Inconsistant dados

[andre]

I have a new prs alpha and things are going well.
However, when I am doing area clears for my dado's I am finding that if I do outside to in path,that the dado is around .01 wider than if I do an inside to out path. It is a noticable difference. Is this a common problem or am I the only one. Things are tightened down well so I should not be getting that kind of deflection.

[johnm]

Andre -

Gee... Off the top, have you checked your gantry bearing rollers to see that the rack is not being deflected during the cut? I was having trouble with sloppy Z cuts shortly after I purchased our machine and that's what did it. You could have the same trouble in X or Y... After you've run the machine for a while, you might want to check everything for snugness, just as a matter of course...

Are you machining along vector, or offsetting a cut? Does your bit diameter match what you have told the machine you're using? Either of these could give you some trouble.

My 2c - hope this helps...