/pFboel2.jpg
https://i.imgur.com/0WpIWjU.jpg
https://i.imgur.com/qGaxBUM.jpg
https://i.imgur.com/icvnxm1.jpg
https://i.imgur.com/C2T29Hq.jpg
https://i.imgur.com/tb2e7tn.jpg

and this a presentation of how it´s works
https://i.imgur.com/8mm6Xq9.jpg
https://i.imgur.com/MCgG27j.jpg

now i show some minor details
https://i.imgur.com/wIqpsjM.jpg
https://i.imgur.com/5xn4ynT.jpg
https://i.imgur.com/do8FskS.jpg
https://i.imgur.com/uzeif6r.jpg

this is the original stairs on the lower superstructure
https://i.imgur.com/L0b29VO.jpg

and here my pieces to scale
https://i.imgur.com/h00kS5f.jpg
https://i.imgur.com/lkqrv72.jpg
https://i.imgur.com/v4vfY6q.jpg
https://i.imgur.com/GgPZ9cQ.jpg
https://i.imgur.com/OPvSsii.jpg
https://i.imgur.com/zedbUAX.jpg

[tessen]

the turret turning system

https://i.imgur.com/3mfrSfo.jpg
https://i.imgur.com/EQb4t6a.jpg
https://i.imgur.com/uAtzYiX.jpg
https://i.imgur.com/Z9vhbtS.jpg
https://i.imgur.com/vLRbS2e.jpg
https://i.imgur.com/NtfZrZg.jpg
https://i.imgur.com/RhTw5KZ.jpg
https://i.imgur.com/rYeUiII.jpg
https://i.imgur.com/p8e4mzQ.jpg
https://i.imgur.com/NjRH0S6.jpg
https://i.imgur.com/xjtYoYw.jpg
https://i.imgur.com/LweqbT0.jpg
https://i.imgur.com/4gm4AS9.jpg
https://i.imgur.com/Z2nqjxt.jpg
https://i.imgur.com/RrWocRD.jpg
a little video of the motor and the gearhead
https://youtu.be/6APESpE42aY

and the rest of gearhead
https://i.imgur.com/fwSkLqw.jpg
https://i.imgur.com/b7tf08f.jpg

and a video to show how it´s works
https://youtu.be/oIVaSKgdFJg

to show, lower structure and boom, i'm delaying too much the time to show advances (becasuse i would like to show those set more advanced) and at the end, i lost pictures along the way

base for the upper structure
This part is the one that supports the whole upper set, to it is taken both the arm and the counterweight, the base is a 6mm of steel sheet and the most important parts are either groove joints or threaded, photos:

https://i.imgur.com/LZ7CiqS.jpg
https://i.imgur.com/HFFBMAb.jpg
https://i.imgur.com/5bhPRFg.jpg
https://i.imgur.com/AKzA8hE.jpg

the boom:
It is composed of several pieces, the main structure is made by joining steel sheets of different thicknesses, with them I create an inside skeleton, the pivot points are solid pieces, to complete it i will fill the interior with epoxy and filler to give more consistence , Photos:

https://i.imgur.com/LjB2ldP.jpg
https://i.imgur.com/IBcKlZq.jpg
https://i.imgur.com/eDt417f.jpg
https://i.imgur.com/XDuro0f.jpg
https://i.imgur.com/yBYfSwq.jpg
https://i.imgur.com/3p2aEgf.jpg
https://i.imgur.com/d67NhQo.jpg
https://i.imgur.com/HqXzjcm.jpg

[tessen]

reinforcements at the tip of the arm
https://i.imgur.com/VZWDNbh.jpg
https://i.imgur.com/BfdvaP1.jpg

and the look of the set presented
https://i.imgur.com/Njxe6aN.jpg

the following is the joining of the hydraulics ram in the boom, I use a piece of brass and I will mechanize it to shape
https://i.imgur.com/C2iKs3m.jpg
https://i.imgur.com/RjqLD9D.jpg
https://i.imgur.com/b2mgG0R.jpg

this is the set presented
https://i.imgur.com/Q4EQ8jr.jpg
https://i.imgur.com/1j656iS.jpg

The next piece makes the pivot point of the pistons that move the arm, this piece is taken out of casting brass
https://i.imgur.com/Lnu5lbv.jpg

Another thing I have done is accentuate the detail of the welds on both the sides of the machine, using copper wire and solder
https://i.imgur.com/qK7RGOf.jpg
https://i.imgur.com/T7WPP6l.jpg
https://i.imgur.com/Y0DJdj4.jpg

and one of the last steps would be to fill as previously mentioned with resin and filler to give more rigidity to the set, filling gaps and fixing some internal parts
https://i.imgur.com/gCsXE3P.jpg

and here once the resin dries
https://i.imgur.com/wTTmgbT.jpg
https://i.imgur.com/KhMG487.jpg

and finally I show you the anchoring of the counterweight, given the weight of this part I had to devise a way to assemble and disassemble, the machine will be too heavy, I need to subtract weight to be able to transport it more easily and for maintenance labours . The system is relatively simple. I leave you some photos and a small video of the operation
https://i.imgur.com/WmCfZT2.jpg
https://i.imgur.com/uNIjGvG.jpg
https://i.imgur.com/Ww8AOIb.jpg
https://i.imgur.com/rkst7br.jpg
https://i.imgur.com/ij0i0HT.jpg

https://www.youtube.com/watch?v=2aPF_1oc5XE&feature=youtu.be

[tessen]

Once time the mechanical part is "almost ready" i start to show the hydraulic parts and begin with the rams (it's a complex parts), the bodies of cylinders are made in steel and the ends and tips are made in brass, in all of them, the lower part is welded and the upper part is threaded (M2 arm and M3 boom and bucket)

https://i.imgur.com/n8iXULl.jpg

https://i.imgur.com/XrSUCFX.jpg

https://i.imgur.com/Gj98rTh.jpg

https://i.imgur.com/MDD8Y9c.jpg

https://i.imgur.com/TI8DcTm.jpg

https://i.imgur.com/jK8qekh.jpg

https://i.imgur.com/Pn3BVbT.jpg

here some machined parts
https://i.imgur.com/aGu2OCA.jpg

https://i.imgur.com/VDfj5ie.jpg

here, the cylinders with the lower end welded
https://i.imgur.com/C80L6ak.jpg

now the cylinders more advanced are the boom cylinders and the bucket, the following will be the arm cylinders, but like a little advance i show some parts of the arm cylinders

future fittings in the head of the cylinder
https://i.imgur.com/27Q1CEz.jpg

https://i.imgur.com/Cc2IRi8.jpg

https://i.imgur.com/fWQl4iA.jpg

https://i.imgur.com/MwyGASR.jpg

At this point, I continued with the fittings, as I didn't like any market option, I also decided machining these pieces, another difficulty more .. are turned from 3mm brass tube
https://i.imgur.com/pCNlfgU.jpg

https://i.imgur.com/Vnf0qF3.jpg

https://i.imgur.com/ixb9tDf.jpg

and a little video
https://www.youtube.com/watch?v=oMl4QfXbk_k&feature=youtu.be

Also i will need angled fittings, so I made a small tool to bend the tubes
https://i.imgur.com/QztkVxX.jpg

https://i.imgur.com/8XN9CpH.jpg

here one of both hydraulic rams on the boom, almost finished (only need the paint)
https://i.imgur.com/F4EpAWS.jpg

and naturally, I have to do pressure tests, to see if all the parts hold up well :diable:
This is the pressure equipment, which helps me to make static pressure tests perfectly
https://i.imgur.com/Se1E4FC.jpg

a small video (the small leaks that are seen .. they do not have any importance)
https://www.youtube.com/watch?v=1grkjPc7uOo&feature=youtu.be

and the other end
https://i.imgur.com/dxe9kCc.jpg

and now is the bucket cylinder time, photos
https://i.imgur.com/rSHmKaY.jpg

https://i.imgur.com/HDztwDW.jpg

[tessen]

hydraulic test of this fitting
https://i.imgur.com/mLHeGuD.jpg

https://i.imgur.com/dxTgdJz.jpg

https://i.imgur.com/mtqp0h3.jpg

https://i.imgur.com/nKeG0Lh.jpg

and a previous assembly to get an idea of how it will be

https://i.imgur.com/0Rj2K6Z.jpg

https://i.imgur.com/7QVyMLO.jpg

And finally, the supports of the pipes in the pistons, I cut them with the help of the wire cutter and some machining, photos and a small video
https://www.youtube.com/watch?v=XGvwIqU57jY&feature=youtu.be

https://i.imgur.com/WsbyKhA.jpg

https://i.imgur.com/mHTOe9M.jpg

https://i.imgur.com/SjyH5mT.jpg

some details of the hydraulic parts that I already have something more advanced (probably repeat some photo)

supports for hoses (machined with milling machine and wedm)
https://i.imgur.com/bUAv13A.jpg
https://i.imgur.com/vgwPT4Q.jpg
https://i.imgur.com/8aSEDXe.jpg
https://i.imgur.com/A4IlGbx.jpg
https://i.imgur.com/8aSEDXe.jpg
https://i.imgur.com/wpI3h36.jpg
https://i.imgur.com/Q7NA4HA.jpg
https://i.imgur.com/avVkwxx.jpg
https://i.imgur.com/tJJORlJ.jpg
https://i.imgur.com/eNcVXPe.jpg
https://i.imgur.com/w36QCqE.jpg

supports for hoses in the boom
https://i.imgur.com/8M0ABwF.jpg
https://i.imgur.com/NHo3cF3.jpg

finished and threaded at M1.4
https://i.imgur.com/kkH3MV3.jpg

support base of hose in the boom
https://i.imgur.com/AchaKLf.jpg
https://i.imgur.com/fYuAqCd.jpg

and overhall view for supports
https://i.imgur.com/ber53VQ.jpg
https://i.imgur.com/qxJAVYq.jpg

the pieces that form the supports parts on the boom
https://i.imgur.com/sJz7JLH.jpg
https://i.imgur.com/5ZGGtjO.jpg
https://i.imgur.com/O5CMXVM.jpg

[tessen]

the hydraulic distributor on the boom
https://i.imgur.com/Qsv5Dhg.jpg
https://i.imgur.com/KbzOJe9.jpg

https://i.imgur.com/QcA4BbC.jpg
the piston head on the arm cylinder before soldering
https://i.imgur.com/Uqi4UKZ.jpg

and soldered
https://i.imgur.com/uuMs8Ah.jpg
https://i.imgur.com/KBbqulx.jpg

the back of the arm pistons
https://i.imgur.com/5bPZILN.jpg

cylinder already assembled
https://i.imgur.com/p5LXH4d.jpg
https://i.imgur.com/WqaDE2C.jpg
https://i.imgur.com/LnlXMfA.jpg

both cylinders with the "ausleger"
https://i.imgur.com/mAX9OBq.jpg
https://i.imgur.com/rNM7Dn4.jpg

and this is a static pressure test for one of the arm cylinder
https://www.youtube.com/watch?v=BAShCF_wmio&feature=youtu.be

and the all the pieces look better in this way
https://i.imgur.com/UF2xmnZ.jpg
https://i.imgur.com/jXLe7iX.jpg
https://i.imgur.com/rTZuQVi.jpg
https://i.imgur.com/KgiHf6v.jpg
https://i.imgur.com/kRDoeEZ.jpg
https://i.imgur.com/cIhFLII.jpg
https://i.imgur.com/3RVh7BA.jpg
https://i.imgur.com/Padj5LR.jpg
https://i.imgur.com/mLcyQWD.jpg
https://i.imgur.com/Bz15DOZ.jpg
https://i.imgur.com/ZPPCRTU.jpg
https://i.imgur.com/ylu0ebM.jpg
https://i.imgur.com/vEwZylp.jpg
https://i.imgur.com/HQBN4SL.jpg
https://i.imgur.com/UL3Qt70.jpg
https://i.imgur.com/LDGwY7P.jpg
https://i.imgur.com/jWP0HRd.jpg
https://i.imgur.com/vx0wtDf.jpg

[tessen]

https://i.imgur.com/2ii5B5R.jpg
https://i.imgur.com/yfJPBd8.jpg
https://i.imgur.com/JdquGTn.jpg
https://i.imgur.com/S5WWjbc.jpg

This photo is a small sample of the machining of tools and (I don't know how to call this) the bolt heads that block the hydraulic cylinders and prevent them from leaving their housing

https://i.imgur.com/WgoCpTd.jpg

In this case, I needed to make the holes in that piece to place the locking tab

https://i.imgur.com/HV0qLxE.jpg
https://i.imgur.com/x55Tte6.jpg

and these are some of the heads of those bolts that I mentioned before, ready to paint (I hate painting)

https://i.imgur.com/NsrSLSP.jpg

Before moving on to the painting phase, I still had to install some type of wear protector that has the bucket behind it ... I don't know the exact name of this piece, there are a lot of types and it's difficult choose, in fact at the beginning select a model and at the last moment, change to this one, that was more complex, but hey, in the end both would have been good
I'm going to put these bars

https://i.imgur.com/D0I7h71.jpg

here
https://i.imgur.com/jlAdLBe.jpg

This part will seem silly, but it has cost me a lot to do it, since the bars are very close, in the end I did it by spot welding (a friend lent me an industrial welder) sorry i didn´t take photos after the welding

Now, we go to the painting:
All the pieces have several layers of primer and the same layers of paint

https://i.imgur.com/cgokXVS.jpg
https://i.imgur.com/pTW5BQn.jpg
https://i.imgur.com/jgj7w4p.jpg

https://i.imgur.com/HwvPLYs.jpg
https://i.imgur.com/auwNJXX.jpg
https://i.imgur.com/WGkCGNz.jpg
https://i.imgur.com/zv8792n.jpg
https://i.imgur.com/dWatm18.jpg
https://i.imgur.com/b6Re3vb.jpg

Now it's the turn of the bucket piston
https://i.imgur.com/OnlNFc0.jpg
https://i.imgur.com/esihHaj.jpg

and once without masking tape
https://i.imgur.com/yvcIDaR.jpg
https://i.imgur.com/6oPXIL3.jpg
https://i.imgur.com/G72423f.jpg
https://i.imgur.com/RmpoR8s.jpg

The next thing is to mount the "denture" to the bucket
https://i.imgur.com/hcY7J4r.jpg
https://i.imgur.com/lYV5crF.jpg

[tessen]

time to assemble the bucket and arm
https://i.imgur.com/UsC9EbU.jpg
https://i.imgur.com/Cl8X6Ho.jpg
https://i.imgur.com/pFIPiWZ.jpg
https://i.imgur.com/t7rL8TV.jpg

https://i.imgur.com/p96EOk9.jpg

Some outdoor photos
https://i.imgur.com/ny2T5PE.jpg
https://i.imgur.com/Lcqb5rU.jpg
https://i.imgur.com/LeiFVhJ.jpg
https://i.imgur.com/aP4OQGS.jpg
https://i.imgur.com/ee3wH6k.jpg
https://i.imgur.com/lLKvQNU.jpg

This subset weighs 10Kg

I also leave a video summary of this work
https://youtu.be/vjv72vvUBPU

the locks and closures of the pins that join both sets, (almost) all of them are functional
https://i.imgur.com/wo1tjxK.jpg
https://i.imgur.com/xRTHn8w.jpg
https://i.imgur.com/MyyxoHU.jpg
https://i.imgur.com/DdTRdxO.jpg
https://i.imgur.com/wo1tjxK.jpg
https://i.imgur.com/b1KbN2x.jpg
https://i.imgur.com/LUGwxYG.jpg

the bolts are made of steel and the head has a piece with a tongue that will then block
https://i.imgur.com/XJuYBfU.jpg

all these heads, are welded (with tin) to the blocks pins
https://i.imgur.com/tyAZWpf.jpg
https://i.imgur.com/9jCaLdt.jpg

and the pieces presented
https://i.imgur.com/RFdRmU7.jpg
https://i.imgur.com/FiAUtBX.jpg
https://i.imgur.com/smajO4N.jpg
https://i.imgur.com/bmQrMYC.jpg
https://i.imgur.com/nOQIozE.jpg

Here in addition to the aforementioned parts, we also have some handles that carry the boom for transport (I guess)
https://i.imgur.com/MsKc2u0.jpg
https://i.imgur.com/AtwUJiY.jpg

Here the previous set, with the arm already painted
https://i.imgur.com/L6WWRQE.jpg

and now it's the turn of the rest of the hydraulic rams
https://i.imgur.com/c9musUq.jpg

[tessen]

but before showing you how they are once painted, I am going to show you a detail that would practically go unnoticed and since I have put it .. that is seen, first I describe it a bit and then, I show the photos and everything is clarified. These pieces, are a simulation of the closures of the fittings in the pistons, a kind of flange, they are not functional, they are made of resin and they are glued, but they give some realism to the whole

https://i.imgur.com/jWx3trj.jpg

in microscope
https://i.imgur.com/qUruOID.jpg
https://i.imgur.com/5VCM8aF.jpg

and now, the paint
https://i.imgur.com/8tajl19.jpg
https://i.imgur.com/hupxWmd.jpg
https://i.imgur.com/5MXoPyN.jpg
https://i.imgur.com/3N76Plh.jpg
https://i.imgur.com/OqkxgB6.jpg

these are the heads of the locking bolts together with their housings and the plates that make the closure
https://i.imgur.com/SUSFjl7.jpg
https://i.imgur.com/XSiANhJ.jpg
https://i.imgur.com/MYWqvWF.jpg
https://i.imgur.com/qHXW8So.jpg
https://i.imgur.com/VHu3pPz.jpg

These are details into the tracks, I suppose that in the real machine they would be service covers for maintenance of the track tensioning system
https://i.imgur.com/lij8I5N.jpg
https://i.imgur.com/l6Ui6Vs.jpg
https://i.imgur.com/7GkpC4M.jpg
https://i.imgur.com/dSHC07W.jpg
https://i.imgur.com/xaxRbxC.jpg
https://i.imgur.com/qG4ugSa.jpg
https://i.imgur.com/qnXhdH8.jpg

pipe supports on the arm
https://i.imgur.com/dwC76GM.jpg
https://i.imgur.com/WGfcHN0.jpg
https://i.imgur.com/LpJ6jF2.jpg

some photos of the tank and fittings, it was going to be a temporary tank, but .. as usual, for now I will keep it that way, and I will change it in the future .. or not: o) the tank has an oil filter incorporated
https://i.imgur.com/c7LBllh.jpg
https://i.imgur.com/TOdPiJC.jpg
https://i.imgur.com/dQ5J0qc.jpg
https://i.imgur.com/d2WSZ8G.jpg

I'm going to place photos from the lower structure (tracks) to the upper part (turret) to follow a certain order
https://i.imgur.com/oO4I11u.jpg
https://i.imgur.com/Tu5DQSt.jpg
https://i.imgur.com/99tlXgy.jpg

[tessen]

tracks once painted (only on the inside)
https://i.imgur.com/J1dgGFY.jpg

detail of the sprocket caps
https://i.imgur.com/OUiyhvX.jpg
https://i.imgur.com/R1ge7CJ.jpg
https://i.imgur.com/quAkakx.jpg

front wheel with its tensioning springs
https://i.imgur.com/ENgJPw8.jpg
https://i.imgur.com/kUo932v.jpg

In this photo we can see the internal components in the lower structure, there is no rotating electrical connection between upper and lower structure, there would be 2 independent machines, with their battery, receiver, motors and motor drivers
https://i.imgur.com/VXnzh3G.jpg
https://i.imgur.com/EapT8N2.jpg

and its corresponding bottom cover
https://i.imgur.com/f6Pe445.jpg

the lower structure painted
https://i.imgur.com/bSTVJmP.jpg
https://i.imgur.com/s0yHJzR.jpg
https://i.imgur.com/UsLjk25.jpg

the turning system
https://i.imgur.com/LGfrGkP.jpg
https://i.imgur.com/FoXvUnx.jpg
https://i.imgur.com/xJL3osb.jpg
https://i.imgur.com/ftTwg3Y.jpg
https://i.imgur.com/vEGA4fY.jpg

the upper structure
https://i.imgur.com/hLWZjeT.jpg
https://i.imgur.com/HEvfsXo.jpg
https://i.imgur.com/gtrBEib.jpg
https://i.imgur.com/BIQVPyI.jpg

hydraulic pistons and some details
https://i.imgur.com/IIBn9eA.jpg
https://i.imgur.com/8gqrwLq.jpg
https://i.imgur.com/My0xrMt.jpg
https://i.imgur.com/2u7fro7.jpg
https://i.imgur.com/n9QCsjh.jpg
https://i.imgur.com/C9CA2qp.jpg
https://i.imgur.com/aIaHQhm.jpg
https://i.imgur.com/J70A6Ed.jpg
https://i.imgur.com/cdzkTkR.jpg

[tessen]

and the hydraulic fittings
https://i.imgur.com/h3BaMgl.jpg
https://i.imgur.com/wuw46h1.jpg
https://i.imgur.com/3CEEmVL.jpg

and the hydraulic part, here I will stop a little more, since this is not usually seen very often, I have already mentioned that the hydraulic system is of very high pressure, it reaches up to 200 bar, each element has been tested individually to ensure its operation at mention pressure, the pump sends the oil to an oil accumulator, pressurized to 70 bars of gas pressure, that is, any oil flow that does not reach that pressure, would not enter in this accumulator.At the output of the pump, we also have, in parallel, a pressure limiting valve, set at 200 bars if the pressure in the system rises above that value, it sends the excess to the tank passing through the filter previously and a pressure sensor, this element It controls the pressure at the pump outlet, and I am going to use it to control what pressure I want the system to work at, broadly speaking, with the station I send a signal to a microcontroller that is in the machine and it compares the signal that I send you with the transmitter, and the signal that comes from the sensor, if the control signal is less than the sensor signal, it does nothing, but if it is the other way around, it turns on the pump until the pressure in the circuit is the desired one. Useful pressure ranges from 80 to 200bar, at less than 80 bar the sensor does not measure well and over 200 bar the pressure limiting valve trips
Photos:
the sensor
https://i.imgur.com/BW4FRvu.jpg
various elements, pump, pressure limiter, tank
https://i.imgur.com/kaaKch5.jpg

this is the tank, only with the gas precharge pressure (70 bar)
https://i.imgur.com/aQEv70P.jpg

https://i.imgur.com/QndlDtq.jpg
https://i.imgur.com/Ea5ZaHH.jpg
https://i.imgur.com/OrQWyr5.jpg
https://i.imgur.com/sC6WPSe.jpg

some tests already with pressure
https://i.imgur.com/9f47stg.jpg
https://i.imgur.com/40jPa97.jpg

a little a summary video
https://youtu.be/PJko2NQGDLY

in the next step, basically focus on teaching details and painting (as I could best) let's get to it!

I'm going to start with what would be the bodywork, my initial idea was to make a bodywork, like the real ones, with its little doors, accesses and those things, but in the end I had to opt for functionality, the panels are simulated, but .. I think they are quite the hit and I have put in a good amount of detail


The first thing is to calculate the development of the body once unfolded, to pass it later to laser cutting, then I had to prepare a small assembly, since before folding this sheet, I had to mill some small grooves on its surface, which are the that they are going to simulate the separation between the panels of the bodywork, for this I had to prepare a wooden board that acts as a martyr and machine the negative shape of the plate, with this I make sure that it rests flat and everything at the same height , but the endmill (1mm in diameter) can eat more material than it should and split and / or make a through hole, which I don't want either
https://i.imgur.com/CP5Hm5L.jpg
https://i.imgur.com/066LFIM.jpg
https://i.imgur.com/MxU2yOF.jpg
https://i.imgur.com/jiWQj7L.jpg

OK, once the grooves are made, we move on to the folding, here I would like to comment on the "tricky" of the operation, if the folds are not perfectly in place, the body could be higher (losing width) with which it would not enter the machine, since it is very tight or it could also be wider (losing height) this is almost worse, since it would create an interference in height with the workshop components and it would not fit into the structure because it is too wide, it is complicated the issue

https://i.imgur.com/SNqIdgW.jpg
https://i.imgur.com/3o0jqsS.jpg

and here a few more photos
https://i.imgur.com/x5oKBDN.jpg
https://i.imgur.com/NeBYqlT.jpg
https://i.imgur.com/0Gilhm0.jpg
https://i.imgur.com/CFrClp1.jpg
https://i.imgur.com/rZON0Vm.jpg

the handles of some covers on the bodywork and the anchoring of one of the railings
https://i.imgur.com/RSZeo2v.jpg
https://i.imgur.com/olt6ldu.jpg
https://i.imgur.com/O9BP5et.jpg
these covers will be screwed, it is a simple aesthetic detail, but I like how it looked

here once painted
https://i.imgur.com/DmuwxDc.jpg

[tessen]

photo of one of the railings that goes in front of the machine
https://i.imgur.com/15crkh5.jpg
https://i.imgur.com/muvF94j.jpg
https://i.imgur.com/wWUF4Rt.jpg

Now we are going for the 3 ventilation grids that the machine carries, it has several types on both sides of the structure, the grids are laser cut in 0.5mm sheet and the nerves with the wire edm
https://i.imgur.com/oLkYKxp.jpg
https://i.imgur.com/kKxny1n.jpg
https://i.imgur.com/zvRIfib.jpg
https://i.imgur.com/2s3J4Xg.jpg
https://i.imgur.com/XOLLQ55.jpg
https://i.imgur.com/QdjGI9J.jpg
https://i.imgur.com/DohJieI.jpg
https://i.imgur.com/4Pxu2JL.jpg
https://i.imgur.com/Mj8NDnP.jpg
https://i.imgur.com/CepkW5r.jpg
https://i.imgur.com/bciPAul.jpg
https://i.imgur.com/9HSA2oH.jpg

and here the 3 finished grids
https://i.imgur.com/6yreCix.jpg
https://i.imgur.com/eIbM3uN.jpg
https://i.imgur.com/SJqguut.jpg

presented
https://i.imgur.com/i7EudY3.jpg
https://i.imgur.com/GXruvei.jpg
https://i.imgur.com/jKcN1nq.jpg

an overview
https://i.imgur.com/vctQbH0.jpg

and with its coat of primer and paint
https://i.imgur.com/yRPUKWY.jpg
https://i.imgur.com/6THgtVi.jpg

painting the dividing slots between cloths
https://i.imgur.com/MSJNrDk.jpg
https://i.imgur.com/iwLJusG.jpg

overview once painted
https://i.imgur.com/Hjdjkli.jpg
https://i.imgur.com/CWJGTUw.jpg

[tessen]

This would be the handles of the side doors of the body, due to their size, printed in 3D resin (I made several models)
https://i.imgur.com/NDTzvbL.jpg
https://i.imgur.com/ytk9cYs.jpg
https://i.imgur.com/iX7xXS5.jpg
https://i.imgur.com/ztyyjSp.jpg

the caps i showed earlier, ready to install
https://i.imgur.com/h3UWTJd.jpg
https://i.imgur.com/FRbyKrI.jpg

As with the bodywork, I proceed with "the hood" (I don't know what these pieces are called), first it is to take out the development of the pieces to be able to cut them with laser, then to laser cut in 0.5mm stainless steel and fold This time because of their size, I have no choice but to do the folding by hand, it doesn't look so good, but .. it's passable
https://i.imgur.com/O1iXrzz.jpg

once folded and presented
https://i.imgur.com/XBvzN9S.jpg
https://i.imgur.com/fmTIwgu.jpg
https://i.imgur.com/wWUnkHw.jpg

this is its corresponding railing
https://i.imgur.com/Yjrev8G.jpg
https://i.imgur.com/uyEphPZ.jpg

and here already finished and painted
https://i.imgur.com/Tja40XR.jpg
https://i.imgur.com/CGqJarI.jpg

Apart from the grids, there are also mesh plates on the excavator, one on each side, I suppose they will also be ventilation, let's go with them:
For this I made a small tool with the 3D printer, which is attached to the jaw of the milling machine and makes the mesh folds
https://i.imgur.com/cVfUu9D.jpg

I leave a small video that explains it perfectly
http://www.youtube.com/watch?v=j4_8tw9wiyg

https://i.imgur.com/Bm7Oq7Z.jpg
https://i.imgur.com/9d4tJlb.jpg
https://i.imgur.com/tUh8tPK.jpg
https://i.imgur.com/Ag3q0o2.jpg

one thing left to do is finish painting the counterweight
https://i.imgur.com/B9NW8ph.jpg
https://i.imgur.com/M7i4OGy.jpg

We continue with the side walkways and the cabin platform, these structures are made of 1mm stainless steel sheet, tongue and groove to facilitate assembly and then welded

We start from laser cut parts
https://i.imgur.com/uEi05Ax.jpg
and we are assembling them, this in particular is the platform of the cabin
https://i.imgur.com/SVvCgdC.jpg

the side panel of the cab platform, milled for later folding
https://i.imgur.com/99adIAW.jpg
https://i.imgur.com/BuMEmzK.jpg

and this is how it looks
https://i.imgur.com/jAfdG1W.jpg
https://i.imgur.com/C70iNgT.jpg
https://i.imgur.com/HVTPbig.jpg

[tessen]

and in the same way I proceed with the side walkways
https://i.imgur.com/oW9K71U.jpg
https://i.imgur.com/A82Aa2S.jpg
https://i.imgur.com/uai0hVU.jpg
https://i.imgur.com/uvaXdy9.jpg
https://i.imgur.com/XtzfXC2.jpg
https://i.imgur.com/bGBQmca.jpg
https://i.imgur.com/BtDobrP.jpg

these brass pieces .. it gave me a lot of trouble, despite how simple it seems and that is why I leave this mention
https://i.imgur.com/rn3CrAN.jpg
https://i.imgur.com/1zmsB85.jpg

and once painted
https://i.imgur.com/l6X8F9q.jpg
https://i.imgur.com/MTmpSIw.jpg

On top of the catwalks and the cabin platform, there is a mesh that serves as the floor and that could not be missing
https://i.imgur.com/U7hutkr.jpg
https://i.imgur.com/BR40zQ0.jpg
https://i.imgur.com/vdXt1MO.jpg
https://i.imgur.com/6jnrpr9.jpg
https://i.imgur.com/vYXB9bJ.jpg
https://i.imgur.com/8c9kNPi.jpg

the next thing I have to do, are the rails of the cabin platform, they are made with folded brass bar, but first I start by showing the joints to the platform
first they are milled
https://i.imgur.com/pUChEqd.jpg
https://i.imgur.com/KEnafes.jpg

and then I weld them to the bars (brazing)
https://i.imgur.com/UIcnhqK.jpg
https://i.imgur.com/eBE64U3.jpg

a little video
http://www.youtube.com/watch?v=JZeuTX_M7eA

I had to prepare a tool to hold all the pieces in position, there were really several tools, it was not easy
https://i.imgur.com/iqLt4Gr.jpg
https://i.imgur.com/FHk28xF.jpg
https://i.imgur.com/EWaAd5d.jpg
https://i.imgur.com/Xtf9k12.jpg

[tessen]

the result
https://i.imgur.com/bcQKrsC.jpg
https://i.imgur.com/6uQgk0N.jpg
https://i.imgur.com/QWm3gA2.jpg
https://i.imgur.com/dskDSuv.jpg
https://i.imgur.com/WCwu7o9.jpg
https://i.imgur.com/5MtILqW.jpg
https://i.imgur.com/MrPs2cE.jpg
https://i.imgur.com/sQWhIRu.jpg
https://i.imgur.com/Jp0256X.jpg

and once primed
https://i.imgur.com/vhTIknt.jpg
https://i.imgur.com/3Mbk4Cx.jpg

we go with the pieces that join the platform to the oil tank - upper structureTambién parto de unas piezas fresadas en latón
https://i.imgur.com/GlSq7M7.jpg
https://i.imgur.com/b9Q5Rxb.jpg

These pieces are screwed to a 3D printed piece that complements the tank and this printed piece, in turn, is screwed to the tank itself, the platform will later also be screwed to these brass pieces
https://i.imgur.com/ZAxdQEL.jpg
https://i.imgur.com/xBwWugx.jpg
https://i.imgur.com/gYUbE7G.jpg

oil tank with 3D dressing and tank-structure union parts <-> cabin platform
https://i.imgur.com/WEM4zVa.jpg

With this, I would already have the cabin platform attached to the structure, but I also have to join the walkways to the structure, I do that with these pieces, which are screwed from the bottom to the upper structure and to those that will be screwed later. the catwalks

more pieces milled in brass
https://i.imgur.com/VAitwjG.jpg

and once cut and painted
https://i.imgur.com/VBg6CVJ.jpg

I can now install the walkways in their position
https://i.imgur.com/watCyBN.jpg
https://i.imgur.com/O9WUdQI.jpg
https://i.imgur.com/YJtLENd.jpg
https://i.imgur.com/IxugX78.jpg
https://i.imgur.com/JOg7hvi.jpg
https://i.imgur.com/VBWB4OT.jpg
https://i.imgur.com/LEsHceP.jpg
https://i.imgur.com/TkIXiPu.jpg
https://i.imgur.com/bsk84oY.jpg
https://i.imgur.com/gal4riC.jpg

the next step the cabin. This is a piece that carries its complexity and it has taken me more time than I thought and also I have not solved it as I would like ... but hey, my initial idea was to make this piece all of it in metal, the easiest thing for me was to manufacture it with the technique of microfusion (lost wax casting) I have already taught pieces made in this way before, I make a master piece, which I then bury in a special "plaster", heat everything until the piece disappears and then fill the gap that remains with metal

I print the pieces in 3D divided into 4 parts, since they are very large pieces and the cylinders do not fit in any other way
https://i.imgur.com/Kd5wRuS.jpg

[tessen]

mounting the casting trees
https://i.imgur.com/hfn5XN4.jpg

and so they come out after the process
https://i.imgur.com/nkJ4Tl0.jpg

and superimposed to see how they look
https://i.imgur.com/l1mwcnI.jpg

They do not come out perfect, but they are repairable and can be used, but since I think that I will not have time to weld and prepare this cabin, I leave it in "stand by" and look for how to make another cabin, more quickly, for this faster is 3D printing -> FDM 3d printing
https://i.imgur.com/rwOvyy9.jpg
https://i.imgur.com/ENeeOk0.jpg

This is a so-called "special" PLA so that it acquires all its mechanical properties, it requires post-processing a heat treatment, you have to heat the material up to about 80º and leave it there for a couple of hours and then cool
https://i.imgur.com/NBWACDG.jpg

too hot .. to start over again
the cabin
https://i.imgur.com/OBAN9Q5.jpg

the door
https://i.imgur.com/xDw6WQv.jpg

sandpaper, paint and well .. it remains "apparent" is what I like least of the whole machine
https://i.imgur.com/Jx1hczS.jpg
https://i.imgur.com/QkX6xbT.jpg

And at this point I am, I still have to add details, less and less, of course, the driver is also ready, but that will be the last thing I teach, it will be the "icing on the cake"
https://i.imgur.com/HgKZz7O.jpg
https://i.imgur.com/vnTUiGl.jpg
https://i.imgur.com/hnk5FYF.jpg
https://i.imgur.com/nE2c5F5.jpg
https://i.imgur.com/O4g9hA0.jpg

and some test:

caterpillar load test:
https://youtu.be/Z-bA_rgCn94

brute force test:
https://youtu.be/Rbchu3ASgpU
https://youtu.be/8DVwKnUj0wg

and the first videos of the machine, (very clumsy operator, I know)

http://www.youtube.com/watch?v=LuKBsjKK0CU&t

http://www.youtube.com/watch?v=24i7c4hAa8U&t

http://www.youtube.com/watch?v=EJQvPJ-JAJc&t

some photos of the bucket (it is the largest that the machine mounts, 8m3)
https://i.imgur.com/xA5xAiB.jpg
https://i.imgur.com/6QxYhiP.jpg
https://i.imgur.com/hKY3Fbi.jpg

And a small mod for the radio, I use a taranis 9EX and it has a 2Ah NiMh battery but as it had been on the shelf for several years, when I needed the battery it was almost dead, it could not hold anything, so Instead of buying another battery packs, I have put an 8-element battery holder in it and put some rechargeable batteries with a higher capacity of 2.5Ah and if necessary, I could put even alkaline batteries
https://i.imgur.com/7c9UY0y.jpg
https://i.imgur.com/Lnpcqus.jpg

and to end i leave a pair of videos showing how i mod my radio to add 4D joystick in the original /M9 R sticks

in the first video show how the original 4D joystick works and how to disassemble
https://www.youtube.com/watch?v=JK_1E1wWyJk&ab_channel=tessenCNC

in the second (and third) video show how i install in the radio, and how to
https://www.youtube.com/watch?v=LGgXCIPU9nA&ab_channel=tessenCNC

best regards!

[frizzen]

Wow, that's such an amazing project with really beautiful machining!!!

[Zabco]

This is absolutely awesome workmanship! Talk about inspiring. Congratulations on creating such a masterpiece. Looking forward to seeing video of the completed model. Thank you so much for sharing your work process.

[Hemi1966]

It took me a while to go thru all the pictures, but it was well worth it, excellent work. You use many methods to make parts that I can only dream on, especially the wire EDM.

[Originalrob]

Wow !
What a beautiful piece of workmanship, I am just starting out and can only dream of making stuff like you can !
Congratulations on an amazing project ����

[Tgrzes]

Amazing fabrication throughout! Incredible detail.

[tessen]

Thank you very much for the comments and I am sorry if there is a bit of a mess with the photos, the forum gave me problems in the upload

Zabco in my last post there are links with videos showing the machine in operation, I have to fix paint damage, put light, vinyls, smoke effect, and add minor details, but in general is almost done

Originalrob,Hemi1966 I've always wanted to have a radio-controlled excavator, but what I really like are machines and building, that's why I've tried to do something more complicated (and I'm showing 7 years of development at one point)

best regards and merry christmas!