Difference Engine

by qwertyzzz18, published

Difference Engine by qwertyzzz18 Apr 6, 2011

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Babbage's Difference engine. Can calculate polynomials.

Animation: http://www.youtube.com/watch?v=8X6iIpjawZU

Figure wheel: http://www.thingiverse.com/thing:7605
Restore arm: http://www.thingiverse.com/thing:7610
Sector wheel: http://www.thingiverse.com/thing:7711
Sector wheel tab: http://www.thingiverse.com/thing:7712
Sector wheel restore arm: http://www.thingiverse.com/thing:7713

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qwertyzzz18, Are you still working on this project. I am interested in this project If so are you sharing your results some place other than Thingiverse ?

I am in the process of porting this to OpenSCAD.

Your youtube video is set to private. Can you change it to public (anyone can see it) or unlisted (you need a link to see it) please?


Sorry for the lack of updates. I lost most of the source files to a crash, but I am almost done reconstructing them from the stl files.

Also, if anyone is curious, this was made in Sketchup and Blender.

Sorry for not updating it for a while, but I am stumped on how to make the carry mechanism. Any ideas would be welcome. I looked at the carry mechanism on the original design, but it would be too weak if it was made out of plastic.

Also, has anyone printed it? I need to know if the gears are large enough to mesh reliably.

If not, i will need to split some of the pieces.

hey, I'd love to help build this thing! The gears printed at the default scale mesh up just fine. A little perplexed on exactly how it all goes together. Could you share some more info on assembly?

Also, do you have access to a printer? If not then I could print you a set of parts and send em your way if you want :-D

Sent message to you with address to send parts to.

An additional piece will be designed to align all gears. Lego Technic axles will also be used.

The way it needs to work is:

The ridges on the figure wheel will 'trip' the carry mechanism, and put it in a 'set' state.

When triggered, it will advance the figure wheel above one place, and return to a 'reset' state.

Any help would be appreciated.

where do u got the plans for it??

THis is sooooo cool. I always wanted a 'complete' analytical engine maybe this is the way - 21st century manufacturing of 18th century design.

Wonderful! How many parts to go?

I need to work on the carry mechanism.

It looks like someone read my mind. This can easily become the coolest thing on earth to be 3d printed.

I can't wait for this to be completed, might need to order more ABS though...

UNBELIEVABLY COOL. Seriously, this is phenomenal work...

Do you realize that posting the parts separately makes it a huge pain. Clicking on the parts list does not take you to the other "things" that you have made as parts. WilliamAAdams tried that with his polybot and it was such a pain that Renosis re-posted it all in one here http://www.thingiverse.com/thing:7554http://www.thingiverse.com/thi...

Although if Thingiverse worked that way it would be sweet.

Delta Robot - Yazzo PolyBot Derivative
by Renosis

Sorry. Can I use the part list and upload everything on the main project?

Yes you can do it that way, it does make thingiverse a little cluttered but at least everyone knows when you have a new piece ready for printing.

Wow, I hope you can make this work!