For the want of a better reply which does not seem to be coming.
I myself have not had any experience with a pencil grinder, but I am sure I have seen the subject discussed else where and am pretty sure the idea was working for some one else but donít take my word for it.
Hopefully some one with some experience will jump in here, but if not and it would not course you too much effort give it a go, it will at least be worth the learning experience and may be you could help some one else with the subject in the future. Some one has to be the first.
One other thing, is anybody else having problems posting quick replies?