Supporting > My Workshop

Kitchen workshop

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Don1966:
 :hi: Welcome.John, that is quiet a setup you have. Doing all with basic setup is very ingenious. Look forward to seeing some of your work.

Don

ReFlad:
John,
I do believe you are a genius!  What a great setup!

Ronald

rudydubya:
Nice setup in a limited space John.   :ThumbsUp:  But be careful when you fix dinner in that area, you don't want too much iron in your diet.

Regards,
Rudy

Mosey:
I nominate you, John, for the most efficient shop of the year.
Please do show your projects.
Mosey

Johnb:
I mentioned above that I'd been making boring tools and I thought you might see how I went about it. There's  nothing special about it, but as usual I need to consider the tooling required and the facilities available (no grinder!)

This is my first boring tool, made some years ago.I made it from some 1/4" square with a toolbit of 1/16" silver steel held in place with a grub screw in the end of the tool holder. It did well enough, but it was not a lot of good for a flat-bottomed hole. On top of which the toolbit disappeared quite quickly on sharpening, which was a fiddle and a bit random.



So I made a tool holder for 5/16" tool bits based on a design by George Thomas.



The toolbit is again silver steel. Having made this to shape and hardened and tempered, it just needed to be sharpened. I used a couple of jigs and my trusty stone. The first jig I saw in a book by Ian Bradley. Jo put up a picture of this a couple of months back, but here's another one.



It consists of a couple of plates kept apart by a lump of wood. The plates have angles of 6 and 1 degrees so the jig is handy for honing clearance angles. For the boring tools it is handy for the end face, and to do this one the toolbit is clamped to one of the plates with suitable packing.



The stone is then run up and down to hone the end.



The side is done with the stone horizontal. I have a block which holds the non-business end. This sits on a suitable support and stops the tool wobbling as it is worked up and down the stone.



The same process is used for the top face.



And after an hour or so of gentle honing, there's a set of boring tools ready for use.



The square block wasn't intended to be a honing jig, though it turned out dead handy for that. The theory is that it is held in the four-jaw chuck with boring tool inserted to form a poor man's boring head. With a DTI to measure tool movement using the chuck jaws, it might just work.

I'll let you know how I get on.

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