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[PROJECT] Clamp Knurling Tool

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Project Clamp Knurling Tool
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#111
01-14-2017, 05:42 PM
Looks good Ed!!
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#112
01-14-2017, 06:09 PM
Very nice Ed.
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#113
01-14-2017, 10:53 PM (This post was last modified: 01-14-2017, 10:54 PM by wawoodman.)
(01-14-2017, 05:00 PM)1EdK Wrote:
(01-14-2017, 04:32 PM)TomG Wrote: ...

I can't tell from the pic, but be sure the knurls are slightly chamfered before trying it out. Otherwise, they may dig into the work.

Tom

Now that I think of it, those knurls are not chamfered and are actually meant for my cut knurling tool project I may tackle some day. I might have grabbed the wrong knurls
Anyway, what TPI knurls do you use the most? The ones I've got on the tool are pretty fine so, since I'm doing a McMaster order, I think I'll get some properly chamfered knurls.

Ed

EDIT: those knurls were not meant for my cut knurling tool project. I got them from McMaster for this project. Now I'm wondering about a source for the beveled edge knurls. They seem to be as scarce as hen's teeth.

I got my knurls from Accu-Trak https://www.accu-trak.com

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#114
01-14-2017, 11:20 PM
Very nice Ed.
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#115
01-15-2017, 09:59 AM
So I'm assuming I need 45° left and right type knurls with beveled edges, correct?
I may try rigging up some way of beveling the edges on the knurls I have using a Dremel tool with a grinding stone. Chin

Ed
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#116
01-15-2017, 10:13 AM
Make a fitting so that you can use your dremel as a toolpost grinder. Lots of pics out there of people who have done this. Then turn up an arbour to suit.
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#117
01-15-2017, 11:00 AM
(01-15-2017, 09:59 AM)EdK Wrote: So I'm assuming I need 45° left and right type knurls with beveled edges, correct?
I may try rigging up some way of beveling the edges on the knurls I have using a Dremel tool with a grinding stone. Chin

Ed

Yes you'll need a right and left knurls for diamond knurling, but 30º knurls are more common than 45º. They produce the typical diamond shape knurl pattern. The pitch I use most is 20tpi, but I also have 25 tpi for a bit coarser pattern. I also have some 35tpi straight knurls which I use a lot.

The last time I chamfered the edges, I just mounted them on a bolt and chucked it up in the cordless drill. All it took was a light touch on the belt sander to do the job.

Tom
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#118
01-15-2017, 11:27 AM
Thanks for the info Tom. I'll try beveling them like you did.

I've got a set of 30° 30TPI and 40TPI  knurls for this tool. I got them from McMaster and they're Accu-Trak brand. They don't carry the beveled knurls though. I think I'll pick up a set of 30° 20TPI knurls also.

Ed

EDIT: I have 30° knurls, not 45°.
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#119
01-15-2017, 12:02 PM
(01-14-2017, 05:07 PM)wawoodman Wrote: Darn you, Ed, now I have to finish mine. Bash

A couple of tips I learned while assembling/disassembling the tool.

Mark the .250 -.001 diameter hole for the dowel pins somehow. I just scribed a line across the hole to mark it so I know which way to knock out the pin when necessary.

Measure your dowel pin lengths. Mine are long by about 10 thou on average so they stick out of the knurl holder and prevent it from sliding all the way into the body. I just knocked mine out to grind the ends down to slightly less than the width of the knurl holders.

Ed
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#120
01-15-2017, 05:55 PM
hi ED a job well dune Smiley-eatdrink004
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