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| A boring table for a Craftsman 12" lathe |
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| chipenter:
Did you cut from the chuck out of from the back of the blank inwards , I only ask because I have not cut a left hand thread yet ? |
| vtsteam:
Don, thanks for the encouragement! I'm ready to cut serious metal today!! Or as serious as I ever get. :) :beer: Chipenter, no, I cut from the tailstock end into the piece, right to left. |
| vtsteam:
--- Quote from: chipenter on September 09, 2013, 02:46:02 AM ---Did you cut from the chuck out of from the back of the blank inwards , I only ask because I have not cut a left hand thread yet ? --- End quote --- I was kinda confused byt this, and the link to the taps you gave earlier -- left hand taps. Why all this left handed talk? So today I decided to check my cross slide screw. Sure enough a left hand thread. :doh: The Gingery lathe I built had a right hand thread for everything -- naturally because it was made out of common all-thread. I just assumed the Craftsman was the same. .........Wrong! I'm not sure if I'm up to plan F yet, but feels like it. Luckily a lathe threading tool can cut either way, unlike a tap. Although it is handed -- inside vs outside cutting. Anyway, started on the new tool. |
| vtsteam:
This time I decided to reduce a portion of the shank to .315, while leaving the bulk at .5. I realized it would fit my boring tool holder, and didn't need to fit the .375 slot in my regular lathe tool holders. The 5/16" section seemed to be the maximum diameter possible to provide clearance for backing out of the groove and returning the tool to start while threading, based on my other tools. |
| vtsteam:
Fluting the cutter. This time I milled to the center, and decided I would add more relief later, rather than milling below center. |
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