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cannot find a good worm gear featurescript

kees_bijkerkees_bijker Member Posts: 125 ✭✭

Hello again,

I am looking for a worm gear to worm gear drive on a 12 mm shaft (maybe 10mm) to be a 1:1 at 45 degrees. I want to 3d print this and I only found 2 feature scripts dealing with this.

The first was a globoid worm drive, which is honestly a bit weird. Then I found a promissing worm gear feature script BUT, it is quite unclear as to how it works. When I added it to my document it had one script called rot Trace and one called Envelope 3D. I really have no idea how this is supposed to work so if anybody knows where I can find the instructions OR if anybody has another way to make a nice working worm gear set, please point me in the right direction?

Comments

  • kees_bijkerkees_bijker Member Posts: 125 ✭✭

    At the moment I reverted back to my extensive Openscad library and make the worm gear there. Then I export it as an stl and import it into Onshape.

    I make a boolean with my existing parts in Onshape and I can work with it. It is a bit tedious but it works. If there was a working worm gear feature script in Onshape it would make workflow a lot smoother.

    If anybody knows more about it I would love to hear.

  • Konst_ShKonst_Sh Member Posts: 58 PRO
    edited 2:03PM

    Envolepe3d is not a specific feature for making worm gears or any king of gears, it is a generic feature to create envelope geometry, and gears of all kinds is just a single case of the envelopes. In the document where you found that feature should be configured part studios, which create a few types of gears and worm gear is also there. so you don't use the feature directly, just derive part studio that you need and specify configuration parameters

  • kees_bijkerkees_bijker Member Posts: 125 ✭✭

    @Konst_Sh

    Thank you for your time trying to help me with this. I do not understand how I can get to the document with the feature in it since I searched for the feature script using "add custom feature" ? I will try a search in the global documents to see if I can find it that way.

  • Konst_ShKonst_Sh Member Posts: 58 PRO

    this should be the original document:
    https://cad.onshape.com/documents/306c66ebd346e0f8465b844c/w/eccd3e17bdc644665635430b/e/26b2984fb7f0ffa735e4c520

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