backlash mack3

[M250cnc]

I don't use it as I have ballscrews so I don't have to.

Phil

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[Jonathan]

I almost always use it. If, for instance, you're drilling an array of holes it will clearly make a difference to the accuracy - unless you're careful with the Gcode.
I've found in some instances it is of limited value since the backlash wont be a constant value.

Be careful with the velocity and 'shuttle accelaration' settings. The motors will loose steps with too low a setting for the latter, however to high a value will make the motion less smooth.

I don't use it as I have ballscrews so I don't have to.

Have you got two ballnuts preloaded on each screw then? Or just sufficiently low backlash to ignore it with one?

[M250cnc]

Have you got two ballnuts preloaded on each screw then? Or just sufficiently low backlash to ignore it with one?

Two ballnuts on the lathe single on the mill same amount of backlash on each 0.05mm

Phil