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About LinkBacksI made this mini tool post grinder from a Harbor Freight micro pencil grinder and some scrap aluminum.
I made this mini tool post grinder from a Harbor Freight micro pencil grinder and some scrap aluminum.
12L14 (Jul 31, 2019), EnginePaul (May 13, 2019), Jon (May 11, 2019), JTC (May 13, 2019), Moldyjim (Jun 25, 2021), MrSilverfox (May 14, 2019), mwmkravchenko (Jun 28, 2021), NeiljohnUK (May 14, 2019), nova_robotics (Jun 24, 2021), Okapi (May 21, 2019), Ralphxyz (Jun 26, 2021), Scotsman Hosie (May 14, 2019), Seedtick (May 14, 2019), Shanty (May 14, 2019), Tule (May 20, 2019)
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Moldyjim (Jun 25, 2021)
Pretty typical of the runout on those pencil grinders, the collets aren't very precision.
A careful whack and a diamond truing of the wheel will help out a lot to get a good finish.
I've done similar grinding by just putting the grinder in the toolpost directly. and carefully tightening the setscrews down on the grinder body.
Not precision grinding just a gotta get it done job.
Good job.
I use the same type of grinder in a boring bar holder, sleeved to suit the diameter of the body, for sharpening end mills in the lathe.
When I was young and poor I learnt a trade, and after many years of hard work I’m not young anymore.
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