Can I Get More Torque?

[DW61]

I have bearing block at both ends, made out of MDF on my machine (it takes a milling machine to make a milling machine). I have roller skate bearing in the blocks with nuts holding them in place. The all-thread is ~36" between the bearings. I think this is why I am getting so much whip when the all-thread spins at 600 rpm.

DW61

[ger21]

Try pulling them tight between the bearings, and lock them in place to hold the tension. It might help a little, but you're probably just asking to much from the 1/4-20.

[radio-op]

I'm glad to hear of the positive improvement on your table DW61, as well as the discussion you sparked. I for one have 'designed' by the rule of "if it worked for him, should work for me." My first 'instinct' would have been to save for bigger motors, which in your case is the most costly route. The design trade-offs concerning steppers continues to surprise me.
Bill