Hello Guest it is July 12, 2020, 04:47:16 PM

Author Topic: This cut is as bad as it gets  (Read 3463 times)

0 Members and 1 Guest are viewing this topic.

Re: This cut is as bad as it gets
« Reply #10 on: June 01, 2015, 05:23:33 AM »
Thanks Chris,

I bought some nice new 6 and 8mm 2 flute Hi-Helix 45° cutters.
On the same material as before I managed to pocket a 52mm dia hole 16mm deep. ;D
Feed was 400mm per minute at 1mm deep. I never been that brave before.
Hood suggested that my machine looks as though it should cope with 2mm depth per pass so I may try that next.

I still think that 2100rpm on the spindle is a bit slow so I might consider making a new pulley to up the speed to around 4,000.

Regards

George
One step at a time!
Re: This cut is as bad as it gets
« Reply #11 on: June 01, 2015, 06:19:25 AM »
Just watch you don't go over the speed rating of your spindle bearings! Most have ratings for oil, grease and oil bath. I'd check what you have then check on a bearing site like NSK or similar.
Re: This cut is as bad as it gets
« Reply #12 on: June 05, 2015, 11:47:29 AM »
Not being insulting, cause i have done if before, and the resulting mess kinda looked like that.

Is the spindle turning the correct direction?

did this multiple times yesterday, spend half the day scratching my head before i realised, :s
« Last Edit: June 05, 2015, 11:53:07 AM by JonNorris »