Hi Julien,
Yeah, I noticed that and I have the setting as “Per Minute.”
I’m using a roughing strategy called VoluMill (which seems is the Solidworks version of adaptive clearing). Looking further into the operation settings, it looks like the spiral entry is a percentage of the leadin feedrate. The leadin feedrate was set to 10IPM and it gave me F2.368 for the spiral. When I set the leadin feedrate to 100% (72IPM), it gives me F17.053 for the spiral. That’s 23.68% of the leadin feedrate (same as the 10IPM).
So, it looks like that’s the issue. There’s also an option to set a minimum feedrate for the spiral entry, but it also uses that minimum for the rest of the operation, so it doesn’t incrementally increase the feedrate for hogging out the pocket. Is that gradual feedrate increase beneficial though? Also, what type of feedrate would one look for during this spiral entry? BTW, I’m just trying test cuts on a pine 2x4 with setting 21000RPM @ 72IPM.