nice work Jim
how did you do the oval holes in the face?
how did you machine the rounded profile on the face?
chris
I machined angles across the face,using a few fixed angles as in the angle running into the center is 55deg and the one on the outside edge is 48deg .
In cad I drew the cut angles on the profile drawing then that gave me the trajectory entry/exit on the top face and the side face.
I use router bits on the mill and the job in the rotary table, I run at 1300rpm and you would be shocked at how quick it comes of once you are set up.
Eg If I want a 45deg angle I use a 45 router bit,or if I need 55 deg I use a 45 and only pull 10 on the head it makes it faster.
Sorry to bore you guys with details but Chris and I have the same milling machine.
When that was done I used a disk sander while in the lathe and knock all the corners down,then clean up with emery.
I also have a pattern that I keep fitting into the rim to check as you go.
If I can get them all fairly close I will be happy,you can only look at one at a time so any small differences will go unnoticed.
The slots are done in the mill on the rotary table, its actually an upside down triangle with radius corners
It is 3 holes and some milling.
I use a 25mm and 22mm router bits for the holes and a 22 mill tool for the milling
Its a bit of jerking around to a point I should have just made them slots.
jim