fixed post machine - 15% overhang

 

polsim:

15% overhang

if 25% overhang

 

if 0% overhang. 50% tool diameter area is ground away

 

the simulation is quite contradictory to what they try to achieve - a spherical surface

Is fixed post machine a good grinder?

from another CN post,

Tucker512 is polishing a 8 inch convex surface, 100% tool with 19% overhang(1.5 inch)

polsim:

which is quite similar to same y offset, with 70%D chordal stroke

mark cowan

CLL, for polishing his 19",  use 15% overhang plus +/- 2 cm stroke