What end-mill should I use ????

Hi Pat, Rigid is a relative term, especially when you throw 5-axis into the description. A carbide rougher might not be the hot ticket. I've had pretty good luck with YG roughers in steel with 40 taper spindles. Here's the number for a 3/4" that would work pretty well. 75359CC is the first line, and the second line is X4FSR-4806. Third line reads

Later,

Charlie

Hi Pat, Rigid is a relative term, especially when you throw 5-axis into the description. A carbide rougher might not be the hot ticket. I've had pretty good luck with YG roughers in steel with 40 taper spindles. Here's the number for a 3/4" that would work pretty well. 75359CC is the first line, and the second line is X4FSR-4806. Third line reads

Later,

Charlie

Damn echo in here.

Charlie,

You might try using ( free newserver ):

aioe.cjb.net

Retention isn't all that great, but seems to propagate readily....

Cheers,

--Sam

Send out to a laser shop.