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Harold Hall's precision grinding table

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xo18thfa:
Something I’ve always wanted was a better way to grind HHS tooling for the lathe.  Research on the internet found a really neat precision grinding table designed and built by Harold Hall.   This is Mr Hall’s grinding table:



The table is used in conjunction with a regular bench grinder.  The plan for this table is in the “Workshop Practice Series #35, Milling, A Complete Course”



I started one of these and it’s about 1/3 done.





There are a series of attachments for the table.  They include a lathe tool grinding, drill bit sharpening, end mill sharpening and others.  My main purpose is for lathe tool, but would like to sharpen drill bits too.

It’s turning out very well so far.  I think it’s going to do the trick.

wheeltapper:
Hi
looking good so far.
I made the simpler version and that works well.


Roy

Corvus corax:
Both of the above rests are also detailed in Hall's other book:
Tool and Cutter Sharpening

wheeltapper:
I don't know what the OP plans but I've oil blacked mine since the pic.
Roy

xo18thfa:
Roy, I remember your grinding table from a few months ago.  Yours got me started.

I am painting the non-machined surfaces on mine to prevent rust.  Fortunately there is almost no rusting problems here in Southern Nevada, but it will get a "spritz" of spray oil from time to time.

The clamping ability is good.  The plan calls for M8 threads, I used 5/16 x 18.  NF might be better.  After it's all done the clamping handles will need "tweeking" so they don't interfere.

I had to order another dovetail cutter.  Mine is to shallow.  In the mean time owrk on the rest of the parts.

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