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Thread: variable radius cutter

  1. #1
    Supporting Member C-Bag's Avatar
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    variable radius cutter

    My current project is to do some metal forming so I had to make concave and convex pieces(anvil?foot?) to do the actual forming. Since it was going to be a process where I'd start out with a guestimate and then cut a tighter and tighter radius until I compensated for springback I decided I needed a way to make a repeatable and precise way to do it. I scored some 80/20 2020 10 series aluminum extrusion off the local Craigslist. So I used that and some rack and pinion's I got off ebay along with some 80/20 linear bearings. Along with the rotary table off my mill. I hope the pix will be self explanatoryvariable radius cutter-concavecut.jpg.

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  2. The Following 8 Users Say Thank You to C-Bag For This Useful Post:

    EclecticNeophyte (Aug 3, 2015), high-side (Jul 4, 2019), Jon (Aug 3, 2015), kbalch (Aug 3, 2015), mr mikey (Aug 31, 2022), olderdan (Oct 28, 2017), Paul Jones (Aug 1, 2015), PJs (Aug 5, 2015)

  3. #2
    Supporting Member Altair's Avatar
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    Nice setup C-bag. Easy to build and precise.

    Al

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  4. #3
    Supporting Member C-Bag's Avatar
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    Thanks Altair. 80/20 is the bomb for doing this kind of stuff.

    I'm new to this forum but on other forums that seem to run the same software. So I thought the process to upload pix would be the same.....but it didn't seem to want to let me upload more than one pic. I was waiting to see if anybody even noticed this or wanted the other pix to see if I should give it another try for the different views and cutting convex and concave.

  5. #4
    Supporting Member C-Bag's Avatar
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    another try on the other pix

    variable radius cutter-concavecut2.jpg variable radius cutter-convexcut.jpg

    variable radius cutter-adjusterdetail.jpg variable radius cutter-finishfit.jpg

  6. The Following 3 Users Say Thank You to C-Bag For This Useful Post:

    high-side (Jul 4, 2019), olderdan (Oct 28, 2017), PJs (Aug 5, 2015)

  7. #5
    kbalch's Avatar
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    Thanks C-Bag! I've added your Variable Radius Cutter to our Metalworking category, as well as to your builder page: C-Bag's Homemade Tools. Your receipt:


  8. #6
    Supporting Member C-Bag's Avatar
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    Wow, thanks Ken, so does that mean I just post other projects to this forum and you transfer or just go to "my" homemade tools?

    Sorry just a noob.

  9. #7
    kbalch's Avatar
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    Yep, any of your homemade tools that you post in the Homemade Tools subforum will be added to the site and your HomemadeTools.net builder page automatically updated.

    Just start a new thread for each tool and we'll take it from there.

    Non-tool items should be posted in the Not a Tool, but Homemade subforum.

    We really appreciate your being part of the community!

    Ken



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