Author Topic: Hemingway Knurling Tool  (Read 5501 times)

Offline Don1966

  • Full Member
  • *****
  • Posts: 6817
  • Columbia, MS
Re: Hemingway Knurling Tool
« Reply #15 on: June 09, 2022, 10:06:43 PM »
 :Love:


 :cheers:
Don

Offline Baltic

  • Full Member
  • ****
  • Posts: 49
  • Mt Doran, Vic Australia
Re: Hemingway Knurling Tool
« Reply #16 on: June 26, 2022, 01:15:30 PM »
Thanks everyone for your kind comments, been a fun project, spare time is my enemy unfortunately.
However I have had a chance to get down to the workshop after work last week, for a few nights, and got some other key bits made, my bestie went down and lit the shed heater for me in the day, so was nice and cosy.

I decided to crack on with the cam adjustment pin and lever, and the 3/8 BSF screw feed screw,
I had a go at single point thread cutting the 3/8 feed screw, and its amazing how what you learned all them years ago come back to you.
I had my old trade school workshop manuals to refer back on, and was great just reading the old book, (1976, first year apprentice ) would have to be 25 years ago since I single point cut a thread.
I made one mistake, a big one, and pumped out a reject on my first attempt at thread cutting :hammerbash:, everything turned out perfect, but instead of a 20 tpi, I think I had some weird 21.5 tpi?? when I done my "touch pass" and used my thread gauge, I thought, it did not look quite right? I checked my setting and all looked correct, so off I went, lesson learned, "when it does not quiet look right" it is not !
one of my gears was wrong, !

Another thing I noticed , my lathe carbide tip tools did not like the silver steel and was getting a horrible surface finish, once again I reffed to my trade school book, and ground up a HSS cutting tool, this worked a treat.
Any how a few photos of the knurling tool progress.
Thanks Gary
« Last Edit: June 26, 2022, 01:55:52 PM by Baltic »

Offline Baltic

  • Full Member
  • ****
  • Posts: 49
  • Mt Doran, Vic Australia
Re: Hemingway Knurling Tool
« Reply #17 on: June 26, 2022, 01:52:19 PM »
A few more photos of the 3/8 BSF feed screw set-up and brass nut.
Thanks gary
« Last Edit: June 26, 2022, 01:55:23 PM by Baltic »

Offline Admiral_dk

  • Full Member
  • *****
  • Posts: 3752
  • Søften - Denmark
Re: Hemingway Knurling Tool
« Reply #18 on: June 26, 2022, 11:12:47 PM »
Lessons learned and a great result  :ThumbsUp: ... even if you used a wrong gearwheel - it do not distrack from the Process  :cheers:

Per

Offline Baltic

  • Full Member
  • ****
  • Posts: 49
  • Mt Doran, Vic Australia
Re: Hemingway Knurling Tool
« Reply #19 on: June 27, 2022, 04:21:22 AM »
Thanks Per 

I will try and explain what I mean by "wrong gear", rather incorrect location, if that makes sense ??  :embarassed:

Please see attached photo with description

Gary 

Offline Admiral_dk

  • Full Member
  • *****
  • Posts: 3752
  • Søften - Denmark
Re: Hemingway Knurling Tool
« Reply #20 on: June 27, 2022, 11:26:30 AM »
I think I got it, but as mentioned - You got the proccess right Gary -> it should not be a problem for you to do the correct 20 TPI.

Per

Offline Baltic

  • Full Member
  • ****
  • Posts: 49
  • Mt Doran, Vic Australia
Re: Hemingway Knurling Tool
« Reply #21 on: July 03, 2022, 01:31:22 AM »
Hello,
I spent quite a few hours in the shed on Saturday and I am going to call the knurling tool finished.

Been a really fun project when I have been able to work on it,

Saturdays work was only really small tasks, fitting the tool post holder, fitting all the components, and generally some fine tuning.

The Hemingway kit is great to use, and in general just enough material to be able to complete all the tasks the DWG's are clear, with a few missing dimensions to exercise my numskull,

If i had one complaint, it is the tooling call-up, Metric, BA, BSF taps and dies where required, I have plenty of metric, no BA, and a far bit of UNC/UNF, buts that's about it, anyhow, overcome not spending "hard earned's" by compromising,

It is good to be on the tools again, and learning all the time with all the info on this site, thanks.
Probably knock off a few basic shop tools in the next week, not sure what my next challenge might be ??

First few photos are the finished tool,
and a couple on the job, and the tool worked great,

And last photo, Alfie who demanded a bush walk after sitting in the workshop for serval hours  ;D   
« Last Edit: July 03, 2022, 01:42:04 AM by Baltic »

Offline propforward

  • Full Member
  • ****
  • Posts: 1656
  • MN, USA
Re: Hemingway Knurling Tool
« Reply #22 on: July 03, 2022, 01:33:40 AM »
Very nice result on the knurling tool. Love the picture of Alfie! Absolutely adorable. 
Stuart

Forging ahead regardless.

Online Kim

  • Global Moderator
  • Full Member
  • *****
  • Posts: 7860
  • Portland, Oregon, USA
Re: Hemingway Knurling Tool
« Reply #23 on: July 03, 2022, 05:16:58 AM »
That's a very handsome tool you made there, Gary!  :ThumbsUp:

And a very handsome pup too! :)

Kim

Offline Baltic

  • Full Member
  • ****
  • Posts: 49
  • Mt Doran, Vic Australia
Re: Hemingway Knurling Tool
« Reply #24 on: July 03, 2022, 05:26:30 AM »
Thanks Stuart & Kim, , yes Alfie has stolen my wife's & I heart !! he is a COVID rescue pup, long story, but he has found a good home now  :) and loves the workshop,

Offline Bruno Mueller

  • Full Member
  • ****
  • Posts: 121
    • My Homepage
Re: Hemingway Knurling Tool
« Reply #25 on: October 02, 2022, 12:32:00 PM »
This is my knurling tool
http://mueller-bruno.de/  http://www.bosch-combi.de/
Whoever talks shit about me behind my back is in the best position to lick my ass. 
Greetings from the southwest of Germany.

Offline Don1966

  • Full Member
  • *****
  • Posts: 6817
  • Columbia, MS
Re: Hemingway Knurling Tool
« Reply #26 on: October 05, 2022, 02:13:31 AM »
Very nicer work better yet a very nice tool…. :Love:


Don

Offline Baltic

  • Full Member
  • ****
  • Posts: 49
  • Mt Doran, Vic Australia
Re: Hemingway Knurling Tool
« Reply #27 on: October 06, 2022, 03:04:43 AM »
Nice Job Bruno, they are a fun project to make  :cheers:

Offline Del_61

  • Full Member
  • ****
  • Posts: 27
Re: Hemingway Knurling Tool
« Reply #28 on: October 06, 2022, 02:10:43 PM »
Hi all,

I made the "basic" Hemingway knurling tool many years ago - very useful tool that I use very often in my workshop. I got straight knurls for it simply because I prefer them!

Your photos of your knurling tools looks superb !!

Regards

Derek

Offline Bruno Mueller

  • Full Member
  • ****
  • Posts: 121
    • My Homepage
Re: Hemingway Knurling Tool
« Reply #29 on: November 06, 2022, 11:56:33 AM »
The embossing wheels supplied by Hemingway Kits were too finely divided for me.
I ordered suitable wheels from RC-Machines in Luxembourg and modified the unit slightly for this purpose.
http://mueller-bruno.de/  http://www.bosch-combi.de/
Whoever talks shit about me behind my back is in the best position to lick my ass. 
Greetings from the southwest of Germany.

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal