Originally Posted by
Larst
Thanks for the advice on leadscrews. I have gone with 1/2" 10TPI 5 Start leadscrews on X and Y and a 3/8" screw on the Z. Should give decent speed with the 425 oz steppers. I am planning on building some dampeners to deal with resonance issues as this looks reasonably straightforward.
Cheers.
Run it awhile without the dampers to see if you really need them. I found that the 5 start lead screws and the Xylotex/425oz combination stayed below the rpm range where resonance begins. I eventually moved the 5 start lead screws to my latest steel machine build, but I had confirmed that it would improve the stalling situation on my 25x37 Solsylva machine.
I would also recommend the G540 to permanently get rid of resonance problems. They are worth the extra money versus going with the low cost drivers.
CarveOne
http://www.carveonecncwoodcraft.com