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Thread: Magnetic drive for my pantograph pattern torch

  1. #1
    Supporting Member Frank S's Avatar
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    Magnetic drive for my pantograph pattern torch

    At long last I finally got around to making the drive unit for my pantograph pattern torch
    Pantogragh style tracing torch project

    in the past I have used it a few times but always just clamped a bent bolt to the top bar in alignment with the torch and had a temporary pattern support clamped on as well. I could make duplicate parts manually but it was really more trouble than it was worth.
    I finally pulled one of those R-tu-its from the pile and started in making the drive unit for it
    Starting with a 12Vdc linear actuator motor, a worn out die grinder, a cylindrical NEO magnet this is what I came up with
    Magnetic drive for my pantograph pattern torch-img_20220831_151837mgd.jpg
    I shortened the acme screw and pressed hub on the end of it to mate up with the magnet
    Magnetic drive for my pantograph pattern torch-img_20220831_172230pt.jpg
    I did the same thing to the die grinder rotor then by magnetic connection only picked up a 20 inch heal bar with it while holding it horizontally, Seems plenty strong
    Magnetic drive for my pantograph pattern torch-img_20220831_175700mgd.jpg

    Magnetic drive for my pantograph pattern torch-img_20220831_175819pt.jpg
    I then drilled and bored out the die grinder housing so I could take advantage of the shaft bearing
    Magnetic drive for my pantograph pattern torch-img_20220901_131346mgd.jpg
    then I bored out the actuator housing so the die grinder could fit inside
    Magnetic drive for my pantograph pattern torch-img_20220901_144601mgd.jpg
    After shortening everything and assembling this is what it looks like
    Magnetic drive for my pantograph pattern torch-img_20220902_135851mgd.jpg
    Next to make a mount for it

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  2. The Following 3 Users Say Thank You to Frank S For This Useful Post:

    Jon (Sep 8, 2022), mwmkravchenko (Sep 14, 2022), Toolmaker51 (Sep 9, 2022)

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    Thanks Frank S! We've added your Pantograph Drive Unit to our Cutting Torches category,
    as well as to your builder page: Frank S's Homemade Tools. Your receipt:




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

    Bony (Sep 11, 2022)

  5. #3
    Supporting Member Bony's Avatar
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    That's a good idea using an linear actuator Frank, especially if you can vary the rotation speed. Thanks, I think I'll set up a pantograph for my plasma, cheaper, quicker & easier than going down the CNC path. (I'd still like a decent CNC laser cutter though.)

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    Supporting Member Frank S's Avatar
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    Quote Originally Posted by Bony View Post
    That's a good idea using an linear actuator Frank, especially if you can vary the rotation speed. Thanks, I think I'll set up a pantograph for my plasma, cheaper, quicker & easier than going down the CNC path. (I'd still like a decent CNC laser cutter though.)
    Bony this is the power supply unit I bought to control the drive motor speed
    Attached Thumbnails Attached Thumbnails Magnetic drive for my pantograph pattern torch-714tl-pwpyl._ac_sl1500_.jpg   Magnetic drive for my pantograph pattern torch-s-l1600-1-.jpg  
    Last edited by Frank S; Sep 12, 2022 at 10:36 AM.
    Never try to tell me it can't be done
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  7. #5
    Supporting Member Frank S's Avatar
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    Ok don't know how the fishermans mate got in there but the controller was what I was trying to show



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