On Mon, 16 Dec 2019 at 17:21, Gene Heskett <[email protected]> wrote:
> I see that the worm drive that indexes this thing is not in the base, but in > the part that tilts. It has to be, surely? I can't see how you could tilt the worm and not move the shaft. > This throws a large monkey wrench into my plans to belt drive the worm from a > motor on the rear of the base as the shaft spacing would then change with an > adjustment of the tilt. Did you see how I modified mine? https://www.cnczone.com/forums/uncategorised-metalworking-machines/172314-cnc.html > Any method of fixing the motor to it must then move the motor with the tilt. > And it must clear the base as it tilts. It might actually be better to ditch the worm and wheel, and to drive the spindle from the back through a large belt reduction. Before you go any further, test the backlash at all positions around the spindle rotation and make sure that it is possible to adjust the worm engagement to be free-turning and low-backlash at all positions. My BS0 clone was always too tight at the tightest spot and too loose a the loosest spot. I wonder if the BS0 body is large enough to serve as a mounting for https://www.ebay.com/itm/163654248380 (Which is an integrated servo, harmonic drive and cross-roller bearing) -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
