Question My 3DOF motion simulator

So I may have found a sweet hookup on 80/20 extrusion bars. Debating redoing the cockpit platform with that. Did some rough calculations and could shed at minimum 100lbs doing so. Any potential problems with that?

Whoop! Went to a local metal supplier/scrap yard this morning. They had tons of 80/20 extrusion for $2.50/lb got everything i needed for a little over $100. Talk about a score!

So I replaced one of my cytron motor shields. Exact same model as before. Wired it exactly the same as the old one. Turned pot to center in smc3 by hand and turned motor back on. Same settings in smc3 as I've always had. As soon as I turn it on the motor spins until pot hits max and turns off. Why is the motor turning in circles without any input when all I did was replace the motor board?

I was messing around with kp values and I think that fried the old board. Set kp back to 400 where it was. By settings procedures do to mean setting everything to 0 in smc3 and starting from there?

Ok should I just reload the smc3 code to the arduino? I never changed anything from the original download.

Thanks again! Got it working. Had to reverse the wires going to the motor. Also 3d modeled and printed new 50 tooth pot gear and pot motor mount. Same ones from simukit.com. would it be ok to post those .stl files? Those pot gears break pretty easily if you over tighten them. Im sure others here who have ordered from that site could use some replacements.

Thanks. The files are original, I just made them tonight. Please define unencumbered in terms of ownership. The pot gear has no markings but the pot mount does have simukit printed on the ones I bought from the site.

Awesome thanks for the clarification. I need to make a few sizing tweaks then I'll post them. I also made a custom lcd screen wheelbase mount that will work on any t series thrustmaster base that i will post as well.

Ok now I'm really stumped. It seems I fried another motor board after about an hour of game play. I checked Temps of both motor and board after every race. Board didn't heat up at all and motor was only 10 degrees above initial starting temp. What could be causing this? Smc3 kp is 400 and pmw max is 180. That seems pretty reasonable

This is the board. amazon.com/30A-Bi-directional-DC-Motor-Driver/dp/B01M4PXFBG rated up to 80A peak

How would I check that? Is that something I can measure or would that be in the specs? Here is the motor spec sheet. Also I don't know if this helps but the power light on the board still lights up but the 2 output lights do not.