View Single Post
  #11   Report Post  
Posted to rec.crafts.metalworking
Jim Wilkins Jim Wilkins is offline
external usenet poster
 
Posts: 3,146
Default Making Lathe Bits Without the "Right" Tools

On Feb 18, 5:09*pm, " wrote:
...And with a coarse and fine wheel, you should be able to
grind a tool bit about as fast on it as using a angle grinder. *Faster
if you count the time to get the angle grinder and the time to put it
away.
Dan


The difference is between holding the hot bit versus the grinder. They
slip in Visegrips. An Armstrong type holder works well for roughing if
you don't mind scratching it with the wheel occasionally, but they
don't give a good sensitive feel for finishing.

My photo shows smooth continuous ground surfaces without the usual
multiple small facets from hand grinding. I do that by letting the bit
float slightly in my fingers so it touches the wheel all over. I press
the end against the motor housing first to align it and try to hold
that angle while grinding. The hollow-ground ends are easy to hone at
only the cutting edge.

Jim Wilkins.