On Fri, Feb 17, 2023 at 02:04 AM, Keith S. Angus wrote:
... much simpler - no spindle, no pulleys - just mount the wheel direct onto the motor shaft.
Right ... I first thought of that but then it occurred to me that the motor's speed (stated as 5.000/6.000 rpm) would be too high for grinding HSS with a diamond wheel.
What grit do you suggest for those speeds?
... need a tilting table to set your basic angle.
Yes, something to be able to set angles in a reliable and consistent manner to achieve the same shape/angle every time.
If you can grind a reasonable toolbit freehand with a normal bench grinder ...
Nope, not a chance. Regular eyesight and lack of proper 'grinding' training makes a jig of some sort a basic requisite for me.
... ground surfaces that were almost polished, and very sharp cutting edges ...
That is where I am aiming at + being able to do it every time. Eventually from blanks, instead of paying through the nose for ready ground HSS bits which have to be maintaine sharp properly. ie: done properly
