I had little problem 3D printing, I assume the auto levelling took up the issue. But CNC I found cutting a 2mm sheet of carbon fibre that it never cut through all the way in one side.
So I started to do some measuring. I fitted a digital depth guage to the head and started to measure the waste board. I had seen posts of people levelling by milling the waste board due to similar issues. Before I milled it flat I measured it and found it was almost even all round.
I took off the board and measured the four corners of the table on the top of the washers. See photo. The actual base plate is 0.77mm lower in one corner and 0.33 and 0.24… lower in the other two. It is the area of the 0.77mm that my carbon fibre never cut through, now I know why.
Any idea how I should proceed to fix this.
Thanks in advance.