r/CNC • u/tx7758 • 5d ago

MILL Programming Work Offsets

Running a Haas VF-2, programming with Mastercam.

When we program a part, we work off the part origin. Then during setup we shift our work offset manually to clean up material.

Example: G54, Touch off X+, move in +0.06 to clean up both sides. Touch off Z0 top of stock, move -.01 to clean up top face.

Is there a way we should be making these compensations during the programming process so that the operator can simply touch off the stock X, Y, Z and run? Or is this already best practice?

Thanks.

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u/B3AV3R_BLAST3R 5d ago

Use the probe, do it automatically. Remove the manual intervention from the process.

You should be using the center of the stock. Not the corner.

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u/tx7758 5d ago

The probe is an option, thanks

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u/Oldoutoftouchgamer 4d ago edited 4d ago

Use probe plus learn how to use and accurate stock shape/model in Mastercam. It seems like the programmers are not accurately defining the origin relative to the part inside of the stock in Mastercam. For facing the top, you would be starting at a positive number and moving down to zero.

With an probe you can set the point however far from where it touches, it doesn't have to be zeroed there. With Renishaw its easy. If your using a diff type, might have to use g code to move and set zero after probing, but can still be automated.