Chassis for Tamiya track and wheel set (and gear box) and arduino by shadowbane 3d model
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Chassis for Tamiya track and wheel set (and gear box) and arduino by shadowbane

Chassis for Tamiya track and wheel set (and gear box) and arduino by shadowbane

by Thingiverse
Last crawled date: 3 years, 1 month ago
Removed the basically random mounting holes, in exchange for risers (printed separately and acetone welded in) in a pattern for holding an arduino mega, as well as 6 risers near the front for various things.
In the images, not all the risers are installed, and only one battery holder is installed.
Acetone welded two battery cases for 18650 batteries, one on each side, such that they sit primarily between the tracks. 2 acetone welded supports help keep the holders in place.
You can find instructions for acetone welding online. You can weld the risers on in whatever pattern you want, but there are insets for the patten I used which makes them more accurate and stronger. They are a very tight press fit.
When you put the battery boxes on, only overlap them on the chassis by about 1/16 inch. I also overlapped them slightly on one of the chassis "legs" to give one additional point of contact.

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