Looking for advice on speeds and feeds for a clean cut on HDPE. My current settings are fairly smooth but looking to improve it. 1/8" 3 flute TiCN coated carbide (also tried 2 flute, cuts about the same) Spindle Speed 32K 1800 mm/min Multiple pass @ 1mm per pass These are pretty much the defaults Fusion360 put in with the tool specs and spindle speed. I've adjusted them a bit from that but not really sure what I am doing yet. I have since found this calculator and wonder if I should go by it. Fablab Feeds and Speeds Calculator Any advice would be great, thanks!
After looking at and trying several other suggestions, this is what I came up with. 1/8" 1 Flute HSS. Spindle Speed, 18800 (#3 on Router11 calculated 10K - 32K, 4400 per switch setting 1=10000, 2=14400, 3=18800, 4=23200, 5=27600, 6=32000) Feed: 1746 mm/min DOC: 1.95 mm Gives a nice smooth finish, no chatter rough cut, no finish cut. Note you can also achieve half settings on the Router11 1.5, 2.5, 3.5 etc I also found this generic Feeds&Speeds calc a big help. Fablab Feeds and Speeds Calculator Hope this helps someone. Thanks!
