Nema 17 motor's. 2 of the small ones, 1 of the larger 84oz.in on my x axis. Mega and Ramps at 1/32. I got my DRV8825's turned to 0.7v. My setup draws about 2.5a average (no heated bed). It's a DIY build pretty solidly built usuing a mixture of steel,aluminum, and pine for the structure. I'm using lead screws and it's basically 100% custom other than the components needed to run it. Maybe I need to turn up the current? I spent a lot of time tuning it when I built it there is not much friction and the motors definitely should not be working hard at all. I'm thinking because I am using lead screws and it's built pretty solid it increases the resonance but I am still trying to reduce the noise and especially shuddering. I have messed around with firmware but can't get it running nearly as smooth as I would like.
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