im new to the diy CNC world, please assume i know nothing of controls, coding, etc. i wont take offense. im in the collecting phase at present but will soon begin a simple benchtop engraver run by gecko/mach3 to get my feet wet. the machines are necessary to insource my locally outsourced product line in order for us to move across country.
ive acquired what was formerly a twin pallet changer. id guess about 4x7' base with a 3x4' X axis table riding on surfaced train style rails with a large ballscrew, about 30" of travel. the X table accepts a pair of independant Tslot tables about 20" x 30" that i would put on linear rails/guides + ballscrews. sweet, an X and a pair of Ys. ballpark weight, 2500 give or take.
i will build a nice heavy bridge over the table for the Z axis, likely flanged square tube filled with a damping material and epoxied square at the joints, or even a skeletal structure sandwiched in steel plates and filled with concrete, almost like a safe. easy enough.
heres where i wrestle with myself. what to put on the bridge/fixed gantry thingy? single Zaxis spindle fixed in place, twin fixed spindles, single or twins on a linear axis? the cats meow would be two Z axis spindles on a common linear rail, driven by independant ball screws. taken a step further, one spindle could be on a standard Z axis slide table, the other could be a compounded "5 axis" type.
before i start spending money in either direction, i need to know how challenging its going to be to control all these ballscrews. is there any open source or reasonably priced software that can run 2 tables and 2 spindles on one machine from one PC?
feel free to beat this idea out of my head if its infact a bad one. thanks in advance for your time.