1. Heh I wonder if this can be adapted to make tatoos on your arm. Done in five minutes!

Posted at 12:06AM on Apr 12th 2007 by curious george

2. sweet updated before midnight. too bad it cant make music

Posted at 12:13AM on Apr 12th 2007 by bird603568

3. Wow, this hack is just insane.
The hugely complex DIY involved.
Also, I think you meant ball point pen, not pin,but no biggy.

Posted at 12:48AM on Apr 12th 2007 by mastershake916

4. I remember coming across this a while back, I've always wanted to try it, but haven't ever gotten to, maybe I can try using a floppy drive instead of the solenoid seeing as they are super abundant

Posted at 1:05AM on Apr 12th 2007 by Ziggit

5. Is it really a dot MATRIX printer if there's only one pin? :-)

Posted at 4:02AM on Apr 12th 2007 by Tom

6. Gotta love Fischertechnik for mechanical prototyping!

I wonder if he got his ideas from the Fischertechnik Plotter kit from 1985 (they also offered a simpler version way back in '77)...

http://www.ulrich-mueller.de/plot85.htm

Posted at 8:56AM on Apr 12th 2007 by agent420

7. The whole site is well worth spending some time at. Dude seriously must have way too much time to create some of the crazy stuff.

Posted at 9:37AM on Apr 12th 2007 by thetable

8. Hey, check out his brother's site too-- he has a pretty good writeup on his build of a cnc pcb router.

http://cq.cx/pcb-router.pl

and this: mechanical pong -
http://www.cyberniklas.de/pongmechanik/indexen.html

Posted at 11:46AM on Apr 12th 2007 by stillboy

9. @Tom: you can have 1-element matrices, so yeah.

Posted at 12:07PM on Apr 12th 2007 by Groxx

10. what time zone are you in will? because it's 12:47 am where i'm at and i don't see the next days hack ;)

Posted at 1:58AM on Apr 13th 2007 by austin y,

11. i was going to build something like that once but with a led pencil and then make a text fort that was copied from my hand writing then i could write papers for school and type them with spell check and other stuff like that you should consider trying something like that i would like to see how it turns out.

Posted at 3:52PM on May 2nd 2007 by drew