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

[SteinHDan]

I started work on the upper frame and base:



All the parts are milled from 6mm 6082 aluminum.

The base is 10 mm less wide on all sides than the finished base will be. I'm planning on 3D printing parts that will go down to the same depth as this base plate, to try to avoid having to paint so much.




The upper frame is put together with two middle parts perpendicular to each other and that slot into the sides. This gives the upper frame support in all directions. The sides bolt together with two 110 mm long M6 hex bolts (not shown in the pictures).












The uper frame then goes onto the base. It will be fixed in place with an 20 x 20 x 2 mm aluminum angle bar, 310 mm long (not shown in the pictures).