Type in your text and we turn it into a customized metal branding iron.

Does not include the lighter.
The lighter is a BIC World, Classic, Maxi.

Want to make your own? Download the lighter attachment part here: http://www.shapeways.com/model/121517/ Do not flip/mirror the image, ie. please upload one you want as the actual result of the branding. If you have trouble uploading image like invalid file type, please make sure the filename has extension, for example, .jpg

This detailed model of the moon is hollow and therefore very price efficient. It will balance on a small gap on the bottom. You can also hang it on a wire using a bent paperclip. See video and images. Made for full color sandstone.

A smaller version of Triple Gear is available here. A baseplate and axle for using a motor to move the triple gear is available here. Also see 15 cm axle for Triple gear and 30 cm axle for Triple gear.

In this unusual mechanism three gears mesh together in pairs, and yet they can turn!

If you take three ordinary gears and put them together so that each gear meshes with the other two, then none of the gears can turn because neighbouring gears must turn in opposite directions. Triple gear avoids this problem by having the three "gears" arranged like linked rings - the gears then rotate along skew axes, and the opposite direction rule no longer applies (although see also Oskar van Deventer's Magic Gears for another possible solution).

This is joint work with Saul Schleimer. We were inspired by another of Oskar's designs, his Knotted Gear, which consists of two linked rings that gear with each other, and of course we wondered if it would be possible to do three linked rings!

Here is a paper on the mathematics behind the Triple gear, and how we designed it.

A note on materials: I have so far printed it in White Strong & Flexible only. It may arrive with the rings slightly fused together, but gently moving them back and forth will loosen them up, and the mechanism gets smoother with use. I'm not sure what effect the polishing process would have on the gearing mechanism, since it would polish the exposed gear teeth but not those which are meshed as it comes out of the printer. So I have disabled the polished material options. If you really want to try it, let me know. I also haven't tested any of the "frosted detail" materials, but I imagine that they should work fine. It isn't printable in the other "detail" materials because of cleaning problems.

our third (and so far favorite) experiment into digi-fabric design.

Size 8, 18.54 mm inner diameter. This six-part puzzle ring is a design by Bram Cohen. Bram writes: "This six-banded design is a straightforward extension to the traditional four-banded design which somehow never occurred to anybody before me".

Watch the YouTube video
Read at the Shapeways Forum

[Please note: This is the original version of the hood, there is now a 2nd version with cutout, alignment marker and slightly wider opening. Both work fine.] This hood fits to the existing bayonet attachment via a very tight friction fit. On first fitting it may feel you are forcing it, but this is normal and the mount has been tested across 3 different examples. The print maybe a little tighter than usual, if this is the case, cleaning out the bayonet grooves will remedy the situation. This hood will also work on the Zeiss 50/2 Planar, tho won't offer as much shading as it's dedicated hood. This is a compact hood for the Voigtlander 35mm f1.4 Nokton Classic lens, as a replacement for the £48+ one that Voigtlander offers. It's more compact and has been calculated to offer greater shading. Because the Voigtlander 40mm f1.4 Nokton Classic is almost the same lens, but will a narrower FOV, this hood will also work for this lens too. It's rectangular cutout is 10% wider than the lens' field of view for full frame, has been tested on a full frame camera without vignetting. On a crop body such as the M8 or NEX ranges, there should be no problem at all.

A die in the shape of the symbol PI. To make it even better this die is perfectly weighted and all sides are roughly the same landing area. If rolled on a flat surface this die will roll fair so you can actually use it.

This die has been tested and found to be fair.

    one cup a day 
Day 11: Hard to Handle Cup30 days, 30 coffee cups project

View the collection

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3D Print in Ceramics vs. 3D Model

review & details

Mixup Cube is like a Rubik's Cube, but with an unexpected twist. When a mid plane is turned by 45 degrees, other turns are possible. This way of turning mixes up the center and edge pieces. Although the concept has already been patented in 1985 by Sergey Makarov, this version has an internal 2x2x2 "cube" for extra stability.

Watch the YouTube video of version 1.
Watch the YouTube video of version 2.
Watch the YouTube video of version 3 (this).
Read at the Shapeways Forum
Read more at the Twisty Puzzles Forum

Please contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.