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Thread: Mini lathe collet draw bar & hand crank

  1. #1
    bobs409's Avatar
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    Lightbulb Mini lathe collet draw bar & hand crank

    Mini lathe collet draw bar & hand crank:

    Draw bar:
    I recently made a draw bar for my mini lathe made of 1.25 inch 1018 steel and 3/8 threaded rod. I made the end long enough so it protrudes out through the side cover. I milled 2 slots into it for a 7/8 inch wrench. It's cone shaped end centers itself every time. This gets used a lot!

    Hand crank:
    I also made a hand crank for doing short threading operations. Not something you need every day but nice to have! It's easier and safer just cranking the lathe for short threading rather than trying to stop on a dime at the end. It's also nice when using a tap or die in the lathe.

    The crank body is made of aluminum square and flat material. Handle is made of aluminum with a bolt that has had it's head turned round inside of it. (known as a cheese head bolt)

    The deep hole in the body fits over the end of the draw bar above and is secured with a cap screw. (to be changed to a set screw later, I just didn't have the correct one on hand) This set up works whenever I'm using my MT3 collets however if I use my chuck, this hand cranks larger hole fits onto the spindle nut and has locating pins and a small set screw to secure it) Of course, in this case the side cover must be removed.

    Just 2 more hand made tools to make my life easier. LOL

    Mini lathe collet draw bar & hand crank-dscn7482.jpg
    Mini lathe collet draw bar & hand crank-dscn7483.jpg
    Mini lathe collet draw bar & hand crank-dscn7480.jpg
    Mini lathe collet draw bar & hand crank-dscn7481.jpg
    Mini lathe collet draw bar & hand crank-dscn7484.jpg
    Mini lathe collet draw bar & hand crank-dscn7485.jpg

  2. The Following 4 Users Say Thank You to bobs409 For This Useful Post:

    C-Bag (01-28-2017), olderdan (01-29-2017), Paul Jones (01-28-2017), Seedtick (01-31-2017)

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    C-Bag's Avatar
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    Thanks bobs409. I was needing to make a drawbar, but was going to just make a plug with some all thread. This is much nicer and provides more function. With this setup I could also mount degree wheel or index besides the hand crank. Is the taper on the drawbar just like 45?

  4. The Following User Says Thank You to C-Bag For This Useful Post:

    bobs409 (01-28-2017)

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    If memory serves, I think it was about 30 degrees. Whatever looks good for your spindle will be fine.

    I was thinking about a degree wheel myself sometime. Great minds think alike I guess. LOL


    Thanks.

    Quote Originally Posted by C-Bag View Post
    Thanks bobs409. I was needing to make a drawbar, but was going to just make a plug with some all thread. This is much nicer and provides more function. With this setup I could also mount degree wheel or index besides the hand crank. Is the taper on the drawbar just like 45?

  6. #4
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    Thanks bobs409! We've added your Drawbar to our Lathe Accessories category,
    as well as to your builder page: bobs409's Homemade Tools. Your receipt:




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

    bobs409 (01-31-2017)

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    Thanks bobs409! We've added your Hand Crank to our Lathe Accessories category,
    as well as to your builder page: bobs409's Homemade Tools. Your receipt:





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

    bobs409 (01-31-2017)

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