Sterling Dump

[Heavy Metal]

Originally Posted by tc1cat

Very nice CNC work! Does the Taig have high enough rpm to handle the small end mills needed for making the Sterling name plate and "S"?

Lynn

Lynn - Uh...how about "I hope so". Could be an expensive experiment. (Broken or dulled end mills, right?) Taig has max spindle speed of 10,500 RPM. I'm no machinist but plan is to do the math and just slow my feed rate down to achieve end mill manufacturer recommended chip size for 6061 alum. 4-flute end mills help as well. Have to admit I haven't paid as much attention as I should to spindle speed, depth and feed rate so far. I kind of combined math from books with trial and error tests a couple years ago and wrote a few notes on garage wall for approx feed rates and cut depths for 1/16" thru 1/4" end mills and just run the mill at 6500 RPM all the time (Taig has 6 speeds via belt change). (Machinist are cringing, I know). Obviously I will be moving the belt to 10,500 for these 0.015" thru .040" end mills.

Machinist in the group: Tips and suggestions on this welcome!!

Joe