16° Tangential Tool Holder

Nice work Larry, what I like about your design, is that the 16deg angle means the holder clears a large diam workpiece nicely, it also does right and left hand, which is handy...

I've been thinking on how to cure those deficiencies in mine, looking at your design has given me a prod!

I like your clever split cotter clamp, but I'm wondering if it may be too efficient, I like the fail safe function of mine and it worked well when I tested it, have you tried over loading it to see if the tool drops safe under extreme load?

Bernard
 
Bernard, my design is pretty solid, no it will not drop under a heavy load. But then, that is what I was trying to achieve. My understanding of most any kind of machining is to go for rigidity. When would you ever want a tool to slip? My feeling is, you should not overload the machine.
Larry
 
I agree rigidity is what we're all aiming for in tool design.

But me being a newbie amateur, I'm still trying to think like a machinist, and I have had the occasional slip up, broken a couple of newly ground tools practicing on different materials, trying various Speeds, DOC, feed rates etc..

I have an Atlas, not the strongest machine out there, so I like the fact idea that a 'slip clutch' can be built into a tangential tool holder without sacrificing rigidity, others had mentioned this feature in other posts and it just seems a good idea to me...

Just my way of thinking.

Bernard
 
I guess I go the other way, I use conservative feed rates, and don't try to push machines to their limits. I seem to get better results that way.
Larry
 
What a fantastic job! I have been wanting one of those for my 12x36 Atlas. Now I have another project.

This form is such a great place to learn. Many thanks to all of you who share.
 
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