Free 173 Best Homemade Tools eBook:  
Remove advertisements
Results 1 to 2 of 2

Thread: Stepper Motor Mount for Harbor Freight Rotary Table

  1. #1
    scorch's Avatar
    Join Date
    Apr 2015
    Location
    Oakdale, MN
    Posts
    60
    Thanks
    9
    Thanked 111 Times in 30 Posts

    scorch's Tools

    Stepper Motor Mount for Harbor Freight Rotary Table

    This is a motor mount intended to facilitate using a cheap Harbor Freight rotary table on a CNC machine. I used wood to provide a mounting surface for a stepper motor a set distance away from the existing drive shaft. This allows me to couple to and drive the existing rotary table shaft with a stepper motor. I did have to turn down the rotary table drive shaft with my lathe to fit the flexible coupling I had on hand. I also added a thrust bearing under the drive shaft collar to reduce friction.

    I intended to cast the final mount out of aluminum but so far the wood version has performed well for the few times I have used it. I just recently had the thought that it could also be 3d printed. Even if I cast it from aluminum I might 3d Print the pattern so I can make nice draft angles on the pattern for sand casting.

    The rotary table I used was the 3" ROTARY TABLE AND CLAMPING KIT - 98077 but it looks like it has been discontinued by Harbor Freight.

    Stepper Motor Mount for Harbor Freight Rotary Table-kimg0093-2-custom-.jpg
    Stepper Motor Mount for Harbor Freight Rotary Table-cad_image3-custom-.png Stepper Motor Mount for Harbor Freight Rotary Table-cad_image2-custom-.png

    Here are pictures of the rotary table mounted to my milling machine in a toolmakers vice which is clamped to the mill table. I added a pillow block on the cantilevered end of the work piece because I was getting too much deflection.

    Stepper Motor Mount for Harbor Freight Rotary Table-pa040028-custom-.jpg Stepper Motor Mount for Harbor Freight Rotary Table-pa040027-custom-.jpg

    Below is a video of the first item I made using the stepper motor mount with the rotary table. It is a cylindrical lithophane made from a chunk of PVC pipe. The CNC workflow is as follows: Flat G-Code was first generated by Dmap2gcode then the flat g-code was sent through G-Code Ripper to map the flat g-code to the rotary axis.

    When the lithophanes are back-lit (with a candle in this case) the image becomes clear.

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

    Captainleeward (03-08-2018), Paul Jones (12-08-2015)

  3. #2
    Content Editor DIYer's Avatar
    Join Date
    Aug 2013
    Posts
    3,087
    Thanks
    343
    Thanked 675 Times in 612 Posts
    Thanks scorch! We've added your Stepper Motor Mount to our CNC category, as well as to your builder page: scorch's Homemade Tools. Your receipt:



    Post your reply!
    Join 33,912 of us and get our 173 Must Read Homemade Tools eBook free.



    173 Must Read Homemade Tools

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
  •