3D printing - A look at the FreeCAD Gears Workbench

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  • Опубликовано: 4 ноя 2024

Комментарии • 26

  • @owlcricker-k7ulm
    @owlcricker-k7ulm 7 дней назад +4

    It is nice to see you feeling well enough to engage in strenuous mental challenges!

  • @lysippus
    @lysippus 6 дней назад

    thanks for these 3d printing videos, its getting myself back 'in gear' for more printing projects

  • @SpinStar1956
    @SpinStar1956 7 дней назад +3

    Hi Kevin, good to see you again!
    73…

  • @hawkinscsa
    @hawkinscsa 7 дней назад +2

    That really simplifies gears!

  • @RESlusher
    @RESlusher 7 дней назад

    Ooooooh, thanks Kevin! Now you've got me looking at getting one of those fancy 3D printers! 😁

  • @DonDegidio
    @DonDegidio 7 дней назад

    Hi Kevin,
    Hope your health is still improving. Great explanation on how to make gears in FreeCad. Easily understood. Stay safe. 73 WJ3U

  • @Davidjb37721
    @Davidjb37721 7 дней назад

    Thanks for your help 😊

  • @LudwigSpiegel
    @LudwigSpiegel 7 дней назад

    Thank you for sharing

  • @sleepib
    @sleepib 6 дней назад

    Better to set the clearance/backlash in the gear data rather than scaling in the slicer.
    If you're trying to match another gear, pressure angle also matters. If you don't know, you can put the mating gear on a flatbed scanner, make a copy of it, then tweak pressure angle until the tooth profile looks right, and then look if it's close to something commonly used, like 20 or 14.5 degrees.
    Also, if you're using plain helical gears rather than herringbone, the beta of mating gears should be the same number but opposite sign.

    • @loughkb
      @loughkb  6 дней назад

      3D printer dimensional accuracy varies quite a bit. Many of the lower end printers will error as much as 1 to 2/10 of a millimeter. Since the people that are downloading the model don't have access to the CAD file, scaling in the slicer is the only option they have.
      Thanks for the rest of that information though, very helpful.

  • @protektwar
    @protektwar 7 дней назад

    nice tutorial! I know there should be another rule for the gears which says that the teeth of the wheels at the starting point should not meet, once the compete rotation of the big wheel is performed. meaning the sun and planetary should be different in size / nr of teeth.

    • @loughkb
      @loughkb  7 дней назад +2

      Well I have seen several planetary arrangements where the sun and planet gears are the same size and number of teeth. And they seem to work just fine. I just built a dual stacked planetary transmission with a ratio of 16 to 1 and it's smooth as butter. And the planetary and sun gears have the same number and size of teeth.

  • @moimeme8696
    @moimeme8696 7 дней назад

    Tnx from FarWest of France

  • @kiethcrimin2837
    @kiethcrimin2837 6 дней назад

    Howdy, see ya soon😅

  • @gmanshackshack6822
    @gmanshackshack6822 6 дней назад

    How do you know where to place axles so the gears mesh?

    • @loughkb
      @loughkb  6 дней назад +1

      There are two diameters listed in the data for the gear. Well, three actually. The first two are a diameter to the outer edge of the teeth and then a diameter to the root of the teeth. Those two are the ones you need. You cut them in half to get the radius, and then the distance between the center of the gears is 1 plus the other. The radius out to the end of the teeth on one gear plus the radius to the root of the teeth on the other gear is the distance between the center points.

  • @bentrider1972
    @bentrider1972 6 дней назад

    Sadly i can not print the ring gear..Print is being filled in and a top and bottom is on it :/

    • @loughkb
      @loughkb  6 дней назад

      It's got to be a setting in your slicer.
      If you're using Cura, make sure "Remove all holes" is turned off.

    • @ianhoworth7298
      @ianhoworth7298 6 дней назад

      @@loughkb I had the same problem, the fix was to remove the chamfers on the outside of the ring gear.

    • @loughkb
      @loughkb  5 дней назад

      That's very strange. What slicer are you using.? There's no logical reason that that feature of the geometry would cause that behavior. Unless maybe you set the chamfer too deep and it intersected with the root of the gear teeth? No, That couldn't have been it freeCAD would have failed the chamfer if it crossed edges.

    • @bentrider1972
      @bentrider1972 5 дней назад

      @@loughkb Ok I got it to print but had to come up with my own fix kinda..After trying every slicer I have (Creality,FreeCad,and Cura) I pulled it into TinkerCad and zoomed in you see all the huge holes that were stopping it..I made a new outside ring to go on the outside of the gear teeth and it now prints great 😁...Only problem I have now is trying to keep one for myself..Everyone that sees it wants it LOL

    • @loughkb
      @loughkb  4 дня назад

      I just went and checked the model file on thingiverse and it was borked. I don't know how that happened! I've fixed the file so nobody else will have trouble with it. I hope.

  • @Charles-g5d7k
    @Charles-g5d7k 7 дней назад

    🛵🛵🛵🛵🛵🛵🛵👋🏻