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![Rostock TETRA V0](https://openbuilds.com/data/article_images/l/4/4091.jpg?t=1478477284)
Build Author
crystaldragon141
Views
5642
Rostock TETRA V0
![](https://openbuilds.com/data/article_cat_images/s/0/272.jpg?t=0)
This is an experiment to build a Linear Delta Printer using four towers instead of three. Primary reasons: 1. Build area is roughly cubic vs roughly cylindrical 2. Greater speed and precision from additional control provided by fourth tower. 3. Symmetric kinematics from even number of towers.
![Pong CNC](https://openbuilds.com/data/article_images/l/3/3425.jpg?t=1462357169)
Build Author
Gerrald
Views
4846
Pong CNC
![](https://openbuilds.com/data/article_cat_images/s/0/295.jpg?t=0)
This build is to show what's possible as well with openBuilds! I use a single ArduinoMega and 5 separate stepper drivers (A4988). The LEDs are all NeoPixels. Collision 'detection' is all done within the code, so the endstops are only sensors I use in this build. I'm a self-employed video-artist and this is my first installation which just needs power and it runs (where I'm quite proud of). Normally my interactive installations take a long setup time, so this installation is a relief :)
Black Panther QR
![](https://openbuilds.com/data/article_cat_images/s/0/272.jpg?t=0)
The QuadRap 3D printer version based on OpenBuilds wheels. Born in https://plus.google.com/u/0/communities/103539262895202172380
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