Polycarbonate with Amana plastic bits

[Julien]

Here are a few video captures of me using that same 51411-K in acrylic, at 16.000RPM & 54ipm, which translates to 10.000RPM and ~33ipm, and getting half-decent cuts but with some level of chip packing in the slots

Dust shoe videos collection

Cutting some acrylic tonight. Amana 51411-K single flute 1/8", started at CC’s default of 16000RPM, 45ipm, about 1mm depth per pass, bumped the feedrate by 10% during the run as it was borderline too slow, so ended up cutting at 54ipm, dust shoe helps getting those chips out of the way.

14ipm@10000RPM on that single flute is a 0.0014" chipload, which is ok (one can usually pull off several times that in acrylic, but at least it’s not rubbing…)

Are you using dust collection ?

EDIT: Amana says 70 to 110ipm at 18000RPM, so 38 to 60ipm at 10000RPM would be the sweet spot for them