How hard is it to CNC this?

[sanddrag]

The keyway is easy to broach. I can do that no problem.

Originally Posted by dez250

Also the spaces between the 6 stading posts can not be milled due to you wanting them to be square. If you dont mind that space being a circular gap, it could be done. Though if it needs to be a square gap, it would have to be cut out with a saw most likely.

Could you explan this a little more? I'm having a bit difficult time understanding what you mean by "circular gap" Perhaps a quick sketch? How is everyone envisioning this being held in the machine (what orientation?) I picture the axes of the holes parallel to the z axis of the machine.