Question Adding a 4th motor

ok, i just ordered a couple new ibt's so I will test swapping those out when they come in.
I will check when I get home from work the min and max values, but I feel like it was in the normal range, maybe 1-2. I will double check though.

The min max auto values for heave were around 1 or a little less.
I tried a few things tonight including running both the heave motor and the traction loss off the same psu. My idea was if BOTH motors stopped working I know it’s the psu tripping it’s max range. But that didn’t happen, the traction loss continued to work. So it can’t be the psu.

One thing I’m wondering is if it could be the fact that I’m running these 2 very different sized motors though the same arduino. Maybe the heave motor should be on its own arduino? Would that make a difference?

I thinik you might be onto something here @noorbeast because one thing I noticed when testing yesterday with SMC3 was that sometimes when I have the heave motor selected in the utility, the other motor (tractionloss) is moving and going out of range even though it shouldn't be activated at all.

This evening I am going to run the heave by itself and disconnect the traction loss completly from the arduino and see how it goes

I am so confused now. This evening I wired the heave motor by itself to the Arduino with two IBT controllers. I could tell both controllers were in play because they were both warm. But then I started getting this as you can see from the screenshot. it’s like there’s all kinds of noise now. I don’t know if maybe there’s an issue with the potentiometer. But you can also see points where the motor stops moving. This wasn’t happening before in Smc3. So I’m not sure what’s going on anymore.

Yeah I ordered 2 new ibts, a new potentiometer, a new psu (1000 w) and a new arduino board hahaha so with all those supplies I should be able to narrow it down.
I think I’m also going to try and make the motor arm shorter. Mines about an inch longer than the one in @noorbeast video above, so maybe that’s causing too much work on the motor and making all the components work too hard.