This weekend I finally got back to setting up the Osprey. I had a couple of retirement projects to do before I could get this done.
I got the step per inch calibrated to with .0005 - .0010 over 48" on the "X" & "Y" axis and within the same tolerance over 10" on the "Z" axis.
The repeatability and reliability test was within .0005 on all 3 axis's
This is far above my expectations for a Chinese built machine.
I was expecting about .002 - .005
I am impressed.