I would like to model a car differential gear set for a personal project.

This uses Hypoid gear drive - similar to this:
https://www.thingiverse.com/thing:1888576

The Hypoid gear goes a bit beyond the usual spiral bevel gear libraries, as
there's an offset shaft as well as curved teeth.

I've found a few examples of people having done this in Blender, showing
their working, and there are online calculators, so eventually I imagine I
could recreate these - but would be brilliant if this already exists in
OpenSCAD - anybody seen this please?

Cheers,

Alex Gibson

admg consulting

edumaker limited

.        Project management

.        Operations & Process improvement

.        3D Printing

I tried to generate hypoid gears years ago, but my gear theory was bad at the
time.  Maybe I should take another crack at it.

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Sent from: http://forum.openscad.org/

I could only encourage this :)

Some research aids!

This is a true hypoid already created as I mentioned already:
https://www.thingiverse.com/thing:1888576
This actually comes with a full tutorial for creating it in Blender - and
even better from the maker, an online calculator:
http://www.otvinta.com/hypoid.html

Here are a few already good OpenSCAD gear libraries, it would be great to
build on one of these to give any new function maximum reach - one that is
referenced by a lot of extruder designs:
https://www.thingiverse.com/thing:3752

...and another which is very comprehensive and includes planetary gearboxes,
herringbone bevel gears, in German but I could help with anything Google
Translate doesn't make sense of!
https://www.thingiverse.com/thing:1604369
(apparently sometimes this generates non-manifold issues but I've not yet
had that issue...

Here is an unfinished library that contains good stuff too:
https://www.thingiverse.com/thing:881568

Alex Gibson

admg consulting

edumaker limited

. Project management
. Operations & Process improvement
. 3D Printing

-----Original Message-----
From: Discuss [mailto:discuss-bounces@lists.openscad.org] On Behalf Of
NateTG
Sent: 20 February 2020 18:53
To: discuss@lists.openscad.org
Subject: Re: [OpenSCAD] Hypoid gear modelling - been done in OpenSCAD?

I tried to generate hypoid gears years ago, but my gear theory was bad at
the
time.  Maybe I should take another crack at it.

--
Sent from: http://forum.openscad.org/

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