It's just like the original SpaceChem pin, but with internal sockets for 5mm Nd (neodymium) based spherical magnets! (eg. Buckyballs)

Since they're able to rotate freely, you can attach the Nd pin to any other magnets and it should behave itself. This includes pinning it to a shirt/uniform without piercing the fabric.

Additionally, the pause needed to insert the magnets is an excellent opportunity to add contrast by changing the filament to another color!

I intend to more fully document the process of inserting the magnets on another thing, but they're being published out-of-order because I wanted to post this remix less than 24 hours from the original. :)

2013-05-21: Fixed incorrect capitalization of "SpaceChem". Whoops!

Thingiverse appeared to be missing a weeping yogi, so I found one belonging to a coworker, scanned it using 123D Catch, and cropped it into a printable result using meshmixer.

Unfortunately, the original carving is absolutely tiny (that's my average-sized thumb next to it), so the resulting scan is a bit low-detail. In retrospect however, I'm quite amazed that details such as the fingers and ears were captured at all!

If anyone else uploads a weeping yogi (scanned or original) that contains more detail, it would make me quite happy! After all, it seems like a good base-model to have around, either for serious applications or for making absolutely bizarre mashups. :)

This washer fits between one of Emmett's Gear Bearings and a power-drill chuck, ensuring that the planetary gears avoid unnecessary collisions.

While not critical, this primarily helps keep the gear's surface looking nice, and secondarily avoids the generation of PLA-dust.

Need some science-fiction themed deck boxes with awesome texturing, friction-fit lids, beveled edges, and support for arbitrary emblems?

Well, fire up OpenSCAD to write a monstrous script that generates everything just short of the kitchen sink, and use Inkscape to hand-trace emblems as needed!

Do you need a pajama-friendly belt clip, but can only find mean-looking designs meant to be used with actual belts?

Then design a smooth 2D curve in Inkscape, and extrude it into 3D using OpenSCAD!

Need a fancy bow-tie for an event like new year's eve, but don't want to use support to print treppi's papillon design?

Well, throw it into OpenSCAD and shave a teensy bit off the back and give it some overhang-friendly notches!

Need a masquerade mask, but just can't quite fit the Low Polygon Mask into your Replicator print volume?

Well, stop fretting and use OpenSCAD to trim some tiny edges off!

2013-01-01: At the last minute I slapped together and printed a stick that worked quite well as a handle (once a little silver duct tape was added on the inside of the mask). It's not perfect, but for being a ten-minute design it worked very well!

2013-01-02: Fixed the gap in the CC license-chain by switching from CC0 to CC-BY-NC-SA.

I wanted to augment some Halloween treats we're giving out this year, so I dug up a cool bat model, cut the magnet-socket off its back and gave it a couple of handy hoops to thread a glowstick-bracelet through.

The source ancestor and OpenSCAD script are packaged together in a zip file (since the script references the bat model). While I hope the script is legible, it was written as a quick sketch, rather than a project re-use in mind.

Pretty simple: I changed the number of "ninja stars" (abstract four-point paths), shifted them around, and moved some of them into a new layer so two-color patterns could be made.

I also removed the "test" layer, which had accidentally showed up as two tiny dots in my first plot. :P

The original was great to have, but I made these tweaks:

- The labels have been replaced with larger text generated using the Hershey Text extension. These labels should be now be super-legible, even on objects as small as ping pong balls. :D

- After looking at Inkscape's y-axis orientation and the eggbot pen-motor orientations, the y-position labels have been vertically swapped.

- The paths are now organized into layers named "Grid Lines", "Direction Markers", and "Labels". :)

Future changes: I intend to create some additional variants for heights of 950, 900, and 800. It might also be handy to have some regular-grid designs without labels to make it easier to pencil-sketch on a reusable ball and then transfer that design to Inkscape.

EDIT: Silly me, I forgot to promote Hershey Text! Download it now!
evilmadscientist.com/article.php/hershey

My first Thingiverse design is a Metroid/Tron mashup for plotting on spheres!

Want to see a 15:1 timelapse of the blue ball being made? Of course you do!
youtube.com/watch?v=UwzBYi5POJA

Mostly copied from the video's description:

The style worked very well for learning some new features in Inkscape! Most notably grid-snapping and tiled cloning (tessellations). :)

Design and prototyping was done in one night, with most of the prototype balls only taking a minute or so to plot because they were done as outlines only. The final 2 balls took about 11 minutes each due to the large fills.

The timelapse was taken at 1 photo per second, and played back at 15 fps. Unfortunately, this 15:1 time scale is basically as low as my phone can go while producing a decent movie. :P

BONUS! If you look closely, you can see a small wake behind the pen where the ink is drying!

BONUS! It's ridiculously tempting to even take the current design and plot it onto one of those motorized balls that randomly roll around! I can't seem to find a link to a simple version, but this pool-toy displays the basic idea:
amazon.com/Swimways-Crazy-Chase-Dive-Ball/dp/B0036FTLXI

BONUS! I'm friendly! Comments are super-welcome! :D

Rather simple: I thought it would be interesting to see what a symmetrical design looked like, so I flipped two of the four hearts vertically.

The file is also now 3200x1000, which if I'm not crazy, seems to have fixed my plots inexplicably coming out a little too high up on the ball.