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Re: 1/10 Mining Dump Truck
Simply, wow !
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Re: 1/10 Mining Dump Truck
Real drum brakes even! Impressive!
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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 |
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 |
Re: 1/10 Mining Dump Truck
Wow what a great scratch build !
Keep up the good work ! |
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 :) |
Re: 1/10 Mining Dump Truck
thanks again.
Quote:
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: |
Re: 1/10 Mining Dump Truck
Quote:
I also have a BF20L that I converted to cnc , and I love it. |
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 |
Re: 1/10 Mining Dump Truck
Yours looks better than the real thing. Fantastic build.
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Re: 1/10 Mining Dump Truck
Nicely done! I always enjoy the imagination and skill involved with scratch builds.
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Re: 1/10 Mining Dump Truck
Beautiful machining work on everything!
Even the latches for engine cowls are amazing |
Re: 1/10 Mining Dump Truck
Hi,
A usual method to move an excavator is to use a dumper and transport |
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 |
Re: 1/10 Mining Dump Truck
That came out really awesome!
Your mining truck is a beast |
Re: 1/10 Mining Dump Truck
Impressive work, I really like the working drum brakes.
-Shawn- |
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