Free 186 More Best Homemade Tools eBook:  
Coupon code for 40% off membership: SUMMER24

User Tag List

Results 1 to 4 of 4

Thread: I made a bearing bump tool for my Mini Lathe

  1. #1
    Supporting Member Guy Marsden's Avatar
    Join Date
    Mar 2022
    Maine USA
    Thanked 84 Times in 20 Posts

    Guy Marsden's Tools

    I made a bearing bump tool for my Mini Lathe

    A bearing bump tool makes it much simpler to center stock with long stick-out in the 3-jaw chuck. No more tap-tap-tapitty-tap! I saw James use one on his Clough42 YouTube channel and had to make one!

    Save 40% on Membership
    "Do or do not, there is no try" - Yoda

  2. The Following 5 Users Say Thank You to Guy Marsden For This Useful Post:

    Claudio HG (Mar 26, 2023), cognitdiss (Mar 26, 2023), EnginePaul (Mar 20, 2023), Jon (Mar 17, 2023), Scotty1 (Mar 20, 2023)

  3. #2
    Content Editor
    Supporting Member
    DIYer's Avatar
    Join Date
    Aug 2013
    Thanked 1,859 Times in 1,659 Posts

    Thanks Guy Marsden! We've added your Bearing Bump Tool to our Lathe Accessories category,
    as well as to your builder page: Guy Marsden's Homemade Tools. Your receipt:

    2,000+ Tool Plans

  4. #3
    Supporting Member metric_taper's Avatar
    Join Date
    Mar 2017
    Marion, Iowa
    Thanked 257 Times in 153 Posts

    metric_taper's Tools
    I'm going to remake the two I have, one for my big lathe that uses 400 series QCTP, and the other for my 100 series QCTP. The problem I ran into, I had to swap the roller around to go from doing a thin plate in the chuck to a short cylinder. The steel square stock I have is too short to just add the second bearing. That is it's too short for the tool holder, as I used scrap brazed tool shanks to make these.
    The other thing, you don't need to notch out and have the bearing installed with its axis perpendicular to the square stock, rather drill right into the end of the stock and reduce the extra machining. I'm not picking apart what Clough42 did, but I'm guessing he copied someone else's design.
    These really are handy.
    Looks like keystock was used for the project, that's hard steel.
    I'm thinking round bar could be used and a boring tool holder. This makes it a pure lathe operation. But square is a 4 jaw chuck setup, and it's good to swap chucks out and dial stuff in.
    Last edited by metric_taper; Mar 21, 2023 at 07:01 AM.

  5. The Following User Says Thank You to metric_taper For This Useful Post:

    Guy Marsden (Mar 20, 2023)

  6. #4
    Claudio HG's Avatar
    Join Date
    Sep 2019
    Venetian Alps, EU
    Thanked 173 Times in 48 Posts

    Claudio HG's Tools
    This is definitely a tool that I'll make too. Thanks for posting.

    2,000+ Tool Plans

Thread Information

Users Browsing this Thread

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

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