Need some help!!
I'm new here, .. great site and great resource.
I'm using the Weldon style holders for my ball or "lollipop" tools
I use for 5 axis cnc on aluminum.
The tools are 8" and 5.75" hangs out of the tool holder.
What I've found is if I over tighten the set screw too much it
causes a ton of run out.
I'm using either Accupro or Kennemetel tool holders, ..
"tight" and I have .001" of runout, .. take an extra "grunt" on
the set screw, and it'll jump to .006" - .008"
What's causing that, .. and just how tight does that screw really need to be?
Seems really odd to me.
I do grind small flats on the tools as a precaution, .. and perhaps I shouldn't???
Thanks,
Curtis