Calliper knurling tool

[Xldevil]

Thank You,the same compliment goes to You.
Cheers,Ralph

[Jo]

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


Stock and drawings came from Hemingwaykits.

Cheers,Ralph

Nice tool Ralph.

The Hemmingway design is based on the excellent Marlco knurling tool. The one thing that it misses from the original design is the cam for fine adjustment of the top knurl. It is a very simple modification the fixed pivot on the upper arm is replaced with the cam and the pivot extended to allow a handle to be attached. Such a simple addition but the effect

Jo

[Xldevil]

Hello,Jo.
Thank You for Your nice words and Your hint.
Hemingway is offering a fine feed,actually they call it sensitive,knurling tool as well.


So far,I didn't missed a fine feed for the tasks I did.
If I will,I probably modify it in the way You suggested.
Cheers,Ralph

[Arbalist]

That second Hemmingway Knurling tool looks interesting Ralph doesn't it. From the Hemmingway site:

"This item became a standard in the toolroom; allowing operators to feel the knurl being generated and adjust the pressure to both arms using fine feed lever"

Mine works fine but that's no excuse not to build another one in the near future! 

Vic.

PS, I noted that Hemmingway supply English made Knurls. Anyone bought these, are they noticeably better than those commonly available?

[Xldevil]

Along with the knurling tool kit,I bought two sets of knurls from Hemingway.
Don't know if they are better than others,but I'm pretty satisfied with my knurling.
Anyway,who likes to buy far east,if one can get European made?

[billmac]

This is my version of the Marlco/Hemingway knurler with sensitive feed.

It works very well indeed and is not hard to make.

[awemawson]

Certainly looks the business 

Superb finish 

[ksor]

Wav, looks really nice 

 

[Arbalist]

 Nice work billmac!

[Red Dog]

  Just priced the Hemmingway kit (sensitive knurler) not going to fork out over a $150 AU  just to get the material,I'll make a copy on this one

[rotorhead]

That looks a very functional piece of mechanical art, well done and thanks for sharing.

[Spurry]

Neat idea to cut away the tool holder like that. Might have to do that with mine. 
Pete