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| Harold Hall's precision grinding table |
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| wheeltapper:
Oh yea. I remember you now. :doh: I've got a lousy memory for names. I mentioned I'd oil blacked mine but I don't think I'll do anything else like that, the stink, and the mess. Oh, did I mention the stink :( plus it's wearing off, I must have got it too hot,...................or not hot enough..............or something. Roy |
| madjackghengis:
Both those tables look very useful and well made, as for the finish, I like to throw those kinds of things in my wood stove till they're red and then dump them in waste motor oil. It does put up a stink and some smoke, but it gives a solid durable finish that holds oil, and won't rust easily. I like it a lot. very nice indeed. Jack |
| xo18thfa:
That's an interesting idea to use motor oil as a finish. I'll try that. Making progress on the Harold Hall grinding table. I did a boneheaded thing and ordered the wrong size dovetail cutter for the slides. So while waiting for the correct cutter, I got on some other parts. Basically have the lathe tool grinding accessories done. I am panning to do the drill bit sharpening attachment at some point too. The adjustment knobs turned out very nice. The increments were made on the lathe with a “V” held side ways in the tool post. A piece of paper tape with 30 increments wrapped around the lathe chuck. Each increment got three cuts, adding 0.002” depth for each cut. At the end, a very light skim took off the burrs. The lead screws have 32 threads per inch. Each increment on the adjustment knob is 0.00104” (doing the math). |
| Bernd:
Looking good Bob. Real nice job on the dials. :thumbup: Bernd |
| xo18thfa:
Thanks Bernd Got all the parts made for the Hall Grinding Table. The sliding table portion is assembled and works great. It was the first time I ever milled dovetails. I tried to assemble everything and immediately realized those fancy handles are not going to work. They bump into everything and require too much fiddle to make work. I am going to replace them with regular hex bolts and nuts. |
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