Originally Posted by
alexanderhendrickson
Thanks. While I'd like to believe they're junk and just ship it back, I've seen a lot of people that have straightened them successfully, and I'm not averse to doing so if needed. I measured deflection with a gauge, and at its worse in the center it appears to be about 15-18 thousandths of an inch. Which doesn't seem like a lot but when it gets spinning it swings like a jump rope. BUT, that is also without my ball nut actually attached to a carriage, so who knows if that could be cancelled out by a rigid carriage?
As far as the size, what does the diameter have to do with it? Is it the rigidity, or is it something else I'm missing? I'd been looking at using NEMA23, but now I'm looking more toward servo motors. OMC has the AC ones which are quite a bit more speedy, but it appears they also have some NEMA23 DC servo motors too. I'm guessing with enough torque those would work well.