Quote Originally Posted by Tweaky View Post
I had used a 1/2" cutter, and ran the code 3 times on the final cut!?
If you want accuracy it is best not to buy your cutters purely on price :whistling:

Once they start to rub, rather than cut, you can repeat until Doomsday without removing the excess.

If the taper is more pronounced in X it's probably column flex. To flex in Y means bending the column, to flex in X the column acts more like a torsion spring.

Put a dti on it and see how hard you have to lean on the chuck to get problematical movement.

If the taper is even it could be a sloppy quill, does the dti reveal more flexing as the quill extends downwards?

Lots of lube helps keep tooling sharp.

Robin