My Second design of a small geometric sculpture that explores the battle between cake and pie

The human powered internet cafe looks at the issues of renewable power generation and aims to educate users to the energy requirements of surfing the internet.

Users are asked to peddle the exercise bikes in order to turn a dynamo which would in turn power the computers. If users fail to peddle hard enough the computer monitors will begin to flicker encouraging them to peddle harder.

The thing would ideally be placed in public areas where all forms of society could view it and try it out for them selves, thus educating as many people as possible.

This is my second DIY 3 axis cnc machine. It is designed in solidworks 2008 (~50-60 hours) and built mostly out of MDF. Provided are all the source files and drawings in both solidworks and edrawing formats. This machine is possible to make with just some hand & power tools, but I used my first cnc machine to make most of the smaller parts.

The machine uses chinese linear rails and ballscrews from ebay seller linearmotionbearings2008. With the 1.8Nm stepper motors I use with geckodrive g540 it achieves 10m/min rapids and 5m/min feedrates. The working area is about 110cm x 60cm x 10cm.

Expected cost to build a machine like this from scratch is 1000-1300 euros. It also took me over 80 hours to build.

For my wedding in October 2011 I asked my fiance if I could build something, she only asked that it not be tacky. This is what I came up with. It's a modular folding photo booth. I designed the model in Sketchup, programmed it in Autoit, and gave it a nice Glados voice. I needed an input device and I decided to make a serial comm button. I took a 555 timer and made it generate a 4.8kHz square wave. At 9600 baud this translates to UUUUUUUU plus one garbage character when the button is released. for now it only uses a Webcam to take photos but hopefully I will be find a deal on a canon power shot sometime in the next months to upgrade it. Since the printouts are resized, the small webcam resolution isn't noticable, however it won't be suitable if i wanted to incorporate the singles frames into a album. I'm working on some upgrades using the twitter api so I can have the booth update me whenever it is taking photos. This way I can tell it's status and share photos easier.


Here is a video of it's assembly and the software.

youtube.com/watch?v=jNGg821bC7c

This is the result of my efforts to produce a reliable hot end for RepRap, using minimal components and tools. In it's most recent incarnations, you no longer need to tap threads for the MIG welder tip, make the nozzle clamp, or cut a slot for the power resistor.

The original instructions are on the RepRap Wiki (http://reprap.org/wiki/Wildseyed_Simple_Hot_End), but I'm not wiki savvy, so I think I'll be posting the progress here first from now on, and updating the Wiki with well tested results.

This is the result of my efforts to produce a reliable hot end for RepRap, using minimal components and tools. In it's most recent incarnations, you no longer need to tap threads for the MIG welder tip, make the nozzle clamp, or cut a slot for the power resistor.

The original instructions are on the RepRap Wiki (http://reprap.org/wiki/Wildseyed_Simple_Hot_End), but I'm not wiki savvy, so I think I'll be posting the progress here first from now on, and updating the Wiki with well tested results.

This is a fork
You can Eat with it
You can stab things with it
You can launch it with a device made to launch such objects


This thing has changed the world, can you?