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

This is a logicly working model of a human hip replacement.
An example for the idea of using repraps in medical applications.

And abit of fun too....

Enjoy walking!

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.

This is a printable clip for attaching mini-lights to a wall, more revision is necessary, but they do work as is.

This item was designed for the "cutbag" competition - see blog.makerbot.com/2011/03/14/twotimes-design-challenge-cardboard-bags/

The object is commentary designed to draw attention to the ways in which our technology is increasingly constructed with "features" beyond our control. The specific "feature" this object draws attention to is the EURion constellation - secure.wikimedia.org/wikipedia/en/wiki/EURion_constellation - an anti-counterfeiting pattern printed onto many modern currencies that is recognized by various pieces of software and colour copiers etc, causing them to refuse to print or copy the e.g. bank note in question. Now, counterfeiting is clearly something that should be discouraged, but I am a bit troubled by the increasingly prevalent idea that if I ask my technology to do something for me, it must first check with e.g. the government to see if it's OK. This is an area of increasing importance to the 3D printing community as well - imagine a world where all 3D printers were legally required to check in with a central repository before every run to make sure your print doesn't infringe someone's IP or security concern. Sounds ridiculous now, but in ten years, there will be people advocating for that...

So anyway, by exposing the design both to direct viewing, and by functioning (in a limited way) as a privacy-protection device (presumably photos of you carrying this will not print on certain devices / with certain software) this object will hopefully spark discussion around this issue. Meanwhile, it may also function in a limited way as a digital "opt-out" for collection of your personal image in some contexts.

Attributions - inspired by this: martinbackes.com/new-artwork-pixelhead/
and the EURion constellation was taken from the public-domain image found here: secure.wikimedia.org/wikipedia/en/wiki/File:EURion.svg

Update 2011.03.19: Added file body3.pdf - same as original file, but includes the QR code for this page.

Update 2011.04.04: Added an image. The laser cutter has temporarily gone away, so in the interim this is a bonsai version cut out by hand, but I did use the posted design files...

This is the frame and candlelift for a raw hide lantern used by LARPers and Reenactors. Intended material is wood.

The included OpenSCAD script allows for parametrized construction of the necessary parts, just change the constants in the top part to your liking.

This instance is 25cm high and 20cm wide, and intended for the standard european tea light candle.

I will modify this thing after seein how well it works in practice, most probably with some nice handle for the candle lift. You might want to add a handle to the top part so that you can carry or hang the lamp.