Plutot Photo. The Original Egg-Bot Kit. The Eggbot is an open-source art robot that can draw on spherical or egg-shaped objects from the size of a ping pong ball to that of a small grapefruit-- roughly 1.25 to 4.25 inches in diameter (3 - 10 cm).
The kit is based on the original design by Bruce Shapiro, dating back to 1990. Our version, the "Egg-Bot 2.0," is a modern and friendly update, designed with the assistance of Bruce and his team. The Eggbot is super adjustable, and is designed to draw on all kinds of things that are normally "impossible" to print on. Not just eggs but ping pong balls, light bulbs, mini pumpkins, and even things like wine glasses-- with a bit of work. In the photos, you can see just a few of the things that you can make with an eggbot: Incredible personalized golf balls, christmas ornaments, light bulbs, and (yes) eggs. The Eggbot chassis is made of tough fiberglass, with integrated heat sinks for the included motors. The EBB allows your computer to directly control the stepper and servo motors. The Art of Motion Control : Eggbot. One of my students created this pattern to have eggbot draw a face My fascination with motion control began with this simple device-- a two axis egg plotter (see right).
I had just learned how to control two stepper motors, and needed some way of demonstrating just how interesting this capability is. The success of this experimental "eggbot" not only spurred me on to build bigger two-axis machines, but evolved into an educational tool-- I now teach kids to build their own eggbots, using a course I am continually expanding: "From Bits to Bytes... to Bots" I have also built several higher-resolution, faster machines (I call them "ovagraphs"), which can be seen in the egg plotter page in studio machines. A few pictures from my eggbot course:
The Original Egg-Bot - Home. Wiki. Edit is restricted to the sysop group (set from the "protect" tab)move is restricted to the sysop group (set from the "protect" tab) RepRap is humanity's first general-purpose self-replicating manufacturing machine.
RepRap takes the form of a free desktop 3D printer capable of printing plastic objects. Since many parts of RepRap are made from plastic and RepRap prints those parts, RepRap self-replicates by making a kit of itself - a kit that anyone can assemble given time and materials. It also means that - if you've got a RepRap - you can print lots of useful stuff, and you can print another RepRap for a friend... RepRap is about making self-replicating machines, and making them freely available for the benefit of everyone. Reprap.org is a community project, which means you are welcome to edit most pages on this site, or better yet, create new pages of your own. RepRap was the first of the low-cost 3D printers, and the RepRap Project started the open-source 3D printer revolution.
Strobo et Flash. TUTO ARDUINO. Arduino:tutorial [DokuWiki] 133679-my-diy-cree-led-fixture-w. Hey folks - just thought I'd post a separate thread on my lighting given the recent interest in DIY LEDs.
This is on my non-planted discus tank, but it's more than capable of growing some plants The light bar itself I made out of 1” metal conduit, which I bent into shape using a manual pipe bender. The light fixture is a big and heavy piece of aluminum heatsink, measuring 7x36”. I also attached a splash shield made from ¼” acrylic. The shield really isn’t needed, but it finishes off the fixture nicely, makes it look more legit. The LEDs are Cree XP-Gs. The brains behind the operation is what really makes this light special! The LEDs are driven by four ON Semiconductor CAT4101 constant-current drivers. For dimming and on/off control, the CAT4101 relies on an external pulse width modulation signal (PWM).
This ‘magic black box’ that Aaron built me is really a work of art. And last but not least, the power supply. EDIT: Here's the full journal Driver PCB and Arduino connected. ARDUINO.