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Thread: Rotary table

  1. #1

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    athomp's Tools

    Rotary table

    I wanted a rotary table for my mill but didn't want to have to pay big money for a decent sized one so I made my own 11" table. It's made out of 1/2" plate, 2 brake rotors and a ring gear off a lawnmower engine. I turned a spindle on the lathe and welded it to the bottom plate. A brake rotor is mounted on the spindle. Another brake rotor with the hub cut out is mounted upside down on the lower one. The ring gear is riveted to a piece of 16 gauge sheet metal and sandwiched between the two rotors. I made a worm gear on the lathe. Two thumb screws adjust the worm gear against the ring gear to eliminate backlash. There is a bolt on either side that can be screwed in against the lower brake rotor to lock the table in place. The gear ratio is a bit odd at 97:1. The whole thing weighs 123 lbs.
    Rotary table-image.jpgRotary table-image.jpgRotary table-image.jpgRotary table-image.jpgRotary table-image.jpg
    Last edited by athomp; 01-09-2018 at 06:45 PM.

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    almarghi (09-22-2018), blkadder (05-17-2018), Captainleeward (01-12-2018), Gary A. Wills (01-13-2018), jlrice54 (05-17-2018), Kevic (01-03-2019), KustomsbyKent (05-17-2018), mwmkravchenko (05-17-2018), Neil Jensen (01-10-2018), NortonDommi (01-11-2018), Paul Jones (01-12-2018), PJs (01-04-2019), Seedtick (01-11-2018), sossol (01-10-2018), thehomeengineer (01-10-2018), Toolmaker51 (05-19-2018), Tule (01-04-2019), volodar (01-04-2019)

  3. #2
    Content Editor DIYer's Avatar
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    Thanks athomp! We've added your Rotary Table to our Machining category,
    as well as to your builder page: athomp's Homemade Tools. Your receipt:




  4. #3

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    Nice job! How did you mark the rotary table tick marks with..out...a ......rotary.........table?

  5. #4

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    athomp's Tools
    Quote Originally Posted by mudnducs View Post
    Nice job! How did you mark the rotary table tick marks with..out...a ......rotary.........table?
    Thanks.
    I printed out a 11" degree wheel off the Internet and glued it to the bottom of the table and then used a punch set to make the degree marks.

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

    Kevic (01-03-2019), PJs (01-04-2019)

  7. #5
    NortonDommi's Avatar
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    Beautiful repurposing. Looks like it could take a good load.

  8. #6
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    I like this a lot. I have been curious about how to go about making one of these.
    ...Semper Fidelis...

  9. #7
    Toolmaker51's Avatar
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    Sorry to have missed this first time around. Great job on a big project, not to mention effective design incorporating unmatched components. Have to mention rotary tables/ indexers are my first line answer to tricky contours and spacing.
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

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    PJs (01-04-2019)

  11. #8
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    Nice work. Would love to see some of the worm gear turning? Also how you got the lawn mower ring gear mounted and in mesh with the home built worm?

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    PJs (01-04-2019)

  13. #9
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    Nice looking!. Where did you get the actual table portion? Did you machine it yourself?
    And how much rocking deflection do you get under a heavy load? It seems like three roller bearings mounted underneath the perimeter of the lower rotor would prevent it from rocking.


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    Last edited by bobneumann; 01-30-2019 at 09:10 AM.

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