1/10 Caterpillar D8T Build (3D Printed)

[Orange RC Works]

Just started on this very challenging build..

https://i.ibb.co/TRQgksr/CAD-03.jpg (https://ibb.co/q9Hrdvx) https://i.ibb.co/B45TgD6/Untitled.jpg (https://imgbb.com/)

https://i.ibb.co/mGKYncv/20230117-025401.jpg (https://ibb.co/BtJ7hC4) https://i.ibb.co/rt9nNM4/20230119-014912.jpg (https://ibb.co/N3RwbpZ)

[Orange RC Works]

steering and throttle program mix on my Radiolink RC6GS pistol radio...
https://youtu.be/knUPPHZKtQg

[frizzen]

That looks like a really good start!

Which 90 deg. gearmotors are you using for this?
Any idea how much force those tracks can hold before something goes pop?

[Orange RC Works]

That looks like a really good start!

Which 90 deg. gearmotors are you using for this?
Any idea how much force those tracks can hold before something goes pop?

This one, 12v-65rpm, quite big and heavy too. 8mm shafts and 4mm mounting screws...
well, this build will be mostly for show and for the pleasure of seeing it run, so yeah, dont really know whats the max stress the tracks can hold, lets just see how long till the first one explodes...

https://i.ibb.co/8m0BgJj/12v-65rpm-gear-motor.png (https://ibb.co/x2DsqyM)

[frizzen]

Thank you, i thought it looked like that's what you were using. I'd been considering those for a project. Any idea what size motors those use?

Sorry, I wasn't sure if you were planning to try staying plastic track, or prototype a few then send it off later to be printed in metal.

Can't wait to see this one come together

[Orange RC Works]

Thank you, i thought it looked like that's what you were using. I'd been considering those for a project. Any idea what size motors those use?

Sorry, I wasn't sure if you were planning to try staying plastic track, or prototype a few then send it off later to be printed in metal.

Can't wait to see this one come together

Did some research and found out the motors are permanent magnet motors 31ZY, might be 4000 rpm, 3mm motor shafts with screw gear installed, 12v at 65 rpm output on the gearbox shaft ... I used 2s lipo batts at first but the 7.2 volts seem to be underpowered, i changed to 3s and they seem to work well at 11.1 volts since the motors are rated at 12 volts. Im tempted to try a 4s pack but im afraid it might burn the motor out.

[Orange RC Works]

Rolling chassis is ready for a test run...

https://i.ibb.co/Dww8pxJ/20230124-021056.jpg (https://ibb.co/JrryQf1) https://i.ibb.co/D7LnK2m/20230124-021102.jpg (https://ibb.co/P5t8CHJ)

https://i.ibb.co/hDQZ8Mm/20230124-021111.jpg (https://ibb.co/jg0W45r) https://i.ibb.co/80LDXXS/20230124-021227.jpg (https://ibb.co/VtcW33P)

and the motor test...

https://youtu.be/Cv8Vz40k5Qg

[jerry56]

Wow your really moving along on this one.....looks like the drive train test was a success speed look pretty good....

[Orange RC Works]

Wow your really moving along on this one.....looks like the drive train test was a success speed look pretty good....

At first i thought it was too slow and underpowered with a couple of 2S lipo batts, but when i changed to a 3S set, it changed dramatically.... and i think the speed kind of matches the full scale ones at full throttle... i had it climb a 20 degree incline and it climbed pretty good until the tracks starts sliding on a smooth wood surface lol... i think im ok with the power system and it did not get hot at all (motor & esc)... so i call it a success. thanks

[frizzen]

Yeah good call, 3s makes more sence for the 12v motors.
3.7v, 7.4v, 11.1v

Your prints are looking really nice

[Orange RC Works]

Latest update on this build... im now designing the actuators using a small gearmotor with an M3 lead shaft at 65 rpm, this will be the actuator to tilt the rippers

https://i.ibb.co/dBS5kdt/20230201-234903.jpg (https://ibb.co/9nJryFh) https://i.ibb.co/8N03P3c/20230201-234933.jpg (https://ibb.co/S5PTVTr)

https://i.ibb.co/XXtKVXn/20230201-235004.jpg (https://ibb.co/7vKZbv3) https://i.ibb.co/3zr7xww/20230202-000429.jpg (https://ibb.co/xHCDnyy)

https://i.ibb.co/kc6NpmH/20230202-000459.jpg (https://ibb.co/6sJj2Xn) https://i.ibb.co/fGKVF9Q/20230202-000525.jpg (https://ibb.co/wrbZg7Y)

[Orange RC Works]

Yeah good call, 3s makes more sence for the 12v motors.
3.7v, 7.4v, 11.1v

Your prints are looking really nice

Thanks, I actually do post print processing to smoothen the edges and re drill the holes etc... the bottom of the print usually flare out on my ender 3 so i have to file it off more so when i have to join two parts together, i just hate cleaning up material removed from the prints lol...

[Orange RC Works]

Gearmotor actuators for the rippers is done and installed...

https://i.ibb.co/mc929KV/20230204-220556.jpg (https://ibb.co/QKPTPV3)

test vidoes...

https://youtu.be/BsQvf6rvS60

https://youtu.be/zY9LS37m5LU

[jerry56]

Are they just N20 motors....

[ddmckee54]

It looks like you are controlling the motors with just a toggle switch. Do you have any end limits on your actuators?

If you have the limits installed, I'd be very interested in seeing how you pulled that off. I've got several projects in the works where end limits on the actuators would be nice to have, but as usual with most RC projects, space is at a premium. Ten pounds in a five pound sack is a good description for a lot of projects.

You said that you are using the M3 version of the gearbox with the threaded rod output as your actuator screw. What are you using for the nut? I know you've got this type of actuator on your powered ramps, but they won't get used as much as the ripper will, or the blade if you use the same type of actuator there. Any concerns about lubrication and/or wear of the screw/nut?

Don

[Orange RC Works]

It looks like you are controlling the motors with just a toggle switch. Do you have any end limits on your actuators?

If you have the limits installed, I'd be very interested in seeing how you pulled that off. I've got several projects in the works where end limits on the actuators would be nice to have, but as usual with most RC projects, space is at a premium. Ten pounds in a five pound sack is a good description for a lot of projects.

You said that you are using the M3 version of the gearbox with the threaded rod output as your actuator screw. What are you using for the nut? I know you've got this type of actuator on your powered ramps, but they won't get used as much as the ripper will, or the blade if you use the same type of actuator there. Any concerns about lubrication and/or wear of the screw/nut?

Don

I had to play around with the transmitter to get my settings just the way i wanted it, for the end point (EPA) of both ch 5 & 6, i think its just 20% both ways, and then i had to adjust the subtrim to make the servo horns be inline with the toggle switch... on the other hand, if you are asking about the end point where the motor reaches the longest or the shortest, i just play by feel and sound also, had to wait to hear till the motor starts to slow down and then hit the controls to center the servo, i use the on-off-on toggle switch so it stays when i flick the tx switch.. i was thinking of installing limit switches but with all the wires and switches, i wont look realistic anymore, not worried about cooling or lubrication either coz you only get to use it a few seconds or maybe minutes at a time to adjust the ripper, so it is fully enclosed as you can see...i use a regular m3 nut inserted at the bottom of the actuator rod, but 60rpm at the lead shaft and the M3 threads, it is kinda slow so i ordered the 200rpm ones and see if they will work better. Now, on the blade actuators, i will have to use a faster gearmotor and open the case a bit to have some bit of cooling and some grease on the lead shaft.. also since the 2 actuators will move independently, i may have to use ch 3 & 4 for each

[Orange RC Works]

Are they just N20 motors....

Not really familiar with the motor type...but this is it...they are small..

https://i.ibb.co/HCg6VdF/2023-02-06-14-45-33-DC-6-V-Gear-Motor-High-Torque-Electric-Motor-with-Long-M3-55-MM-Screw-Thread-Out.jpg (https://ibb.co/w76VRs0)

[jerry56]

Yeah those are n20s.. I have some like that of various rpm's so I can make my own cylinders like you did... been kicking the idea around for a while now just haven't started on them..
Did you print the inside of the cylinder to fit the nut or just press it in.... I have some of the brass press in threads I want to try too....

[Orange RC Works]

Yeah those are n20s.. I have some like that of various rpm's so I can make my own cylinders like you did... been kicking the idea around for a while now just haven't started on them..
Did you print the inside of the cylinder to fit the nut or just press it in.... I have some of the brass press in threads I want to try too....

all parts are printed...and the nut has a slot at one end of the rod where i insert a nut... these are the complete parts of the longer cylinder...

https://i.ibb.co/5xdVMhN/cylinder-1.jpg (https://ibb.co/prgp0jt)

[jerry56]

I see.....
The rod, a cylinder in a cylinder... so you don't see the rotation... That was my thought...
It looks good in 1/10 I'm not sure if I can get everything small enough to look right in 1/16.
I might have to just deal with seeing one cylinder rotating....
But thank you for showing the exploded view it helps a lot...

[Orange RC Works]

I see.....
The rod, a cylinder in a cylinder... so you don't see the rotation... That was my thought...
It looks good in 1/10 I'm not sure if I can get everything small enough to look right in 1/16.
I might have to just deal with seeing one cylinder rotating....
But thank you for showing the exploded view it helps a lot...

Yup, the lead shaft is not exposed... so far this has been the smallest gearmotor i could find which works great in 10th scale... not sure if there is another one smaller than this.

[ddmckee54]

I found some 10mm motors with planetary gearboxes that I will be using to extend the stabilizers on my Manitou 2150, I think they are 300rpm. (There are listings similar to the gearboxes I got on Ebay now, just look for 10mm gearbox.) Using an M3 threaded rod as the screw they would move at about 2.5mm/second. The stabilizers have about a 70-80mm travel so I figure it'll take about 20-30 seconds to extend/retract the stabilizers. It works in the 3D model anyway - real-life might be another story.

I originally planned on driving the motor with a 10A ESC, but that would use 8 channels just for the stabilizers. I'm currently looking into auto-leveling using an Arduino and a gyro chip. I had planned on the Arduino running the lights anyway so I might as well make it earn it's keep. But that's a whole 'nuther rabbit hole.

[Orange RC Works]

Blade is ready....
https://i.ibb.co/jLhR7XY/20230213-021652.jpg (https://ibb.co/RC2yLwK) https://i.ibb.co/qpL3bBr/20230213-021704.jpg (https://ibb.co/89nLFM7)

[jerry56]

That is beautiful... You have got some great CAD skills

[Orange RC Works]

That is beautiful... You have got some great CAD skills

Thanks, took me a while to figure out the shape of the curved sides and i settled with a section of a sphere chopped off a certain distance from the center. This thing is huge and impossible to fit in my 1st gen ender 3 so i had to print in sections... 1 of the 3 sections took 20 hrs to print... 3d printing is truly a hit or miss thing lol...

https://i.ibb.co/BBbwPLk/CAT-D8-T-blade-CAD.jpg (https://ibb.co/GRyFJ7m)

[Orange RC Works]

Build update for today... almost done with the blade, just waiting for blade swing cylinder to finish printing so i can fix the blade and it doesnt swing from side to side...

Here is my CAD model/rendering... and the printed/assembled parts...

https://i.ibb.co/qM1Xm4p/BUILD-UPDATE-02-18-2023.jpg (https://ibb.co/tMCkYND) https://i.ibb.co/K55FGs2/20230217-235731.jpg (https://ibb.co/9ppsv4b)

https://i.ibb.co/rs0dsZX/20230217-235819.jpg (https://ibb.co/xHLFHMr) https://i.ibb.co/2gDdVgp/20230217-235855.jpg (https://ibb.co/LnL1jns)

[Krewmember]

Impressive work. I'm looking forward to seeing future updates :popcorn:

Did you add any weight to the blade?



-Shawn-

[Orange RC Works]

Impressive work. I'm looking forward to seeing future updates :popcorn:

Did you add any weight to the blade?



-Shawn-

Im thinking of using a 1 1/2" x 1/8" thk flat bar as blade tips, cut in sections just like the real ones, that would be the weight on the blade...

Anyway, another update with the installation of the headlight mount and the blade swing cylinder, (unpowered)..

https://i.ibb.co/ftBshxK/20230219-173523.jpg (https://ibb.co/3WGnDC8) https://i.ibb.co/dgxcF6w/20230219-173608.jpg (https://ibb.co/C2Dtgv3)

https://i.ibb.co/wMTZjCx/20230219-173548.jpg (https://ibb.co/nzTqtf5) https://i.ibb.co/RjSTgDB/20230219-173602.jpg (https://ibb.co/sWP9gV6)

[Orange RC Works]

Latest build update....hood and ROLPS is done...now working on the 3d model of the cab and fuel tank...

https://i.ibb.co/tbwFcpZ/20230226-235517.jpg (https://ibb.co/jL9sGkV) https://i.ibb.co/HtzPrR0/20230226-235653.jpg (https://ibb.co/Jv7pz8N)

https://i.ibb.co/yP7CMS3/20230226-235438.jpg (https://ibb.co/W5jXdtT) https://i.ibb.co/jD4c6py/20230226-235616.jpg (https://ibb.co/kXcRHd4)

[jerry56]

I can't even begin to wrap my head around the work you must have put into this to achieve that much detail.... :jaw:


I couldn't do it....

[Orange RC Works]

I can't even begin to wrap my head around the work you must have put into this to achieve that much detail.... :jaw:


I couldn't do it....

Thanks, i do like to challenge myself a little bit and it gives me so much satisfaction when i get to figure out a shape in autocad 3d considering that i have to manipulate the WCS to be able to model something working only with basic shapes like cylinder, box, torus, sphere, cone, etc.

[frizzen]

That's really an amazing looking build!

It will be interesting when you're done to estimate how many hours you think you've probably got into the cad modelling, vs the parts prep and building

Can't wait to see this ready to bulldoze stuff.

[Orange RC Works]

That's really an amazing looking build!

It will be interesting when you're done to estimate how many hours you think you've probably got into the cad modelling, vs the parts prep and building

Can't wait to see this ready to bulldoze stuff.

Thanks, this would probably end up like a demo build, not sure of the power train being able to push dirt but when i tested it, it can pretty much climb a 30 degree incline but lets see... i can say 3d modeling really takes more time than printing and assembling but im excited to see how it would look when finished and painted.... ill keep you guys posted...cheers.

[Orange RC Works]

Update on the build... done with the cab deck, fuel tank, hydraulic oil tank, etc... time to design and build the cab...

https://i.ibb.co/2KkNqPr/20230305-125018.jpg (https://ibb.co/4NVdWML) https://i.ibb.co/SsBtHyC/20230305-124751.jpg (https://ibb.co/3rcpVdZ)

https://i.ibb.co/QPNgKgv/20230305-124848.jpg (https://ibb.co/v3PFjF4) https://i.ibb.co/Fn8dYS3/20230305-124918.jpg (https://ibb.co/YbfVdzQ)

https://i.ibb.co/Y0cLQRk/20230305-125028.jpg (https://ibb.co/nP7Lmgc) https://i.ibb.co/zQWJJ2Z/20230305-124802.jpg (https://ibb.co/HBLddPq)

[Orange RC Works]

Cab is done...cab interior is next...

https://i.ibb.co/PNsJf1S/20230323-223230.jpg (https://ibb.co/s2pcMsB) https://i.ibb.co/xzF4jb2/20230323-223350.jpg (https://ibb.co/TPWC8Gw)

https://i.ibb.co/2FbgKqZ/20230323-223439.jpg (https://ibb.co/cymDTJY) https://i.ibb.co/rFqm5Vt/20230323-223507.jpg (https://ibb.co/gmQ3tx7)

https://i.ibb.co/N6QMBVL/20230323-223520.jpg (https://ibb.co/5WtPHM5) https://i.ibb.co/k1xWkgY/20230323-223538.jpg (https://ibb.co/16LwhfH)

https://i.ibb.co/q9cnbKP/20230323-223631.jpg (https://ibb.co/1KPnH1w) https://i.ibb.co/yyJLy9J/20230323-223726.jpg (https://ibb.co/mq7Qqj7)

https://i.ibb.co/XpWV1zP/20230323-223646.jpg (https://ibb.co/7VSbPGD)

[Orange RC Works]

test run today....

https://youtu.be/VJCjNo2JGh0

[jerry56]

WooHoo... all the engineering worked...this is going to be killer when you get done...

[Lil Giants]

Quite amazing what can be accomplished with 3D printing in modern times, looks fantastic! Have you kept a separate tally of hrs in design & print?

[Orange RC Works]

WooHoo... all the engineering worked...this is going to be killer when you get done...

thanks... i need to do another test video to show movement of the blade and ripper...

[Orange RC Works]

Quite amazing what can be accomplished with 3D printing in modern times, looks fantastic! Have you kept a separate tally of hrs in design & print?

thanks, just a rough estimate would be around 220 hrs for design and maybe half of that for the prints... i have used 4 spools more or less since i started this build.

[frizzen]

Great video, you seem to have really nailed the movements!

[Orange RC Works]

Great video, you seem to have really nailed the movements!

thanks, it was a challenge at first trying to figure out how to program my 6-channel Radiolink pistol radio to do the track movement, also, it would have been better if there are 2 more channels available but i just have to make use of the 2 channel with toggle switches, and 1 with a dial that would work as a toggle switch too. channel 4 is unusable since it is normally on and only push button to turn off so not for the up-down movement of a cylinder... i may have to get a new radio that is at least 10 channels for my upcoming projects.

[jerry56]

Not sure how you feel about radios but a flysky i6x is 10 channels... I like them for my D5 and delta loader because I can mix the tracks onto one stick.. The i6s is also 10 channels I like it for my excavator and other track driven cranes or drag lines because it has 2 dials on each corner of the radio to use for the tracks leaving the sticks free for boom up/down, cable in/out,slew,etc..

[Orange RC Works]

Not sure how you feel about radios but a flysky i6x is 10 channels... I like them for my D5 and delta loader because I can mix the tracks onto one stick.. The i6s is also 10 channels I like it for my excavator and other track driven cranes or drag lines because it has 2 dials on each corner of the radio to use for the tracks leaving the sticks free for boom up/down, cable in/out,slew,etc..

I dont have preference on radios, i have a flysky GT3B 3-channel radio for my other crawlers and i like it...if its cheap and works just fine, im on it lol... i never thought that i6X has 10 channels which will be great for my projects... also, if the receivers are not so expensive, then im going for it. thanks for the heads up

[jerry56]

the radios are about $60 on Amazon,
https://www.amazon.com/dp/B07Z9YNP7S/?coliid=I11VJIIOQ430OE&colid=X118RPBMCW6I&psc=1&ref_=lv_ov_lig_dp_it
the receivers 6 channel is $18
https://www.amazon.com/dp/B07Z9YNP7S/?coliid=I11VJIIOQ430OE&colid=X118RPBMCW6I&psc=1&ref_=lv_ov_lig_dp_it
and the 10 channel is $21
https://www.amazon.com/dp/B0B74H861D/ref=sspa_dk_detail_9?psc=1&pd_rd_i=B0B74H861D&pd_rd_w=GaiQr&content-id=amzn1.sym.3309c9d3-bf37-499a-888c-9ce693c3483f&pf_rd_p=3309c9d3-bf37-499a-888c-9ce693c3483f&pf_rd_r=WWEB4QNH038CSMW0ETW2&pd_rd_wg=U9nzu&pd_rd_r=e9c5714b-1967-4d0e-91b7-d467d053bd65&s=toys-and-games&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWxfdGhlbWF0aWM&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyU1ZDWU1LTTgwWko2J mVuY3J5cHRlZElkPUEwMjYzMzg0R1hWSTlMR0pQVU0xJmVuY3J 5cHRlZEFkSWQ9QTA1MDk1OTFES0FZVlFaTTM2OTEmd2lkZ2V0T mFtZT1zcF9kZXRhaWxfdGhlbWF0aWMmYWN0aW9uPWNsaWNrUmV kaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl

and this 6 channel is$18
https://www.amazon.com/dp/B07D21273Y/ref=sspa_dk_detail_8?psc=1&pd_rd_i=B07D21273Y&pd_rd_w=GaiQr&content-id=amzn1.sym.3309c9d3-bf37-499a-888c-9ce693c3483f&pf_rd_p=3309c9d3-bf37-499a-888c-9ce693c3483f&pf_rd_r=WWEB4QNH038CSMW0ETW2&pd_rd_wg=U9nzu&pd_rd_r=e9c5714b-1967-4d0e-91b7-d467d053bd65&s=toys-and-games&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWxfdGhlbWF0aWM&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyU1ZDWU1LTTgwWko2J mVuY3J5cHRlZElkPUEwMjYzMzg0R1hWSTlMR0pQVU0xJmVuY3J 5cHRlZEFkSWQ9QTAxMzA2MzMyMVhKSlpPMTlUODRBJndpZGdld E5hbWU9c3BfZGV0YWlsX3RoZW1hdGljJmFjdGlvbj1jbGlja1J lZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
If you look around even on amazon you might find them a few dollars cheaper

[Orange RC Works]

Mock up of the cab interior...

https://i.ibb.co/q7chc3x/20230913-215505.jpg (https://ibb.co/FmycyLn) https://i.ibb.co/0jWQpqh/20230913-215540.jpg (https://ibb.co/Z6wNRdW)

https://i.ibb.co/DQ6VFmQ/20230913-222022.jpg (https://ibb.co/WfdxX7f) https://i.ibb.co/WKJ9wfB/20230913-215559.jpg (https://ibb.co/GPSwLRC)

[ddmckee54]

At first glance I thought those were resin printed parts, and thought that you'd gotten a resin printer. Then I zoomed in on them and saw the layer lines from a filament printer. That's some damned fine work. I can see that the cab is made of of a LOT of separate pieces. What's your nozzle size and layer thickness? I've printed pieces for models before, but nothing that finicky.

How many hours did it take you to model the cab parts? I may have asked this before, but what software do you use?

Again, NICE WORK!!

[Orange RC Works]

At first glance I thought those were resin printed parts, and thought that you'd gotten a resin printer. Then I zoomed in on them and saw the layer lines from a filament printer. That's some damned fine work. I can see that the cab is made of of a LOT of separate pieces. What's your nozzle size and layer thickness? I've printed pieces for models before, but nothing that finicky.

How many hours did it take you to model the cab parts? I may have asked this before, but what software do you use?

Again, NICE WORK!!

Thanks, i think i used a mix of 0.16 and 0.20 layers... nozzle is still stock.... 0.16 for the really tiny pieces and 0.20 for the rest...took me a while to get this done as I have been busy riding my MTB during the summer... but if I had to do it full time, maybe 10-12 hrs more or less... i dont have any other references except those i can find online and its a mix of different cabs.... its all guestimate i would say...I only use autocad...and cura for slicing...

[jerry56]

Holy Cow that level of detail just boggles my mind....

[Orange RC Works]

Inside of the engine bay where the cylinder actuators, smoke machine and receiver are placed...

https://i.ibb.co/wCc8W0N/20231027-195322.jpg (https://ibb.co/hHYrW7R) https://i.ibb.co/7NLYthb/20231027-195340.jpg (https://ibb.co/Qjtbv0X)

[Orange RC Works]

Testing the smoke machine.... water based... cold smoke

https://www.youtube.com/shorts/QmNWKqW5AqU

https://www.youtube.com/shorts/bojNiLOlpfM

[Orange RC Works]

This is the 3D model of the cab interior...

https://i.ibb.co/HVb6qqF/CAB-02.jpg (https://ibb.co/nbY9jjg) https://i.ibb.co/pwyJ0RP/CAB-06.jpg (https://ibb.co/JtQ5Byd)

https://i.ibb.co/nwHdJwP/CAB-01.jpg (https://ibb.co/b6Sw96b) https://i.ibb.co/wMPTThQ/CAB-07.jpg (https://ibb.co/dGVSS4p)

[Orange RC Works]

cab interior parts for printing...

https://i.ibb.co/4fx5gz3/CAB-07.jpg (https://ibb.co/cvd7X0V) https://i.ibb.co/fkHgkgr/CAB-08.jpg (https://ibb.co/m94j9jh)

[ddmckee54]

Thanks, i think i used a mix of 0.16 and 0.20 layers... nozzle is still stock.... 0.16 for the really tiny pieces and 0.20 for the rest.
You say your nozzle is still stock, is that a 0.4mm nozzle or something smaller?

[Orange RC Works]

You say your nozzle is still stock, is that a 0.4mm nozzle or something smaller?

yup, still 0.4 nozzle...

[ddmckee54]

I can see I'm going to have to crack the whip on my printers and not accept any more shoddy work from them.

I normally print at a 0.25mm layer height but I have printed a couple of prints at 0.1mm, the amount of detail that an FDM printer is capable of at that layer height is amazing.

I usually print at 50-60mm/s, what do you set your print speed to for these detail parts?

[Orange RC Works]

I can see I'm going to have to crack the whip on my printers and not accept any more shoddy work from them.

I normally print at a 0.25mm layer height but I have printed a couple of prints at 0.1mm, the amount of detail that an FDM printer is capable of at that layer height is amazing.

I usually print at 50-60mm/s, what do you set your print speed to for these detail parts?

i never messed up with a lot of the stock settings, i believe it is running at 50mm/sec, i mostly print at 0.20 layers, 0.16 if i want better details and smaller parts and 0.28 for rough parts (internal) 100% infill.... anyway, im thinking of putting a reversing sound for this dozer but cant seem to find any reference, i have seen a couple of videos of some guy converting a bruder wheel loader to RC and he got a reversing sound installed on it, but no info whatsoever... if you happen to know something pls let me know. thanks

[jerry56]

Thanks for the hints on the printer settings....most of what I print are just brackets and stuff, but good to know stuff right there...
I'd also like to fine a back-up horn.... just the horn I don't need the engine sounds...

[ddmckee54]

Have you checked the Arduino forums? Odds are good that somebody has already posted a How-to on how to do it.

[Orange RC Works]

Have you checked the Arduino forums? Odds are good that somebody has already posted a How-to on how to do it.

I did, but unfortunately, i got confused even more, i guess electronics is not really my thing lol.... but i was able to do it, using a servo plugged in to the throttle channel with a wye harness, then a cam disc pushing a limit switch to turn on and off a piezo intermittent alarm powered thru a spare channel of the receiver.

[Orange RC Works]

https://i.ibb.co/b3xFwpL/20231123-010553.jpg (https://ibb.co/kypJbY0) https://i.ibb.co/VLQBf5X/20231123-010606.jpg (https://ibb.co/cyCT4Vz)

[Orange RC Works]

Here's a video of my reversing alarm.

https://youtu.be/VIv8aKlfrZo?si=RYaSmOFCmNyuWr0l

[Orange RC Works]

Finally 99% done.... except the plexiglass windows and windshield....

https://i.ibb.co/ngSfjQR/20231123-012556.jpg (https://ibb.co/Ssp0BVJ) https://i.ibb.co/BL2F74h/20231123-012614.jpg (https://ibb.co/sj9zD5T)

https://i.ibb.co/PmKL96H/20231123-012634.jpg (https://ibb.co/w0Vkwzm) https://i.ibb.co/CbxDx5j/20231123-012705.jpg (https://ibb.co/gSshsM0)

https://i.ibb.co/DD4shyg/20231123-012717.jpg (https://ibb.co/svjknGJ) https://i.ibb.co/6NWn2zW/20231123-012740.jpg (https://ibb.co/JCsBNVs)

https://i.ibb.co/wCBGjX6/20231123-012757.jpg (https://ibb.co/GknYNLP) https://i.ibb.co/zfpsY2g/20231123-012811.jpg (https://ibb.co/LpmSWgy)

[Orange RC Works]

test run...

https://youtu.be/J-29v8VGFls?si=SbNQCiFsIlaa2O8k

[jerry56]

What a beast.... are you going to paint it....
I wondered how you would do the back-up alarm, since you can't just come off one of the motors otherwise you would get a back-up alarm when you made a turn in one direction or the other... the servo switch is a slick idea...

[Orange RC Works]

What a beast.... are you going to paint it....
I wondered how you would do the back-up alarm, since you can't just come off one of the motors otherwise you would get a back-up alarm when you made a turn in one direction or the other... the servo switch is a slick idea...

Yep, i know that would happen since it is programmed to the TX to use both channels 1 and 2 for steering and throttle, I guess I just have to live with it, that would be the extent of my analytical skills to be able to come up with a solution to that problem. But I am going to definitely have it on my Oshkosh Truck too, for sure that system will work just fine considering that ch 2 is exclusive for throttle only. thanks
By the way, yep, it will get painted.