Anyone have some time to run , Cnc race! on a LR2 In the center of your X span? I would love to see the numbers feedrates you run you get and for what length X span. If possible, I would like to see at what point dimensions or surface finish deteriorates. Total time is of no concern, just at what federate the surface finish breaks down.
Jeffeb3 has a LR1 in that thread, 4’ S span, that hit “This was 20mm/s, 90% stepover, and 12mm DOC. 1/8” single flute upcut."
Barry’s 4’ span LR2 in that thread, actually hit 50mm/s with a 1/4" endmill when things started to deteriorate.
I am trying to get a good gauge of what is possible. Turns out my LR2 was not running nearly as well as Barry’s even with a shorter X span.