Free 186 More Best Homemade Tools eBook:  
Get 2,000+ tool plans, full site access, and more.

User Tag List

Page 2 of 2 FirstFirst 1 2
Results 11 to 13 of 13

Thread: Hand Tapping Machine

  1. #11
    Supporting Member rossbotics's Avatar
    Join Date
    Dec 2013
    Location
    Florida
    Posts
    730
    Thanks
    1,019
    Thanked 1,639 Times in 402 Posts

    rossbotics's Tools
    Hi Jamman
    Looks good man, your doing a good job from what I can see, I'm not up to par on rifling a barrel, I have made allot of gun parts though, and have made some custom rifles from scratch, but I always bought a chambered and rifled barrel, I would though do the outside contouring of the barrel,threading etc. I'm afraid I wouldn't be to much help to you on your project, but do keep me posted on your progress, I would love to see your work when you finally get it all together,

    Good Luck
    Doug

    186 More Best Homemade Tools eBook
    Comments are always welcome
    Doug

    Subscribe to my you tube channel

    https://www.youtube.com/channel/UCDD..._as=subscriber



    Tool Plans for Sale by rossbotics






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

    Paul Jones (Apr 5, 2016), PJs (Apr 5, 2016)

  3. #12
    Supporting Member
    Join Date
    Mar 2016
    Location
    San Diego Ca.
    Posts
    44
    Thanks
    1
    Thanked 8 Times in 6 Posts
    thanks bud

    2000 Tool Plans

  4. #13
    Supporting Member Frank S's Avatar
    Join Date
    Aug 2015
    Location
    Peacock TX
    Posts
    11,179
    Thanks
    1,974
    Thanked 8,766 Times in 4,195 Posts

    Frank S's Tools
    HI Rossbotics; I really like your taping fixture A chuck removed from a "T" handle tap wrench might serve better than a 3 jaw Jacobs I'm not thinking of a Starrett 93c but a Vermont American 21916 T-Handle might do well. Or if you have an index fixture you could hex grind the tap shanks. My luck with trying to hold taps in my drill press always slip in the chuck no matter how tight I try and tighten them.
    Jamman I don't want to hijack this thread but a .22 rifle has a bore of .22/100 nominal 5/16" is .312" I trust that you are going to sleeve this with a tube that will press fit in the 5/16" bore then ream and hone before attempting to rifle the bore. Do you know what grain bullet you plan to fire through it? because this will also determine the amount of twist you should target for.
    the twist in the riflings are all over the board ranging from a 1 in 14 for 48 to 50 grain to 1 in 7 for a 60 or higher with the 1 in 9 or 10 being quite popular in small bores
    Spiral end mills the diameter you would need to regrind into a button would need to be at least a 6 fluted mill an odd numbered flute would be better for centering in the bore but I've never seen a 7 fluted end mill that small which would also have a very tight spiral of around 1 in 1.5 to 1 in 2 far too tight to be reground into a button. but if very careful attention was paid to the regrind of a .250" end mill there might be enough material in the cross section of the fluted to yield the features of the button when the grinding was completed.
    I suppose you could do this with a 2 fluted mill but it would be very difficult if not nearly impossible to hold it perfectly centered as it finished forming the groves additionally you would still need a fixture such as one I started designing for my Clarkston tool grinder which I no longer have
    this 5 axis tooling fixture that I hope to one day build and perfect would probably be what would be needed to make a proper button
    Hand Tapping Machine-tooling-holder-rotary-slide-profile1.jpg
    My apologies for the hijack



    186 More Best Homemade Tools eBook
    Never try to tell me it can't be done
    When I have to paint I use KBS products

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
  •