Cut Knurling. How is it done??
Close
Login to Your Account
Page 1 of 2 12 LastLast
Results 1 to 20 of 26
  1. #1
    Join Date
    Jun 2002
    Country
    CANADA
    State/Province
    British Columbia
    Posts
    2,017
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1242

    Post

    Hi All:
    I'm too cheap to blow a thousand bucks on a cut knurling tool. so I've been experimenting with knocking one together myself.
    I have a question...which part of the knurl is supposed to contact the workpiece to achieve the correct cutting action.
    I've tried canting the knurls so the leading edge is presented to the workpiece first...seems to cut really well.
    I've also presented he knurls to the work so the mid-face of the knurls contacts the workpiece and the leading and trailing edges are clear of the work.
    This still makes a great looking knurl, but the side pressure goes way up and it acts more like bump knurling, so this can't be right.
    Presenting the knurls to the work so the trailing edge contacts first cuts really aggressively on the backstroke (toward the tailstock) but far less so feeding toward the headstock, when it acts more like a bump knurl.
    So it seems to me that the leading edge should contact first and cut.
    So how do you knurl small diameters if this is true???
    The knurls are so far apart at the leading edge that I don't think I could knurl anything smaller than about 3/4" diameter.
    Smaller knurls??
    Any advice will be gratefully accepted.
    Cheers

    Marcus

  2. #2
    Join Date
    Feb 2003
    Location
    Louisville, KY, USA
    Posts
    3,247
    Post Thanks / Like
    Likes (Given)
    5
    Likes (Received)
    142

    Post

    Marcus,
    Search for a post by John Stevenson about cut knurling. He did one here or on HSM a couple years ago.
    Harry

  3. #3
    Join Date
    Oct 2006
    Location
    williamsburg va
    Posts
    7,871
    Post Thanks / Like
    Likes (Given)
    833
    Likes (Received)
    1692

    Post

    The edge of the cut knurl does the cutting.This type of knurl does not increase the diameter as does ordinary knurling.It makes a very clean knurl,though. I don't blame you for making your own up. You are aware to use square edge knurls,not beveled ones? I don't know how to do real small diameters except by crush knurling. If you look at knurled needle file handles,the knurls stand out above the size of the shank.

  4. #4
    Join Date
    Jun 2005
    Location
    Mass.
    Posts
    209
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    39

    Post

    Hi Marcus, I have a cut knurling tool I made a few years ago. It is similar to the Hardinge tool. It fits into an Aloris type holder. It will knurl diameters from about 3/16" on up. It works very well on plastics too, which can be impossible with pressure knurls. I have a working drawing for it I can fax to you, or possibly scan and e-mail. I can also snap a few digital photos.I will look for the drawing tonight. Tom Partington from Mass.

  5. #5
    Join Date
    Nov 2001
    Location
    Bentley, Louisiana
    Posts
    3,382
    Post Thanks / Like
    Likes (Given)
    7
    Likes (Received)
    12

    Post

    Tom,

    Could I also get in line for your drawing and photos? [img]smile.gif[/img]

    Richard

  6. #6
    Join Date
    Mar 2006
    Location
    Ky
    Posts
    22
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Post

    Parts
    I'd love to see the pictures and plans too.

  7. #7
    Join Date
    Mar 2003
    Location
    Dallas, Tx
    Posts
    544
    Post Thanks / Like
    Likes (Given)
    8
    Likes (Received)
    49

    Post

    Likewise!

    Thanks

    Tim

  8. #8
    Join Date
    Oct 2006
    Location
    williamsburg va
    Posts
    7,871
    Post Thanks / Like
    Likes (Given)
    833
    Likes (Received)
    1692

    Post

    Me too!

  9. #9
    Join Date
    Jun 2002
    Country
    CANADA
    State/Province
    British Columbia
    Posts
    2,017
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1242

    Post

    Hi Parts:
    That would be great!
    Seems lots of people want a copy, so if you're willing to scan and email it you'll have friends for life.
    Thanks!!
    Cheers

    Marcus

  10. #10
    Join Date
    Aug 2004
    Location
    Ohio, USA
    Posts
    2,054
    Post Thanks / Like
    Likes (Given)
    298
    Likes (Received)
    91

    Post

    Add me to the list for those eager to see Tom's knurling tool! [img]smile.gif[/img]

    Eric

  11. #11
    Join Date
    Oct 2002
    Location
    Ky.
    Posts
    179
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Post

    Please add me to the list for pics and plans of the knurling tool.
    Thanks,
    Bob

  12. #12
    Join Date
    Jun 2005
    Location
    Mass.
    Posts
    209
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    39

    Post

    Hello again. Yesterday was the first really nice day we have had here in New England in quite some time. So I got home, fired up the grill and had a couple of beers, therefore, completely forgetting to look for the drawing. I will look tonight. Tom Partington from Mass.

  13. #13
    Join Date
    Oct 2003
    Location
    East Peoria, IL, USA
    Posts
    5,105
    Post Thanks / Like
    Likes (Given)
    258
    Likes (Received)
    629

    Post

    Tom, if you dont mind I would love to have the plans as well. I'd gladly distribute them to everyone else, or host them on my website to save you the trouble.

  14. #14
    Join Date
    Jan 2005
    Location
    Illinois
    Posts
    240
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    6

    Post

    Parts,
    I would also like to jump on the band wagon for a set of those prints.
    Thanks Alot,
    Michael

  15. #15
    Join Date
    Mar 2007
    Location
    Acme, Wa
    Posts
    7
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Post

    Umm prints to make tools if you could send I would very much appreciate it or if you want I can put on my photobucket page and people can get from there.

  16. #16
    Join Date
    Jun 2005
    Location
    Mass.
    Posts
    209
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    39

    Post

    Hello again. I sent copies of the working drawing and 5 photos to both Marcus and Dan, but have not heard back yet if they received it OK. Tomorrow, I will send it to the others who requested it. Tom Partington from Mass.

  17. #17
    Join Date
    May 2005
    Country
    CANADA
    State/Province
    Ontario
    Posts
    37
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    0

    Post

    throw me in for the prints too! sounds like a great weekend project.

  18. #18
    Join Date
    May 2005
    Country
    CANADA
    State/Province
    Ontario
    Posts
    37
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    0

    Post

    throw me in for the prints too! sounds like a great weekend project.

  19. #19
    Join Date
    Oct 2003
    Location
    East Peoria, IL, USA
    Posts
    5,105
    Post Thanks / Like
    Likes (Given)
    258
    Likes (Received)
    629

    Post

    i'll post them for Tom "Parts" tonight around 5:00

  20. #20
    Join Date
    Apr 2004
    Location
    lewiston, idaho,usa
    Posts
    86
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Post

    Please forward a copy of the prints and photos to me as well: [email protected] Thank you


Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •