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Thread: Motorized rotary table

  1. #1
    Supporting Member tonyfoale's Avatar
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    Motorized rotary table

    Quote Originally Posted by thehomeengineer View Post
    I have posted the code on HMT (above)
    Please note I am sure there is a better way to programme but this is my first attempt. If improvements can be made to both codes I would be interested as this is been a long and sometimes frustrating, step learning curve for me and it has taken well over six months to get it to finally work. Lots of help and research on the net to try and understand C+ code. This was suppose to be a simple index project but grow and grow as I realised what could be achieved with the Arduino. I am more than happy for members on HMT to rip the code apart and tell me how I could improve or made it better. I feel the programming is as messy as the wiring in the control box but it does work.
    The Home Engineer
    I made a similar project earlier this year but I had forgotten about your project when I did it. Considering that, it is surprising how similar the final results are.

    It has different modes selected by the letter keys, viz:
    * Divide a revolution into N parts and advance one for each button press. (Shown in video)
    * Continuous rotation at a specified speed until stopped (also in video)
    * Advance to a specified number of degrees.

    Anyway the purpose of this post is to enquire whether you are still interested in looking at different coding possibilities. I am quite willing to share my code if you wish. It is only 250 lines and uses a single Arduino Nano. In the meantime here are some pix. Click on them for full size.

    Motorized rotary table-rotab044.jpg Motorized rotary table-rotab045.jpg

    The controller. This contains a simple transformer/diode bridge and capacitor power supply for the motor as well as a small power supply for the Nano and display.

    Motorized rotary table-rotab042.jpg Motorized rotary table-rotab039.jpg

    This shows the cardboard templates for a pneumatic brake. Which locks the table when stopped. The software controls this automatically.

    I use a closed loop stepper and controller. This ensures no lost steps and the controller takes care of everything.
    Here is a one minute video of it in action

    Attached Thumbnails Attached Thumbnails Motorized rotary table-dsc_4895.jpg  

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  2. The Following 14 Users Say Thank You to tonyfoale For This Useful Post:

    Bummers (May 31, 2023), byates (Jun 1, 2023), desbromilow (May 31, 2023), Home-PC (Jun 9, 2023), Inner (May 31, 2023), Jon (May 31, 2023), mr mikey (Jun 1, 2023), mwmkravchenko (Jun 1, 2023), nova_robotics (Jun 2, 2023), phred (May 31, 2023), schatten (Jun 1, 2023), that_other_guy (Mar 23, 2024), Tonyg (Jun 1, 2023), yvonf (Jun 8, 2023)

  3. #2
    Supporting Member tonyfoale's Avatar
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    I forgot to add that I can feed directly into the motor driver from my mill CNC system turning into a 4th axis.

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    byates (Jun 1, 2023)

  5. #3
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    Thanks tonyfoale! We've added your Motorized Rotary Table to our Machining category,
    as well as to your builder page: tonyfoale's Homemade Tools. Your receipt:




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    Looks like a nice setup. Are you able to adjust the speed during any operation like when moving by degrees? I am interested in getting the code.

    Randy

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    Supporting Member metric_taper's Avatar
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    Tony, would be real handy just to post the 250 lines here, as it's easy to copy paste into an Arduino sketch.
    Thank you.

  8. #6
    Supporting Member tonyfoale's Avatar
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    Quote Originally Posted by metric_taper View Post
    Tony, would be real handy just to post the 250 lines here, as it's easy to copy paste into an Arduino sketch.
    Thank you.
    I'll dig it out and post it.

  9. #7
    Jon
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    Six posts split out from this thread by thehomeengineer: rotary table driven by stepper motor controlled by 2 Arduino's
    Last edited by Jon; Jun 2, 2023 at 10:33 AM.

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    that_other_guy (Mar 23, 2024)

  11. #8
    Jon
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    Congratulations tonyfoale - your Motorized Rotary Table is the Homemade Tool of the Week!

    This is not only a nice powered rotary table, but it's especially interesting to hear that it connects to your mill CNC.

    Some more nice builds from this week:

    ER40 Chuck Runout Fix by Alans Home Workshop
    Compressed Air Torch by celsoari
    Drawbar by winkys workshop
    Rotary Knife by Philip Davies
    Workshop Trolley by Kwandotechnic
    Chuck Backplate by Improvised DIY
    Drill Bit Sharpening Fixture by orioncons36
    Mini Hand Drill by My MiniCrafts


    tonyfoale - we've added your tool entry to our All Homemade Tool of the Week winners post. And, you'll be receiving a $100 online gift card, in your choice of Amazon, PayPal, or bitcoin. Please PM me your current email address and gift card choice and I'll get it sent over right away.


    This is your 17th Homemade Tool of the Week win! Here are all of your winning tools:


  12. #9
    Supporting Member Saltfever's Avatar
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    Oh my, Tony you could be at the F-1 race this weekend and here you are posting to HMT!

    What is the resolution of a step? (0.1, 0.01, etc., degrees)

  13. #10
    Supporting Member tonyfoale's Avatar
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    Jon,

    I certainly did not expect TOTW. It started as a delayed response to the similar post by the thehomeengineer which also won a TOTW, and when split into its own post I intended to add a lot more detail, and still will. Anyway I will gratefully accept the award with a feeling of modesty.

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