Hey I'm ready to cut but want to drill a hole through my work table.

When you use the Wizards in Mach 3 such as circle cut and hole drill, do you position the Z axis bit down and just kiss the surface to be cut then press the Zero axis button and then Press Start??

Thanks

Yes thats exactly what you do The top of the workpiece is set as zero and all cuts are negative numbers.
Hood

Thank you Thank you Thank you.  Two Gold Stars for You!

I looked it up in the Mach 3 mill manual and it talked about running the Wizards but not this very important point.

Here are the test procedure and results from measuring the X and Y axis. As you can see all the results from moving 1” came out to be 0.996” on all three tests that were ran on each axis. I am using ½” 10 TPI 1 start Acme rod. All three axis were cut from one piece of rod. This is not a high precision piece of iron.
After setup I did not have to touch the indicator, it came back to zero every time.

I will try and attach the spreadsheet with test details.

What do you think of the test results?
What would be my next step?

Regards

Hager

I would be suspicious of the accuracy of whatever indicator you're measuring.  Either that, or your screws are not reall exactly 10TPI.  Do the measurements again, using a different indicator.  If you get the same result, then you're screws are off, and the solution is to simply re-calculate steps/inch based on 10 turns = 0.996 inches.  If you get a different result, (hopefully 1.000"), then you know you have at least one lousy indicator.

Regards,
Ray L.