Author Topic: Calliper knurling tool  (Read 11698 times)

Offline Rik Shaw

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Calliper knurling tool
« on: March 01, 2014, 01:41:56 PM »
This is my take on a calliper knurling tool. I made it from bits in my scrap box. The adjuster arms I made from a stainless steel cupboard handle for instance. The only things I never made on it are the small patterned knurling wheels which were manufactured by QUICK and the three screws holding down the keep plate (although I did dress and polish the heads on the screws). This version of a knurling tool is based on a design which was originally manufactured by a company called MARLCO and is considered to be the Rolls Royce of knurling tools.

For a small lathe - mine is a WARCO WM250 VF - this is a hefty tool at nearly 7" long and weighing one kilo but it  cuts the mustard big time. I have included a photo of a knurl that the tool formed on a steel bar.

Rik

Offline NeoTech

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Re: Calliper knurling tool
« Reply #1 on: March 01, 2014, 02:00:59 PM »
This is probably one of the easiest constructions ive seen on these clamp knurling tools.. brilliant.! =)
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Offline Baron

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Re: Calliper knurling tool
« Reply #2 on: March 01, 2014, 02:08:20 PM »
Hi Rik,
Nice work !  Looks good with very clean lines.
Your photos should have something in there to give an idea of size.  Those knurls look tiny.

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Offline ieezitin

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Re: Calliper knurling tool
« Reply #3 on: March 02, 2014, 08:18:15 AM »
Rik

I absolutely agree with Neotech that's a sleek design. i just completed one myself otherwise i would build this one myself.

Thanks for showing it.

Anthony
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Offline Henning

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Re: Calliper knurling tool
« Reply #4 on: March 06, 2014, 03:03:14 PM »
How's that for a first post  :thumbup:

Great work! Any drawings for this? It looks slightly more wellbuilt than the original Marlco one which I saw one time. (The knurling wheels were between two plates on that IIRC)
Henning

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Offline Rik Shaw

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Re: Calliper knurling tool
« Reply #5 on: March 06, 2014, 03:31:12 PM »
Hello Henning
I based my version on an article and drawings by Graham Meek in  "Engineering in Miniature" volume 35 - No.5 published in UK November 2013.

Rik

Offline Arbalist

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Re: Calliper knurling tool
« Reply #6 on: March 07, 2014, 05:41:47 AM »
The Far East one I bought was very wobbly in use so I decided something more solid was needed.



Not my design, just copied from others I'd seen.

Offline Baron

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Re: Calliper knurling tool
« Reply #7 on: March 08, 2014, 11:41:51 AM »
Arbalist,  Your knurling tool puts my effort to shame.
I've marked mine for "Must try harder !"



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                     Baron

Offline Arbalist

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Re: Calliper knurling tool
« Reply #8 on: March 08, 2014, 11:48:35 AM »
Thanks, main thing is it works well enough. I would prefer to go to cut knurling but it's a bit pricey for something I don't need to do very often!

Offline ksor

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Re: Calliper knurling tool
« Reply #9 on: March 08, 2014, 12:03:52 PM »
Take a look at my Little program for helping find the "right" diameter for the piece you'r knurling:

There is NO vira in the MSI-file ! :med: :med:
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KSor, Denmark
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Offline Baron

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Re: Calliper knurling tool
« Reply #10 on: March 09, 2014, 02:14:26 PM »
Take a look at my Little program for helping find the "right" diameter for the piece you'r knurling:

There is NO vira in the MSI-file ! :med: :med:


Those eyes are scary.  :zap:


PS. No windows here.  :bugeye:



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                     Baron

Offline Arbalist

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Re: Calliper knurling tool
« Reply #11 on: March 09, 2014, 02:36:06 PM »


PS. No windows here.  :bugeye:

Me too, I only use OSX or IOS.  :coffee:

Offline ksor

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Re: Calliper knurling tool
« Reply #12 on: March 09, 2014, 03:46:42 PM »
Sorry - I can only make programs for Windows  :beer:

Best regards
KSor, Denmark
Skype name: keldsor

Offline Baron

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Re: Calliper knurling tool
« Reply #13 on: March 10, 2014, 06:08:34 PM »
Sorry - I can only make programs for Windows  :beer:


Don't be !  I have a BSc in computer science and a PG Dip Software Engineering.  I can't program to save my life...  :hammer:
Those eyes are still scary.  :palm: [size=78%] [/size]
[/size]
[/size]
Best Regards:
                     Baron

Offline Rik Shaw

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Re: Calliper knurling tool
« Reply #14 on: March 11, 2014, 05:44:23 AM »
Scary eyes? More like MAD I'd say. Alfred E. Neuman may have aged but it looks like he is still alive and kicking :-)

Rik

Offline ksor

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Re: Calliper knurling tool
« Reply #15 on: March 11, 2014, 05:59:42 AM »
Scary eyes? More like MAD I'd say. Alfred E. Neuman may have aged but it looks like he is still alive and kicking :-)

Rik

I too Wonder ... what "Scary eyes"  :scratch: :scratch:
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KSor, Denmark
Skype name: keldsor

Offline Baron

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Re: Calliper knurling tool
« Reply #16 on: March 11, 2014, 08:32:57 AM »
Scary eyes? More like MAD I'd say. Alfred E. Neuman may have aged but it looks like he is still alive and kicking :-)

Rik

I too Wonder ... what "Scary eyes"  :scratch: :scratch:


The ones at the top of your opening web page...

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                     Baron

Offline ksor

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Re: Calliper knurling tool
« Reply #17 on: March 11, 2014, 08:46:46 AM »
Scary eyes? More like MAD I'd say. Alfred E. Neuman may have aged but it looks like he is still alive and kicking :-)

Rik

I too Wonder ... what "Scary eyes"  :scratch: :scratch:


The ones at the top of your opening web page...


Ha, ha ... I think the nose is much more scary ... and the holes in it ... imaging if you should give "First Aid" by "mouth thru nose"-method ... THAT would be scary, I think !

OK, I just ME peeking into YOUR home while you'r peeking on my web site  :smart: :smart:

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KSor, Denmark
Skype name: keldsor

Offline Baron

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Re: Calliper knurling tool
« Reply #18 on: March 11, 2014, 05:34:05 PM »
Ok !  I promise not to look next time.  :beer:



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                     Baron

Offline stig

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Re: Calliper knurling tool
« Reply #19 on: March 11, 2014, 07:21:28 PM »
Mind if I ask a silly question?

Last time I did knurling was at school (quite a while back) I now wish to create a straight knurl pattern and have a clamp type holder similar in style to the ones above. When creating a diamond pattern its necessary to have a pair of opposite wheels to create the diamond.

Whats required for the straight knurl, 2 of the same or a pattern wheel and a blank/plain dummy wheel for the opposing side?
Getting new-used tools to use to make tools to mend tools that you got to mend other ones surely counts as fair game

Offline Arbalist

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Re: Calliper knurling tool
« Reply #20 on: March 12, 2014, 06:01:17 AM »
Two straight ones will do it.

Offline RussellT

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Re: Calliper knurling tool
« Reply #21 on: March 12, 2014, 06:35:33 AM »
Two straight ones will do a diamond pattern as well if you mount the tool at 45 degrees.

Russell

Offline stig

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Re: Calliper knurling tool
« Reply #22 on: March 12, 2014, 03:04:33 PM »
Thanks gents, much appreciated. OP sorry for the hijack
Getting new-used tools to use to make tools to mend tools that you got to mend other ones surely counts as fair game

Offline Xldevil

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Re: Calliper knurling tool
« Reply #23 on: March 12, 2014, 08:15:20 PM »
The Far East one I bought was very wobbly in use so I decided something more solid was needed.



Not my design, just copied from others I'd seen.

Hello.
That reminds me of the tool I' ve build.










Stock and drawings came from Hemingwaykits.

Cheers,Ralph




Offline Arbalist

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Re: Calliper knurling tool
« Reply #24 on: March 13, 2014, 12:56:29 AM »
Nice job Ralph!