Hi. I've been trying to complete my first part but everytime I get to the edges (waterline, SprutCAM) of my engine bracket the end mill keeps breaking. I started with a Variable 4 Flute End Mills 1/4 from Maritool. It cuts great at DOC .03 but broke probably due to my work piece clamp a little lose. I went around town and found sonme 4 flute square end mill. I bought 6 more and broke 3 more :( I'm running 2560 rpm, DOC .02, feed 7.2 (can't remember, sprutCAM Trial ended midnioght yesterday). The last one I broke was on the 8th round of the edge (1.88 thick) and it broke. Should I be using a different tool, work on my speed, try a differnt approch besides waterline on sprutCAM? My next approch is to use a 3/8 end mill for more strength. Sorry for the noob question but I am assuring myself I am picking up pretty fast. I broke the tip of my Haimer Zero after trying to zero my next work piece and quitted. Got to order a new one.
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Thank you.
Thank you.