u/CyberBill

I'm just getting started with CNC milling, and I am having trouble with prepping my stock. I have a chunk of aluminum that I use the band saw or chop saw to rough cut to size, but this usually leaves me with two unfinished/rough sides.

On a normal mill I would clamp the piece from the flat sides and run a fly cutter over it to make the top (rough) side flat, then flip it over and do the same to end up with a perfectly square piece with clean, flat sides.

But on the CNC, these aren't standard operations that I can do right out of the box.

How should I go about prepping my pieces of material and getting them square and the right size for CNC milling?