Re-Built a used CNC mill machine to the point of 80%

[JAZZCNC]

I don't care if a job that should take 10 mins actually takes 40mins. I just want accuracy. The next step will be to put a 5mm plate behind the rails and change them for supported ones, but that's if I get any problems.

I think you'll find that while it may well cut at 1.5mm DOC the finish will be rubbish and the machine will quickly feel the affects and start to suffer with accuracy.

If you want accuracy and quality finish then you'll need to beef up the frame and Z axis or take shallow DOC.!