Quote:
Originally Posted by sanddrag
Don, where are you buying your Onsrud router bits. Link?
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McMaster - "Router bits for Aluminum". 3317A25 is perfect. 18K RPM, ~50IPM on a full slot 1/8" DoC.
Quote:
Originally Posted by sanddrag
For anyone, what feedrate should I be using when going on a helix plunge into the material with a 3 flute square corners endmill? My CAM package always puts the plunge rate at half the pocketing feed rate, but I worry and back it off a bunch, to like 20 IPM. I'm ramping down on a 3 degree helix.
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Best bet is to look up the datasheet for your endmill/call the mfg. I've seen helical ramp angles around 10-20 degrees for some of the "high performance" aluminum endmills, with feed at ~100% of normal feed. Aluminum is pretty forgiving.