by
joabaldwin
The design is based on the classic Celtic-style knot symbol for the World Tree from Norse mythology, Yggdrasil.
Inside the leaves you can see a small sphere of blue. If you look reaaally carefully, you could notice that the continents in the blue ball are in the shape of Pangea and not our current distribution.
Inside the leaves you can see a small sphere of blue. If you look reaaally carefully, you could notice that the continents in the blue ball are in the shape of Pangea and not our current distribution.
by
imperator
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.
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.
by
slackard
This replica of a Mamiya NC1000 P-Mount adapter for M42 lenses is fully functional and will save you the trouble of searching ebay for years, trying to find the rare original Mamiya P-mount. I used an original p-mount that I own to measure and verify accuracy when designing this replica. Rest assured this item works great in any NC1000 or NC1000s camera.. (tested using a Mamiya M42 50mm f/2 lens)
This design is fully functional but upon receiving the part you must use a hobby knife to release the moving part from the non-moving bits in order for the aperture to function properly. Doing so requires a simple 4mm slice to release 2 parts that get loosely fused in the laser sintering (3d printing) process.
Here is a HOW-TO video demonstrating the hobby knife procedure: http://www.polymetric.net/pmount.mp4
This design is fully functional but upon receiving the part you must use a hobby knife to release the moving part from the non-moving bits in order for the aperture to function properly. Doing so requires a simple 4mm slice to release 2 parts that get loosely fused in the laser sintering (3d printing) process.
Here is a HOW-TO video demonstrating the hobby knife procedure: http://www.polymetric.net/pmount.mp4
