Need Help! Higby Theading


Results 1 to 3 of 3

Thread: Higby Theading

  1. #1
    Registered
    Join Date
    Jun 2009
    Location
    United States
    Posts
    17
    Downloads
    0
    Uploads
    0

    Default Higby Theading

    OK guys I need some help here. I am attempting to do my first higby thread. I have done research on this site as well as a few others and have got the basics down. Let me give a few specs to get started.

    Thread size 4 1/8x3 t.p.i ACME
    Thread length is 1.25 long.
    Using G76 cycle
    Thread tool is .250 wide
    Higby is .250 wide groove tool
    Z zero is at end of part
    Start point for the thread tool is z.333

    What is the proper way to do this? Do I need to offset any of my tools when I set them or do I set them at Z0 like I normally would?

    I understand the whole rpm/rapid determines the lead out and chord length of the chamfer. I have read that you offset the thread tool. I have read that you change the start point for the groove tool. I am confused and need some help as I can't waste another day trying to figure this out!

    Thanks in advance for all suggestions!

    Similar Threads:


  2. #2
    Member
    Join Date
    Nov 2006
    Location
    USA Texas
    Posts
    418
    Downloads
    0
    Uploads
    0

    Default

    I haven't done this alot, but last time I did it I just programmed the groove tool using the same threading macro - except the start and end were set to the start point of the first thread and the back side of it so the groove tool only went in long enough to take a bite and pulled out. I set the tool exactly as normal, no offsetting out or in.

    Regards,
    John



  3. #3
    Registered
    Join Date
    Jun 2009
    Location
    United States
    Posts
    17
    Downloads
    0
    Uploads
    0

    Default Success!

    Figured I would fill everyone in that I got it figured out. All tools are set off Z zero with no offsets. Here is the code
    N12T101(TOOL FLO ACME INSERT)
    (M3 SPINDLE ROTATION)
    G0G40G54G90G50S1000M41
    G97S250M3
    G0X4.3Z.333M8
    X4.2Z.333
    G76P010029Q0030R.001
    G76X3.755Z-1.5P1750Q0050F.333
    M9
    G28U0M5
    G0Z3
    M01
    N13T707(.250 WIDE TOOL FLO GROOVE FOR HIGBY)
    G0G40G54G90G50S800M41
    G97S130M3(RIGHT HAND)
    G0X4.300Z.5M8
    G76P010029Q0030R.001
    G76X3.755Z-.333P1750Q0050F.333
    M9
    G28U0M5
    G0Z3
    M01
    N14T606(LEFT HAND TOOL FLO,.250 WIDE INSERT)
    G0G40G54G90G50S800M41
    G97S130M4
    G0Z-1.5M8
    X4.300
    Z-1.5X4.300
    G76P010029Q0030R.001
    G76X3.755Z-1.P1750Q0005F.333
    M9
    G28U0M5
    G0Z3
    N15T909(45 DEGREE TO CHAMFER THREADS)
    G0G40G54G90G50S1000M41
    G97S250M3
    G0X4.3Z.333M8
    X4.2Z.333
    G76P010029Q0030R.001
    G76X3.755Z-1.5P1750Q0050F.333
    M9
    G28U0M5
    G0Z3
    M30

    Hope this helps someone in the future

    Last edited by CHampshire; 07-17-2011 at 10:33 AM.


Tags for this Thread

Posting Permissions

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


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Higby Theading

Higby Theading