RC Truck and Construction

RC Truck and Construction (https://www.rctruckandconstruction.com/index.php)
-   Construction Equipment (https://www.rctruckandconstruction.com/forumdisplay.php?f=6)
-   -   1/10 Mining Dump Truck (https://www.rctruckandconstruction.com/showthread.php?t=13932)

bigpipespete 01-22-2022 08:02 PM

Re: 1/10 Mining Dump Truck
 
Simply, wow !

cooker2003 01-23-2022 12:24 AM

Re: 1/10 Mining Dump Truck
 
Real drum brakes even! Impressive!

pufferfish 01-23-2022 12:49 PM

Re: 1/10 Mining Dump Truck
 
Thanks.

I need two different actuators for my breaks, like the big ones I need a driving and a parking brake.

But i won't two bowden cables. Therefor i've made a central platfrom between the frame. Later truly invisible.

A simple sledge to hold a constant direction. left to the actuators . right to the drums.
https://blog.rb-fotos.de/wp-content/...z/img_5718.jpg

the testing arrangement was simple and ugly.
https://blog.rb-fotos.de/wp-content/...z/img_5719.jpg
that must be prettier.

to get a weldeable bowden tube in my tiny sizes was impossible. so I've bought

a really small tube stainless
https://blog.rb-fotos.de/wp-content/...z/img_5742.jpg

pufferfish 01-23-2022 01:20 PM

Re: 1/10 Mining Dump Truck
 
....
bending such a small tube :confused:
An inlay from 1mm brass rod was the solution
Bending worked wonderful smooth
https://blog.rb-fotos.de/wp-content/...z/img_5728.jpg
but i need not a ring but four 90° parts.
https://blog.rb-fotos.de/wp-content/...z/img_5735.jpg

https://blog.rb-fotos.de/wp-content/...z/img_5737.jpg

inner deburring with a small ball end mill
https://blog.rb-fotos.de/wp-content/...z/img_5740.jpg
and welding on the screw wich hold the axle onto the c-hub
to avoid length-changing while steering.
https://blog.rb-fotos.de/wp-content/...z/img_5744.jpg

On the other side, a servo and a small n20 gear motor has taken their place.
together with two end switches for the motor, they are the rest of the mechanics.
https://blog.rb-fotos.de/wp-content/...z/img_5752.jpg

A short clip of their work, you can see here

Originalrob 01-24-2022 08:02 AM

Re: 1/10 Mining Dump Truck
 
Wow what a great scratch build !

Keep up the good work !

Hemi1966 01-24-2022 09:44 AM

Re: 1/10 Mining Dump Truck
 
Looks like you got a Optimum milling machine, is that BF20 ?
Did you cut all the sheet metal parts yourself ?

And also, great work :)

pufferfish 01-24-2022 12:40 PM

Re: 1/10 Mining Dump Truck
 
thanks again.
Quote:

Originally Posted by Hemi1966 (Post 171725)
Looks like you got a Optimum milling machine, is that BF20 ?
Did you cut all the sheet metal parts yourself ?

yes. its a bf20l.
and yes. i buy simple sheets and cut them self. my tools are a simple lever shear, flex bandsaw, some bender and a old bosch belt sander.

I'm a programmer by trade, so i could use a cad and buy laser cutted metal, but i won't work with computers after the whole day on it.

------------------
Last complicated parts are the telescopic lift cylinders.

https://blog.rb-fotos.de/wp-content/...z/img_4052.jpg
They are located in the big slots inside the frame.
Big? When you plan and estimate the sizes of the cylinder, the slots gets smaller and smaller :eek:

Seldom I've planned so long for a single part. Maximum and Minimum Angles, posibilities in machining, needed pressure to lift, sizes of the cylinder, rods and pistons and so. So much interdependent variables. :eek: I think, the fifth or sixth plan was the base for the first try.
I'll show you the second and last attempt :cool:

Hemi1966 01-24-2022 01:01 PM

Re: 1/10 Mining Dump Truck
 
Quote:

Originally Posted by pufferfish (Post 171727)
thanks again.


yes. its a bf20l.
and yes. i buy simple sheets and cut them self. my tools are a simple lever shear, flex bandsaw, some bender and a old bosch belt sander.

I'm a programmer by trade, so i could use a cad and buy laser cutted metal, but i won't work with computers after the whole day on it.

I thought the parts ware laser cut:)
I also have a BF20L that I converted to cnc , and I love it.

pufferfish 01-24-2022 02:11 PM

Re: 1/10 Mining Dump Truck
 
Well, after planning, the doing was a simple turning job

the guard rings are very small.
https://blog.rb-fotos.de/wp-content/...z/img_5607.jpg

seals are simple o-rings
https://blog.rb-fotos.de/wp-content/...z/img_5624.jpg

https://blog.rb-fotos.de/wp-content/...z/img_5626.jpg

big thread on the lid
https://blog.rb-fotos.de/wp-content/...z/img_5637.jpg

https://blog.rb-fotos.de/wp-content/...z/img_5639.jpg

https://blog.rb-fotos.de/wp-content/...z/img_5638.jpg

Fits perfect
https://blog.rb-fotos.de/wp-content/...z/img_5648.jpg

https://blog.rb-fotos.de/wp-content/...z/img_5649.jpg

https://blog.rb-fotos.de/wp-content/...z/img_5650.jpg

To lock the trough in open state for working on the hydraulics are at the big ones simple Us wich will hook on the back plate.

So do i
https://blog.rb-fotos.de/wp-content/...z/img_5679.jpg

Works
https://blog.rb-fotos.de/wp-content/...z/img_5683.jpg

Here you can see the last part of the cylinder with the flange. both from stainless to be able to weld. All other parts are from aluminium.

https://blog.rb-fotos.de/wp-content/...z/img_5916.jpg

the original have a maximum tilt angle of 53°.

almost :D
https://blog.rb-fotos.de/wp-content/...z/img_5680.jpg


later, after some test and measuring, i'm able to raise the size of the guard-rings. that brings a lot more stability.

pufferfish 01-25-2022 04:03 PM

Re: 1/10 Mining Dump Truck
 
Last post so far :bounce:

The exciting parts are done. Followed by things i have to do.

Hydraulic arrangement
https://blog.rb-fotos.de/wp-content/...z/img_5381.jpg

Many stainless sheets .3mm or .5 mm are cut, bend and welded to build the front.

https://blog.rb-fotos.de/wp-content/...z/img_5769.jpg

The bonnet is parted.
https://blog.rb-fotos.de/wp-content/...z/img_5771.jpg

https://blog.rb-fotos.de/wp-content/...z/img_5790.jpg

https://blog.rb-fotos.de/wp-content/...z/img_5785.jpg


on the back the massive airfilters
https://blog.rb-fotos.de/wp-content/...img_5806-2.jpg

tank
https://blog.rb-fotos.de/wp-content/...z/img_5812.jpg

battery tray
https://blog.rb-fotos.de/wp-content/...z/img_5814.jpg

after all the yellow some belaz blue

https://blog.rb-fotos.de/wp-content/...z/img_5884.jpg

and, tradional for me, the last thing: The cabin

https://blog.rb-fotos.de/wp-content/...z/img_5915.jpg





Et voila. Almost completed:bounce:

https://blog.rb-fotos.de/wp-content/...z/img_5918.jpg


Actually the one and only clip with my Belaz 7540 Mining Dumper working.

(Don't mind the unscale Loader :D )

Here it is


Now it's waiting for Spring to make a better clip and get some interieur into to the cabin.



Thanks for your Interest.

Maybe you'll watching my thread to build a more scale Loader :D

bigpipespete 01-25-2022 06:12 PM

Re: 1/10 Mining Dump Truck
 
Yours looks better than the real thing. Fantastic build.

Tgrzes 01-25-2022 07:15 PM

Re: 1/10 Mining Dump Truck
 
Nicely done! I always enjoy the imagination and skill involved with scratch builds.

frizzen 01-25-2022 09:25 PM

Re: 1/10 Mining Dump Truck
 
Beautiful machining work on everything!

Even the latches for engine cowls are amazing

pufferfish 07-16-2022 02:29 AM

Re: 1/10 Mining Dump Truck
 
Hi,

A usual method to move an excavator is to use a dumper and transport

pufferfish 11-13-2022 12:53 PM

Re: 1/10 Mining Dump Truck
 
Hi there,

some months later......
(during them i've built a 1/10 stainless steel land rover forward control)
....... the dumper needs an improvement of his drive train.
fully loaded it was a bit weak.
After a detail research i've found some issues. The rims are able to get contact with the axle and the motors don't get enough power to work properly.

First attempt to seperate rims and axles are a gliding tape glued onto the axles. Unfortunately works is not good.

Second attempt are these brass rings with the function of very small bearings.

https://blog.rb-fotos.de/wp-content/...z/img_9068.jpg

https://blog.rb-fotos.de/wp-content/...z/img_9069.jpg

After a couple of new escs i've found the working solution with seperate hobbywing 1080 for each motor.

Now the dumper can work in soft and hilly terrain too.

https://blog.rb-fotos.de/wp-content/...z/img_9072.jpg

traces in the sand (including a footstep in size 16)
https://blog.rb-fotos.de/wp-content/...z/img_9076.jpg

frizzen 11-16-2022 06:26 PM

Re: 1/10 Mining Dump Truck
 
That came out really awesome!

Your mining truck is a beast

Krewmember 11-17-2022 05:45 PM

Re: 1/10 Mining Dump Truck
 
Impressive work, I really like the working drum brakes.


-Shawn-


All times are GMT -4. The time now is 07:11 PM.

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.