05-12-2017, 11:15 AM
(05-12-2017, 08:18 AM)Mayhem Wrote: Option 1 all the way
I need to respectfully disagree as I doubt the bearings are capable of withstanding RPM's double of its design.
That said it is a small and very good vertical mill and 12,600 RPM would be very desirable for small drill bits & cutters. I'd first look into finding bearings that are designed to run at 12,600 RPM.
BTW, I am planning on a very similar mod to my Fray doubling the number of speeds, but I'm going for a lower, low speed for some of my larger tooling.