[SCzEngrgGroup]

Pocketing

Attachment 298336

this was using an un-coated Destiny Viper 3FL rougher, 6000 rpm, .315 deep, .15 width, 36 ipm. This equates to about .003 chip load per tooth. No steps lost.

When running this program with the stock PCNC motor with this tool same cut, the most I could push it while being in the low yellow range of the load meter was 14 IPM @ 3750 rpm which was the sweet spot, any higher and the torque fell off real fast.

The cutting tool manufacturer recommends .005 to .007 ipt so I'm not even beginning to push it. I'm doing a paying job right now, a gang of 8 parts per load so I don't want to experiment to much.

In a couple of weeks I should be able to post some real tests.

jh

That's odd.... The stock machine should have been able to do that cut with relative ease. It's generally good for about 3 cu. in./min MRR, and at least 1.0-1.25 HP. You're only running about 1.6 cu. in./min, and 0.6HP. If you're finding that to be a big improvement over stock, I have to believe there was something wrong with your original motor or VFD.

Regards,
Ray L.