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Thread: Best thing for hone lapping
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03-03-2010, 08:08 PM #1Senior Member
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Best thing for hone lapping
I think this is the best thing I've ever used for lapping.
I did an experiment and tested my dumpster-find piece of granite and went and lapped again on the Starret slab and didn't find much of a noticeable difference. All of the pencil marks went away very quickly as if it was flat with only a couple of tiny marks on the two ends that disappeared with the next quick lap.
Last edited by 2knives; 03-03-2010 at 10:21 PM.
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03-03-2010, 08:20 PM #2Senior Member
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What do you put on the plate.
A good flat granite block can be expensive.
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03-03-2010, 09:06 PM #3Senior Member
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While it is probably as accurate as can be had I still like my GDLP or DMTC in the kitchen sink with water trickling down to take away the swarf. Flat enough for government work.
Be careful how you treat people on your way up, you may meet them again on your way back down.
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03-03-2010, 09:15 PM #4Senior Member
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You can get one from Woodcraft for less than $40 delivered.
Originally Posted by niftyshaving
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03-03-2010, 10:14 PM #5Senior Member
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They are quite proud of these you are right. I could not afford one, I have access to it in my building. I just lay sandpaper down, wet it, and lap away. Originally Posted by niftyshaving
You're right JimmyHAD! I usually use a granite piece that I found at the back of a granite cutting place. I did an experiment and tested the dumpster piece and went and lapped again on the Starret slab and didn't find much of a noticeable difference. All of the pencil marks went away very quickly as if it was flat with only a couple of tiny marks on the two ends that disappeared with the next quick lap. Originally Posted by JimmyHAD
While it is probably as accurate as can be had I still like my GDLP or DMTC in the kitchen sink with water trickling down to take away the swarf. Flat enough for government work.
It is way overboard to use this. Just a little test to calibrate my own granite slab.Last edited by 2knives; 03-03-2010 at 10:17 PM.
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03-03-2010, 10:36 PM #6I used Nakayamas for my house
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Check this out Originally Posted by niftyshaving
comes with certificate for flatness, it has micron precision.Stefan
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The Following 2 Users Say Thank You to mainaman For This Useful Post:
2knives (03-04-2010), niftyshaving (03-03-2010)
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03-03-2010, 11:25 PM #7str8s for life
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If I'm spending $32 + shipping for that block of granite and going thru substrates, don't I approach the cost of a DMT quick enough?
Used to lap waterstones on my mother's granite kitchen countertop with some wet/dry sandpaper but been switched to the DMT for years now...
Is the typical high-q slab actually flatter?
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