Even though there are lots of great gears on thingiverse, I couldn't resist the urge to model some too :)

The combinations of parameters are too many to upload an STL for each, so I just picked a few.

I also made a version for helical gears: thingiverse.com/thing:1339

This is an openscad program for making finger wheels

The reprap is not the only 3d printer that can replicate itself, now the Makerbot can to.

This Makerbot is made out of aproximatly 150 individual pieces that is printed on , "yes you guessed it) a Makerbot.

My Makerbot worked hard everyday for about a month straight to finish this project, and i am immensly happy about the end resoult.
There are more pictures on the bottom of this page;)

(The pictures doesnt do it justice one bit, but it really is a thing of beauty)

Now i have added a zip file that includes all stl- and max-files.

A python script for making involute gear STL models.

After the success of my first printable extruder design (the Printruder, see thingiverse.com/thing:958 ), I wondered, if there would be an even simpler and better design for a Printruder.

This is what I came up with.

Please note, that there are two flavors of the main part ("Motor Block"):

Motorblock_v7_TimerBeltPulley.stl
This design is for use with the standard timer belt pulley, which comes with the MakerBot Extruder MK3/MK4.
Motorblock_v7_WormGearPulley.stl
This design is for use with a 10mm worm-gear style pulley

You only need one of both. Be sure to print the correct one!

The PCB holder parts are optional.

There's a post on my blog on this with more detailed information and step-by-step build instructions:
pleasantsoftware.com/developer/3d/2010/03/08/printruder-ii/

In order to mount the Printruder II in a MakerBot, you might want to print also a pair of Printable Extruder Holders: thingiverse.com/thing:1912