Precision Drill Sharpener

Great article. Thanks to both you and John Moran. I do have a question. I agree that the base plate is 6" fore-aft and 8" sideways.I cannot find any mention of a size for the traverse table, although it is obviously bigger than the 4.25" fore-aft and 5.5" sideways. The trunnion table has several sizes. What size did you finally make the trunnion table and the traverse table? Come to think of it, is the front hole for the .125 pin still 1.050 fore-aft and 1.900" from the left side of the trunnion table?
I have ordered everything to make your version, except I decided to keep items 13, 14, and 15 since I have no way to cut a radius slot as you did with your plate to set the relief angles.
Again, thanks for the article.
Jim McGovern
Madison MS
 
Thanks for the info, Brino. I guess I shall either wait until next year or try to figure it out for myself.
Jim McGovern
 
Thanks for the info, Brino. I guess I shall either wait until next year or try to figure it out for myself.

No problem Jim.
Maybe someone else here is following this build closer than I am and will chime in with some wisdom.
-brino
 
Jim
What is your question? Maybe we can come up with the answer.
Nelson Collar
 
I have thought about doing some sharpening for a few folks, but the cost of shipping both ways plus a couple bucks for sharpening and it gets too expensive. But any of you close enough to bring it, I'll sharpen the big bits for you. ( as long as I don't get over run :D ). I used to sharpen these big drills by hand cause I had no other way, but I can't believe the difference in drilling and hole finish using a properly ground drill.

A great build Mark, as always. When I was an apprentice back in the 60's we were taught how to sharpen drills by hand, I still do this for drills over 1/4" but have bought a cheap chinese made drill sharpening machine for the smaller sizes, it will take drills up to 1/2"but the fine diamond wheel is too slow.
 
I used to tell all the guys working for me. If you screw up don't scrap the part til you talk to me. If the mating part is not made yet we can always change things to fit rather than make a new part. Especially if it was a part that took a while to make. Then I would give engineering the new changes.

Yep, that's the way of the real world. Done that many times myself.
 
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