Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Results 1 to 5 of 5

Thread: 20mm diameter Die Adapter for 1" Diameter Tailstock Die Holder

  1. #1
    Supporting Member Paul Jones's Avatar
    Join Date
    May 2014
    Location
    Del Mar, California
    Posts
    1,231
    Thanks
    5,810
    Thanked 1,461 Times in 657 Posts

    Paul Jones's Tools

    20mm diameter Die Adapter for 1" Diameter Tailstock Die Holder

    I was taken by surprise during my simple addition of making the M2.5-0.45 and M3-0.5 thread gages (see the second page to http://www.homemadetools.net/forum/t...-caddy-55964-2 ) when I discovered the die diameters for cutting the treads were 20 mm and not 13/16" in diameters. I bought the dies years ago from Enco (now part of MSC) and never thought to check the diameters until I started using them. I do not have any die stocks or a lathe die stock for the 20 mm diameter dies.

    I made a simple 20 mm ID sleeve from 1" dia. stainless steel 303 solid rod, bored to 20.05 mm ID, with three pass-through screw holding holes for holding the dies from the set screws in a 1" (25.4 mm) tailstock die holder.

    The typical 13/16" dies are 0.8125" in diameter and the 20 mm dies are 0.7874" in diameter. Very easy to not notice the difference in diameters unless I laid one die on top of the other and looked closely to see the difference. Now that I know the difference I have found through the Internet several designs of the 20 mm diameter die stock holders for dies typically in the M2.5 to M6 ranges.

    20mm diameter Die Adapter for 1" Diameter Tailstock Die Holder-20-mm-die-sleeve-die-1-inch-dia.-tailstock-die-holder.jpg 20mm diameter Die Adapter for 1" Diameter Tailstock Die Holder-20-mm-die-sleeve-installed-into-tailstock-die-holder.jpg

    THe following are the construction steps.

    20mm diameter Die Adapter for 1" Diameter Tailstock Die Holder-20-mm-1-inch-die-sleeve-conversion.jpg 20mm diameter Die Adapter for 1" Diameter Tailstock Die Holder-using-cogsdill-burraway-deburr-top-bottom-hole-one-pass.jpg 20mm diameter Die Adapter for 1" Diameter Tailstock Die Holder-parting-off-catching-20-mm-id-die-sleeve.jpg

    20mm diameter Die Adapter for 1" Diameter Tailstock Die Holder-boring-final-size-id-20-mm-die-sleeve.jpg 20mm diameter Die Adapter for 1" Diameter Tailstock Die Holder-initial-drilling-20-mm-die-sleeve-before-boring.jpg

    THank you for looking,

    Paul Jones

    186 More Best Homemade Tools eBook
    Last edited by Paul Jones; Mar 30, 2018 at 11:26 PM.

  2. The Following 6 Users Say Thank You to Paul Jones For This Useful Post:

    jjr2001 (Mar 31, 2018), LMMasterMariner (Apr 6, 2018), PJs (Apr 4, 2018), rossbotics (Apr 1, 2018), Seedtick (Mar 31, 2018), Toolmaker51 (Mar 31, 2018)

  3. #2
    Content Editor
    Supporting Member
    DIYer's Avatar
    Join Date
    Aug 2013
    Posts
    3,055
    Thanks
    793
    Thanked 1,888 Times in 1,683 Posts


    Thanks Paul Jones! We've added your Die Holder Adaptor to our Tapping and Threading category,
    as well as to your builder page: Paul Jones's Homemade Tools. Your receipt:




    2,000+ Tool Plans

  4. The Following User Says Thank You to DIYer For This Useful Post:

    Paul Jones (Mar 31, 2018)

  5. #3
    Supporting Member rossbotics's Avatar
    Join Date
    Dec 2013
    Location
    Florida
    Posts
    731
    Thanks
    1,019
    Thanked 1,688 Times in 404 Posts

    rossbotics's Tools
    Great work Paul, I need to make a attachment like that, I'll have to put that one on my to do list
    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






  6. The Following User Says Thank You to rossbotics For This Useful Post:

    Paul Jones (Apr 5, 2018)

  7. #4
    PJs
    PJs is offline
    Supporting Member PJs's Avatar
    Join Date
    Sep 2014
    Location
    Northern CA
    Posts
    1,844
    Thanks
    8,431
    Thanked 1,129 Times in 725 Posts

    PJs's Tools
    Thank you Paul! Simple solution for the problem. Appreciate the Cogsill Burraway reference...very useful and cool tool design.

    PJ
    ‘‘Always do right. This will gratify some people and astonish the rest.’’
    Mark Twain

  8. The Following User Says Thank You to PJs For This Useful Post:

    Paul Jones (Apr 5, 2018)

  9. #5
    Supporting Member Paul Jones's Avatar
    Join Date
    May 2014
    Location
    Del Mar, California
    Posts
    1,231
    Thanks
    5,810
    Thanked 1,461 Times in 657 Posts

    Paul Jones's Tools
    Thank you Doug and PJs,

    Unless it has to be welded, the stainless steel 303 is always my choice for machining SS and has a Machinability Index of 78% (the same as ordinary 1018 CRS). Sure better than machining SS 316 with a 45% index. I like the Cogsdill Burraway tools and have been able to collect their series as new tools from 3/32” to 3/8" by setting up an automated search on eBay and then waiting for a notification when it finds a Buy-It-Now priced item. If you are not in a rush then this is a great way for finding tools. Cogsdill has a cool YouTube site showing videos some of their advanced machine tool automation tools for horizontal boring mills. Fun to watch some of the extra-long reach tools.

    Regards,
    Paul



    2,000+ Tool Plans

  10. The Following User Says Thank You to Paul Jones For This Useful Post:

    PJs (Apr 6, 2018)

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
  •