Free 186 More Best Homemade Tools eBook:  
New: 300+ fresh build posts/day from 275 forums → BuildThreads.com

User Tag List

Results 1 to 4 of 4

Thread: Dog Point Screw / Dremel Tool Post Grinder

Threaded View

  1. #2
    Supporting Member mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    3,720
    Thanks
    376
    Thanked 7,194 Times in 2,349 Posts

    mklotz's Tools
    Whenever the end of a threaded rod is faced flat or dog-pointed, the remaining, knife-like final thread is both dangerous to hands and liable to cross-threading. Accepted practice is to generate what's called a "Higbee" thread ending. Basically, the knife edge is machined or ground back to where the thread is thicker. Near the bottom of this page...

    https://www.villamachine.com/design-for-manufacturing/

    are illustrations of a Higbee thread and another approach, a chamfered start.

    I think the method you suggest is producing something akin to a Higbee termination. But, if I understand correctly, you're also generating the dog point with the grinder. If that's the case, you could use the lathe to turn the dog point and then use your grinder setup to finish that last thread into a Higbee.

    Just some out loud speculation on my part. Good work and thanks for taking the time to present it.
    ---
    Regards, Marv

    Smart phones are to people what laser pointers are to cats
    Homo sapiens is a goal, not a definition

  2. The Following 3 Users Say Thank You to mklotz For This Useful Post:

    DIYer (Sep 2, 2022), integrator (Sep 2, 2022), metric_taper (Sep 2, 2022)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

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
  •