I fire up my router and do a ref all everything appears normal.

I jog an axis one inch and the spindle moves one inch. 

BUT, if I load a file then all three DROs move to a seemingly random location.  If I then move the spindle 1 or 2 inches the DRO only moves by some small amount, say .06 or something.

So if I try to move the Z axis 4 or 5 inches the Z hits the stop long before the Z axis DRO gets to 0.75in.

Anyone have any clues??

Thanks,
Don

Have you checked your native units are set to inches (assuming you are working in inches) ??
Is the GCode file you are loading using inch units ??

Tweakie.

Yes. That is one of the first things I thought of too.  But, the movement of the DRO has no relation to the movement of an axis.

Inches or MM makes no difference

Thanks for looking,
Don

BUT, if I load a file then all three DROs move to a seemingly random location.  If I then move the spindle 1 or 2 inches the DRO only moves by some small amount, say .06 or something.

Don,

What file are you loading ??
Does this happen with any file ??

Tweakie.

This sounds like your native units are mm and your loading a file with G20 in it.

Units don't matter. The movement of the DRO doesn't relate to the movement of the spindle.  Large movement of the spindle small change in DRO.

I tried a couple different files with same result.


Don

Does your g-code have a G21 in it? I'm pretty sure it's a units issue. Probably opposite what I said before. Machine set up in inches, and running a file in mm's.

Gerry I have G20 in my Mach init string.

How do I check my native units?  This is a new machine (K2CNC).  The only software I received was the Mach profile.

>>How do I check my native units

Never mind I found it in motor tuning.

Does your g-code have a G21 in it? I'm pretty sure it's a units issue. Probably opposite what I said before. Machine set up in inches, and running a file in mm's.

Gerry you and Tweakie are right!

My machine was motor tune in MM... If I put a G21 in my code I can run my files:)

What do I need to be aware of to change the motor tuning to inches??

Thanks for your quick help!

Don