Re: [CAD_CAM_EDM_DRO] Gaining steps somewhere

Gained pulses is nearly always associated with electrical noise. Are
you using differential encoders or single ended? Have you properly
sheilded the encoder wires. Are you running the high volt motor wires
parallel and in close proximity to the encoder wires. Do you have the
high volt motor wires running overtop of the servo amp?
David

alphawolf45 wrote:

> I just getting this cnc mill together..I note that after a series of 8
>rapid go's to 1. and slow downfeeds to -.500 I end up with the endmill
>being positive by nearly a 16th inch...This mill is using servo motors
>with encoders..Also Mach2 , Rutex drives and Campbell's breakout
>board..The encoder on that motor takes 20,000 pulses to move the Z axis
>one inch.I should think that was pretty high resolution.
> I discovered this circumstance while running a small engraving test
>program..I didnt look to see if it calls for absolute or incremental
>positioning but I think that hardly matters as this behavior isnt right
>irregardless.Anybody have an idea whats happening here?
> Steven
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