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...to review. This is the device in it's natural but very rare state of clean and ready for the next project.
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I've been doing quite a bit of work out of the spindle taper. This makes me nervous as the spindle threads and register are exposed to damage and stupidity.
"Never underestimate he power of human stupidity, this includes your own".
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The tool on the left just wasn't rigid enough and no amount of spring passes would complete the threading. That and curiously enough the "tune" via chatter that the overhang was playing tended to make the tool holder rotate on top of the compound no matter how tight the post bolt was.
The tool on the right was a close relative of some sort of stainless. More likely a 41xx variety. A total PITA to machine. In the end I got the tooth profile in. Without hardening it took and kept an edge and appears to have changed it's tune (resonance).
Once I got it to begin threading I ran maybe 6-8 spring passes with naphtha (zippo fluid) for cutting fluid. The counter bores are 1" to clear the register and 1.63xx" to clear the shoulder so that the threads, register and shoulder are protected.
I feel a whole lot better now when a chuck isn't protecting the threads.
Oh yeah. A few shameless plugs for those that contributed to the project.
Joel.To a true baseball fan and provider of replacement metal gibs.
http://www.mymachineshop.net/
Rich. Provider of affordable precision cutting tools made in America.
https://www.standardcutting.com/
The whole family at Swift for supplying me with everything from 1/4" HSS blanks to annealed tool steel and putting up with me for 30+ years.
https://www.swifttool.com/
Paul Stoner of Stoner metals for reasonable prices on bits and pieces of stock.
https://www.ebay.com/usr/6061dude?_trksid=p2047675.l2559
Peter Jones for hours of reminding me of everything I'd forgotten about machining over the last five decades.
And last but not least the provider of the all important cutting fluids and coolant.
https://www.futureprimitivebeer.com/