The tale of the sneak eating it's own tail, where did it end?

Medium pendant available in multiple materials, displayed in Antique Bronze Glossy.

(Necklace not included.)

Inner diameter ~ 1,5cm
Outer diameter ~ 3,5cm
Depth ~ 1,2 cm

For robustness this version is not completely free floating like the sculpture
A smaller pendant is also available here.

The full-color version of the double gyroid bones!
Printed as two separate but intertwining parts.
Please see video above.

This principle is also available as a candle stand.

Please contact me if you require custom texture mapping.

The BBC feature The Code, which aired in the summer and fall of 2011, culminated in a treasure hunt. This is the treasure. The original was made in bronze-finish steel and silver; this recoloured model shows the structure. It is a rendering of the five Platonic solids, nested.
An uncoloured version is here.

Update: Dremelfuge is now provisionally available in the "Strong and Flexible" material, after some basic testing. No guarantee of safety is given, as always. The "Strong & Flexible" material Dremelfuge creates more vibration in use, which may indicate less stability than the "Grey Robust" (ABS) material. Caveat Emptor: As always, Dremelfuge is sold as an ornament, and any use as a tool is a risk entirely taken by the purchaser/user. I accept no responsibility for the safety of Dremelfuge.

DremelFuge is a centrifuge rotor for use with a rotary tool such as the popular "Dremel". As an Open-Source Hardware, DIYbio-inspired design it is intended to enable and inspire scientists world-wide.

At a rotary speed of 33,000rpm (the top speed for a standard Dremel 300), Dremelfuge can deliver up to 52,000g/rcf (1g = the force of Earth's gravity) on a sample in a standard 1.5ml microcentrifuge tube, measured halfway down the tube. This far exceeds the speeds typically used in lab protocols.

Dremelfuge can be used to collect bacteria, proteins, DNA or anything else suspended in a sample. Dremelfuge can be used to extract plasmids from cultures, to purify and cleanse DNA after enzymatic reactions, to remove precipitated impurities or for any other task calling for a powerful centrifuge.

It requires only the 5mm cutting tool holder that comes with the Dremel 300.

For safety reasons, Dremelfuge is sold as an ornament or curio; although demonstrated to be effective and reliable for routine lab tasks, use of Dremelfuge for any task other than as a decorative item is performed entirely at the risk of the buyer. It is suggested that all appropriate safety precautions be taken in such cases, including but not limited to eye protection.

The source files for Dremelfuge are hosted on Thingiverse here:
http://www.thingiverse.com/thing:1483

a small ball and socket character to play with and customize. Can be used with most famous bricks. Please be gentle when assembling the parts.  Any comments are welcome :)

Minah is a young female warrior bearing a huge battle scythe.

This miniature Fits very well with other 54mm models.

You can paint it with acrylic paints.

You should spray the model with primer before paiting it.

Own the Tesla Valve, as per the original design of Nikola Tesla, patented in 1920. See the video below to observe the valvular conduit in action.

Nikola Tesla invented this valvular conduit as a valve for his engines. Materials at the time were pretty bad, and valves were unreliable. Tesla figured that by removing any moving parts from a valving mechanism, he could create a simpler and more robust valve. The hook regions in the Tesla Valve reroute the fluid back in on itself creating a bit of resistance. All the hooks added together do a good job of arresting the fluid, especially when the gas or liquid is pulsed through the valvular conduit.

When you hold the valve in your hands after opening your shapeways package you are possessed of a strange kinship with the historical figure of Nikola Tesla. Pressing your lips to the valve, and blowing through it, you see that it actually works. In the resistive direction your breath is nullified to a mere whisper by the Tesla Valve. And in the non-resistive direction, air flows through unimpeded. It is startling the effect, and to think something so interesting as this valvular conduit was made so long ago.

I made this valve to commemorate Tesla's birthday on the 10th of July, 1856. Owning this valve is a way of recognizing a forgotten genius of unparralled creativity.

This Universal Equinoctial Ring Dial 2 is a portable and self-orientating sundial. You can see how a similar dial works: http://www.sunwatchmaker.com/instructions.php .

This is an improved version of a previous model:
http://www.shapeways.com/model/132928/universal_ring_dial.html

You'll receive five parts unconnected and undyed. Follow these instructions:
1. Clean the parts with cold water and soft brushing to remove support material remaining from the 3d printing.
2. Dip the parts in cold tea for a couple of hours. Holes will get more dyed because of the support material trapped in them. The slider part doesn't have marks, but with the dying will get as yellowish as the other parts.
3. Paint with black ink the marks. Let dry the ink and then remove it with a wet sheet. This way, ink only remains in the marks. In the photo the slider and some zones of the rings weren't inked so they maintained the yellow tone because tea dyes all no flat surfaces. The hour ring has marks on both sides, but only one needs to be dyed.
4. Enter the slider with a little pressure through the slit of the central (month) bar. It's only possible over June and July marks. Then move the slider to the desired month and day mark. Each mark represents two days.
5. Deform lightly the meridian ring (the bigger one) in order to insert the hour ring. Be sure that both rings have their dyed faces on the same side when in folded position.
6. Deform again the latitude ring to put the central bar in position. Check the photo for the right orientation.
7. Finally, insert the eyelet through the "jasolo fecit" part of the meridian ring and displace it to the latitude value of your location. To improve the sliding of the eyelet, you can clean the path with a stick before the insertion (again the support material).

You can purchase the individual parts in case you need any replacement:
- Meridian ring: http://www.shapeways.com/model/185486/universal_ring_dial_2__meridian_ring_part_.html
- Hour ring: http://www.shapeways.com/model/185480/universal_ring_dial_2__hour_ring_part_.html
- Central Bar: http://www.shapeways.com/model/185737/universal_ring_dial_2__central_bar_part_.html
- Slider: http://www.shapeways.com/model/165846/universal_ring_dial_2__slider_part_.html
- Eyelet: http://www.shapeways.com/model/185479/universal_ring_dial_2__eyelet_part_.html

I've seen enough to know where this is going...oh, just kidding.  It's a rhombic dodecahedron.  With an exotic symmetry group.  That's all.  Really.

From above, a classic Egyptian scarab; from below, a real scarab.

The scarab is in a typical defensive posture, legs folded. As a result, it presents a strikingly different aspect when turned over.

This model is scaled to fit well in the hand, and because of the folded posture, is robust enough to travel well in a pocket. Mine goes with me everywhere. Warning: the claws are as sharp as they look.

Sorry, this size is no longer available
Please go here for the large version


A delicate free form model dubbed "Holey".

Makes for some nice Christmas decorations :-)

Minimum thickness is around 0.25 mm on the inside struts.
Prints perfectly in Strong & Flexible, might get bend a bit during transport, but you can bend it back gently if you hold it in warm/hot water.
The tips are sharp and fragile, so please handle with care.

Dodecahedron like structure with five balls moving freely within its Voroni hull. The sound and feel of the balls inside makes playing with it a lot of fun. The structure is very robust and still flexible enough to bounce off the floor.

This radiolaria-like object started out as a simple cube which has undergone several iterations of fractal subdivisions, each with a small amount of displacement applied. Next the edges between each point have been traced volumetrically and then smoothed in order to create this final form - the lattice representation of the original mesh.

More images in this flickr set:
http://www.flickr.com/photos/toxi/sets/72157624686695647/

This model is also available bigger (150mm diameter):
http://www.shapeways.com/model/145391/lattice_20100813_173314_150mm.html

Warning: this is an old but functional version. Check the newer version at:
http://www.shapeways.com/model/146656/universal_ring_dial_2.html

This Universal Equinoctial Ring Dial is a portable and self-orientating sundial. You can see how a similar dial works: http://www.sunwatchmaker.com/instructions.php .

You''ll get in position the meridian ring, the equatorial ring and the central bar. The eyelet must be inserted through the "jasolo fecit" part of the meridian ring. The slider is entered through the slit of the central bar and then it is turned with a little force.

For finishing, dip the model a couple of hours in cold tea (hot or warm tea will deform the model). Later, paint with black ink the marks and once dried, remove the ink with a wet tissue (ink will remain on the marks).

These little bits are the main links in an N64 joystick. They are also the parts that wear out and cause your joystick to go floppy. Why try to find a good controller at some re-sale shop when you can repair it yourself for half the price.

This is a working demonstration of a mechanical iris diaphragm.

WARNING :- Please note the tolerances are a bit tight and depending on print orientation it may require a bit of cleaning.

Will post photos and videos later.

Early Video :- http://www.youtube.com/watch?v=fLSfJjS7QUE

Better but short video :-
http://www.youtube.com/watch?v=GXf9ck0LAYo

Update: Jury 1st Prize winner at the 2011 International Puzzle Design competition

Two open-ended Superstrings with the correct spin can be merged into a super-symmetrical cube.

The idea for this puzzle emerged when I was designing shapes based on two interlocked tetrahedra.  Inspired by ideas from 'string theory' and 'super-symmetry', I began to search for shapes that were both symmetrical and as similar as possible.

Taking the two pieces apart is not too difficult; reassembling them back into a cube can be more challenging. Hold one of the pieces still; move the other piece through the correct sequence of lateral and rotational moves.

Two colour dyed version in a perspex display case available from Etsy.

Reviews of Superstrings by puzzle enthusiasts from around the world.

"Another great little pocket puzzle from Richard Gain" - Allard Walker - Puzzling Times

"I can't really think of any downsides with this one, it was an elegantly designed puzzle that was fun to solve. Well done, Richard!" - Brian Pletcher - Mechanical Puzzles

"An attractive tactile puzzle with a decent challenge but not too awful - a really good addition to my display." - Kevin Sadler - Puzzlemad

"This is a really tough puzzle, and I can see why it won favor with the judges at IPP. Much easier to take apart than it is to put together, Richard can be rightly proud of this one." - Neil Hutchison - Puzzling Parts

BIG GUN WARSHIP COMBAT PUMP. Hose inside diameter 6mm. 4 Litres per minute using a 6 volts SLA battery. Max motor size to suit pump. Motor shaft 2.3mm diameter x 13mm length max. Motor bearing 10mm diameter x 3mm high max. Mounting hole centres 16mm. Requires 7 - M2.6 x 6 long screws.

Medal is a mechanical puzzle maze. The object is to turn the two maze plates and to pull the metal apart in four pieces.

A mechanical device for braiding 3 threads

A advanced alien starship.

Working Suspension Ø12x43mm

For Frosted Ultra Detail

Full Color Mt. St. Helens model, size: 10 x 8 x 1.6cm