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  • #31
    I found these radius gauges on Thingiverse and printed out one of each. I found I had to tweak the indicator or pointer part as it was not a good fit on the scale. The post that engages the hole in the scale was sized wrong. I don't think it was an issue with my printer or the slicer software because when I took the models into SketchUp and measured the diameter of the post it was exactly 1 mm smaller in diameter than the mating hole in the scale. If it had been some odd fraction of a mm then I would suspect the printer of the slicer software. It wouldn't have been me or SketchUp because I did not manipulate the .STL file before printing, I just loaded the file into the slicer and generated the g-code and went to print. Something I don't do that often but this time there was nothing I wanted to change and it seemed straight forward enough there was no need to check. Wrong.

    Anyway, a quick tweak and I reprinted the pointers and all is well. While not super accurate they will help measure those larger diameter arcs and circles. The radius range is up to ~18 inches or 50 cm depending on which version you are using.

    Only change I made was to include the units on the scale half of the gauge, plus fixing the diameter of the post that connects the two halves together.

    If you look close at the second photo you may be able to see that the yellow post is undersize. That's the part I corrected. When I reprinted that part it snapped together as it should and moves smoothly. There is not enough friction though to hold the setting but I think I have worked out a way to fix that so a version 3 may be coming someday. I have other things to work on right now that don't involve the 3D printer.

    Here is the original that I found on Thingiverse: https://www.thingiverse.com/thing:910616

    And this is my remix in which I added the units and changed the post diameter: https://www.thingiverse.com/thing:5481465


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    "It's a table saw, do you know where your fingers are?" ? Bob D. 2006
    "?ǝɹɐ sɹǝƃuıɟ ɹnoʎ ǝɹǝɥʍ ʍouʞ noʎ op `ʍɐs ǝlqɐʇ ɐ s,ʇı"

    https://www.youtube.com/user/PowerToolInstitute
    http://www.cordlessworkshop.net
    https://www.youtube.com/channel/UC1p...qcZKHyrqKhikFA
    ----

    Comment


    • #32
      I did a remix of the radius gauge and turned it into an angle gauge. It has a limited range but that's just because of the way its constructed.
      More an exercise to see if I could. Plenty of angle gauges on the market so no need to make a 'new' one. It was fun figuring stuff out in SketchUp.

      This will read an inside or outside angle up to a bit over 45 degrees. I may make another one that will read to 90 degrees some day. But I have no idea if or when that might happen. I was just playing around today and decided to give this a shot.

      This is direct reading to every degree. The end of the pointer has a window in it the same size as the hash marks. So when it it lined up on the mark you will see the hash mark in the window.

      You can find it here: https://www.thingiverse.com/thing:5484055

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      "It's a table saw, do you know where your fingers are?" ? Bob D. 2006
      "?ǝɹɐ sɹǝƃuıɟ ɹnoʎ ǝɹǝɥʍ ʍouʞ noʎ op `ʍɐs ǝlqɐʇ ɐ s,ʇı"

      https://www.youtube.com/user/PowerToolInstitute
      http://www.cordlessworkshop.net
      https://www.youtube.com/channel/UC1p...qcZKHyrqKhikFA
      ----

      Comment


      • Bob D.
        Bob D. commented
        Editing a comment
        I'm not happy with how this turned out so going to revise the pointer. Will probably do away with the window. If I keep it then it needs to be larger. It's too small to see precisely so I'll investigate some other options to achieve the same result.

    • #33
      Made a 1-2-3 Block today. Nowhere near as precise as a machined steel 1-2-3 block but good enough for woodworking for sure and since it's made from PLA plastic no worries about hitting it with a bit or blade it will get cut just like wood. Took just under 4 hours to print but that was at a fine resolution. I could probably knock 30 minutes or more off that time by adjusting the print settings mostly with a .30mm layer height in place of the .20mm height I printed this at.

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      I made a couple V-blocks a few days ago and a clamp to go with them. These are useful for holding round objects for drilling. and other operations. Again not something you would choose for machining operations but for woodworking they are fine.

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      "It's a table saw, do you know where your fingers are?" ? Bob D. 2006
      "?ǝɹɐ sɹǝƃuıɟ ɹnoʎ ǝɹǝɥʍ ʍouʞ noʎ op `ʍɐs ǝlqɐʇ ɐ s,ʇı"

      https://www.youtube.com/user/PowerToolInstitute
      http://www.cordlessworkshop.net
      https://www.youtube.com/channel/UC1p...qcZKHyrqKhikFA
      ----

      Comment


      • Bob D.
        Bob D. commented
        Editing a comment
        I revised the print settings and got this down to 3h19m by adjusting the resolution to 0.25mm and the top and bottom layers to 4 (or 1.0mm thick @ 0.25mm resolution).
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