operation cnc

[wilfy]

from a neutral point of view with no experience just thinking about it logically. i'd want to reduce anything that could complicate things.. and to me that means running 1 motor even if that means on this axis you have to buy a big ass one to cope with it.

if your BoB/drivers are running 2 steppers on the same axis then you have 3 circuits there straight away that have room for error... the data comes along in 0's and 1's and all it takes is for a little interference on one driver circuit and one stepper didnt move as quick as the other.. bam your work is knackered and the machine is out of line....

now a single stepper has the same interference but this time the whole gantry didnt move.. only problem you have this time is take the wrecked piece of material shove where you like put a new piece down and start again as the machine is still straight


i'm not saying it wouldnt work.. and i have no doubt that yours works flawlessly jonathan, but my mind tells me to simplify to reduce the chance of error