[OpenSCAD] geared part

Rob Sherwood rob.sherwood at gmail.com
Fri May 31 01:36:38 EDT 2019


The MCAD library that is part of OpenSCAD is not a bad place to start
(https://github.com/openscad/MCAD).  I've found a few bugs (and
submitted a few patches :-) in it (specific issue about pitch diameter
being calculated incorrectly) but largely works for me (TM).

Hope that helps,

- Rob
.

On Thu, May 30, 2019 at 9:42 PM jon <jon at jonbondy.com> wrote:
>
> I have been asked to print a geared part off of a Sears Craftsman table
> saw (Sears is unable to provide a replacement part for a three year old
> saw!).  The part is a plate with holes in it (simple), a curved slot
> (relatively simple) and a curved set of gear teeth (not that simple, for
> me).
>
> I suppose I could start out by pretending that I have a full gear of the
> required diameter (presuming that I am able to infer that) and teeth
> (presuming that I am capable of measuring that) and then mask it with
> the plate.
>
> Any recommendations in terms of gear libraries (I recall there are quite
> a few) and process (how to measure teeth, radius, etc).
>
>
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