11-25-2016, 11:47 AM
I was turning down a back plate ... this one to be exact ... https://www.grizzly.com/products/6-Pre-Machined-Back-Plate-D1-5/T25218 ... to allow the protrusion to fit into the recess of a 5C collet chuck ... http://www.cdcotools.com/item.php?itemid=404 ...
Things were going along nicely. I was sneaking up on the required 3.74 inch protrusion diameter. I had gone thru several iterations of warming the chuck up in the oven, testing the fit, then taking "just a smidgen" off the back plate. Wash, rinse, repeat.
I'm sure you know how this story ends. The protrusion is now "just a smidgen" too small as the chuck fits without any issues and "just feels loose". I'm guessing the back plate protusion is about .001 - .002 too small. Even thought I knew it was too small I mounted the chuck anyway just to see how bad it was and indeed, there is an unacceptable amount of run out in the mounting.
What are the options to build the protrusion back up 'just a smidgen" so I can take another shot at getting it right?
Thanks,
Arvid
Things were going along nicely. I was sneaking up on the required 3.74 inch protrusion diameter. I had gone thru several iterations of warming the chuck up in the oven, testing the fit, then taking "just a smidgen" off the back plate. Wash, rinse, repeat.
I'm sure you know how this story ends. The protrusion is now "just a smidgen" too small as the chuck fits without any issues and "just feels loose". I'm guessing the back plate protusion is about .001 - .002 too small. Even thought I knew it was too small I mounted the chuck anyway just to see how bad it was and indeed, there is an unacceptable amount of run out in the mounting.
What are the options to build the protrusion back up 'just a smidgen" so I can take another shot at getting it right?
Thanks,
Arvid