Hi all, I need some oppinions.
I'm building a gantry-style router with a working area of 1x1 mtr. (40x40in) It's made out of a composition of steel and aluminium and I'm going to cut wood signs with it. I think I will call it Beaver-Overdrive
The gantry weights around 70 lbs. I want to drive it from each side with two 305oz steppers from HobbyCNC. Will I have better overall performance with a two-start screw over a single-start? The single-start is a trapezoidal 16x4 (~6TPI) and the two-start then have 8mm pitch (~3TPI).
I know that the precision is reduced by choosing a two-start, but speed is more preferred. I'm just a little concerned about the acceleration?
Please give me some inputs on what speed/acc. I can expect by choosing the one or the other? What would you choose?
Brian