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Thread: Bench grinder conversion
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03-16-2016, 03:38 AM #1Senior Member
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Bench grinder conversion
I'm looking to turn this bench grinder into a buffer. What are your thoughts?
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03-16-2016, 04:00 AM #2illegitimum non carborundum
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It can be done, but the accessories needed to lengthen the shafts enough to make it useable put you pretty close to the price of a Harbor Freight buffer.
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03-16-2016, 04:09 AM #3Senior Member
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Is there a particular way to lengthen the shafts and why is this necessary?
Originally Posted by Utopian
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03-16-2016, 04:20 AM #4Senior Member
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In general you will need to extend the shafts in order to get enough working room to use it for working with razors. Essentailly you are wanting something like this
Extra Long Shaft Extender - Caswell Canadaaaron1234 likes this.It's not what you know, it's who you take fishing!
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aaron1234 (03-16-2016)
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03-16-2016, 04:41 AM #5Senior Member
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Big wheels don't match all the razors grinds. You may be able to get away with an 8 " wheel on full wedges but they don't work to well on hollow ground razors. Not to mention if those are 6" wheels and you put bigger ones on your increasing the speed. 1700rpm is okay 1500 better.
If you look at the harbor freight buffers you will see how long the shafts are. I use 4 inch wheels on those and they still need to be out farther.Good judgment comes from experience, and experience....well that comes from poor judgment.
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aaron1234 (03-16-2016)
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03-16-2016, 04:45 AM #6Senior Member
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Right now it has 8 inch grinding wheels on it. I plan on putting smaller buffing wheels on it but I'm still working on size.
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03-16-2016, 08:11 AM #7Senior Member
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The speed should be ok
I run 4" & 2" buff wheels on a 3400 RPM grinder with out to much problem but the 1740RPM will do it betteraaron1234 likes this.Saved,
to shave another day.
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aaron1234 (03-16-2016)
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03-16-2016, 04:33 PM #8Senior Member
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Put a razor up to the wheel and see if you have enough clearance to buff the tip of a razor face without hitting the housing with the tang. Make sure you have the wheels as far away from the housing, with the nuts on fully threaded.
Make spacers to put between the housing and the wheel to space the wheel further from the housing.
You want to run 4 in spiral sewn cotton wheels, Caswell Polishing, is where I get my wheels from, as well as all the compounds.
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aaron1234 (03-16-2016)
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03-16-2016, 04:39 PM #9
Not the only suppliers but these are really handy! They extend the shafts and you can change buffs in a very short time:Just assure that you have them on the correct end of the buffer!!
tapered buffing spindles | eBay
Tapered Buffing Spindles - Buffing Adapters - Polishing - Caswell Inc
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