2017-03-11

Gearing up!

I really must stop looking at wikipedia - I read up on involute gears.

This time I did look on thingiverse first and there are loads of people that have published tools to make gears, but still, I really do feel the best way to learn is to do it yourself. It is not about re-inventing wheels (or gears) which I do a lot anyway, it is more about the process of understanding it by doing it. Published on thingiverse...


I ended up making a simple library to make the shape for involute gears. It is pretty simple, the shape of the gear is like the shape that would be made if you had a bit if string attached to the circle and unwound it. There it a great animation on that wikipedia site.

I had to take it further, of course. A general purpose gear module with loads of options...

A simple gear...
A chamfered edge - makes it easier to print...
Helical....
Double helix - herringbone/chevron (keeps gears aligned)...
With a hole...
With a recess for a hex bolt head (and a hole)...
With spokes...
Hollowed out with a base...

With a spindle in the middle...


Or pretty much any combination of the above.

But I did not stop there - I made a nice gear example module. Allowing some interlocking gear examples...
Why stop at 2? (I went up to 4 as it happens)...

And they work!


So more toys for my grandson to play with...

No comments:

Post a Comment

Comments are moderated purely to filter out obvious spam, but it means they may not show immediately.

A sign of the times

There is an old road sign on Belmont Road, Abergavenny. Old, and rusty, and not even that easy to read. It was worse, it was covered in ivy,...