08-09-2017, 10:59 AM
On the Rockwell mill, I did a similar insert or cartridge style piece to raise the number of speeds from 6, ranging from 370 to 6300, with the change, the mill now has 24 speeds, ranging from 125 to 6650 rpms. The motor mounting is still a work in progress, but the mill, even in it Mark 3 mode, is a joy to use.
jack