Inspired by thingiverse.com/thing:4244 this is a box that opens when you twist the outer rings in opposite directions. See this video by Labmat: flickr.com/photos/matthewlaberge/5101233486/

Edit I: Design has been modified to increase the clearance between moving parts. I've also centered and oriented the parts in better positions for printing.

Edit II: Design files posted. DXF, STEP and the original CATpart for those with access to Catia. Thanks to everyone for your photos, videos and design feedback!

Edit III: Be sure to check out Jon Hodgins' version: thingiverse.com/thing:5589

A 3D plastic print that attaches a boarduino on to the back of a 16x2 LCD. Allows for wires to pass under the holder.

full details, video, etc @
plebiandesign.com/store.html

It's a radiation shield for a toaster that leaves a shroud of turin-style jesus image on every slice of toast. In short, it's a miracle that is well within your reach.

Perhaps one of the funnest projects we have attempted around the .:oomlout:. offices. A five degrees of freedom robotic arm. While we have spent many hours twisting knobs to move pop cans from one point on our desk to another sadly it has not progressed much further.
The main reason for this is the sum total of math knowledge around the oomlout.com offices is about 4 (don't ask us to show our work on how we calculated this) so inverse kinematics is well beyond our reach.

We are releasing it in an imperfect form in the hope that the clever Thingiverse denizens will be able to make it better.

Why this isn't quite ready for sale:
-We lack any inverse kinematics program which makes moving the arm intelligently nearly impossible.
-Without software limits on the servos it is capable of stripping the low cost hobby servo motors (this is alright for testing as they are only five dollars) (we have stripped two in the life of our arm and both happened when we were asking it to do silly things) (this can be fixed by upgrading the servos)
-We haven't completed the 3d model or assembly instructions just yet, but by studying the photos it is possible to assemble. (think more jigsaw puzzle than lego set)
-The gripper, lets just say the gripper needs a little work.

That said it is an amazingly fun toy to play around with, and a good starting point if anyone has ever had a desire to make the perfect robotic arm (it is open source so you'd be free to make and sell your own)

(shameless plug)

For more details about becoming a Robotic Arm Developer visit our blog
(http://www.oomlout.com/blog)

A small desk clamp.

Works but it requires a little more super glue than I would have liked.

It was designed to be a PCB holder (the one Lady Ada uses in her instructions was the inspiration).

ladyada.net/images/usbtinyisp/tools.jpg

The base is too small making it unstable.

However I just finished printing it and it works!

To make it you will also need.

3/8 (5mm will do as well) threaded rod and some square nuts.
Square brass tubing ( 3.9 mm ) and the size that fits just inside that.

Needs some more work:

Bigger base , maybe multipart
Better way to hold the clamps

The tar file contains the blend , photos and all the stl files.