90 ton 1/14 metal excavator scratch build w/embedded PC

[RexRacer19]

Great idea using the smoke machine. The RC drift guys have been trying to use smoke generators for a while now with mixed results. I think it should work well for your application though since it doesn't require the volume of smoke that a car needs.

[SteinHDan]

Lately I've been working on designing and printing the house of the excavator. I want:
- To have quick access to the on/off switch, voltage meter and the sound volume control
- To have easy access to all the electronics inside the excavator house.

For the first item, I designed the lid above the control panel:





So that makes it easy to quickly turn the machine on/off or to change the sound volume.


But for getting access to everything, i wanted to be able to remove as much of the house as possible in just one piece. So I designed most of the body to be just one big piece that can removed by unscrewing four thumb screws from below. The exception is the cab and the thing on the front on the other side (whatever it's called, anyone knows? :-) ). This gives very good access to everything that's mounted on the upper structure base plate:




















The body attaches to the base plate with four thumb screws, one in each corner:







This body is much to big for my 3D printer, so I had to break it up into nine individual parts. And even each of them was almost to big for my machine.







The printing time for each of these is between 10-15 hours, so that means there's more than 100 hours of continuous printing in this body.









I'll add some photos of the parts and how they are connected together shortly.


Best regards,
Stein :-)