Next, tramming it 'cause it ain't square

I chucked up a dti on a 9cm radius and measured to the bed at 4 points of the compass. Plus is a dip, minus is a bulge.

North 0.0"
East -0.004"
South +0.0035"
West -0.0087"

As I measured each point I drew a circle around the DTI tip so I could measure all four points moving the bed rather than the dti...

North 0.0"
East +0.002"
South +0.001"
West +.0025"

Yes, my column is out of square and the bed is a ski jump :nope:

RS do pre-cut shims with a MOQ of 10, so I ordered the 0.05mm (0.002")

Never tried this before, think I need 8 of them and a bed skim :whistling: