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Cmpiled from questions posed via youtube

Track name for video? "Christopher and Raphael just popper Shinichi Osawa distortion disco edit"

How long did this take? Hard to say, maybe 3 weeks working evenings.

You're a student and this is a university project? I'm not a student, this is just a hobby project.

Just a remake of the 1092a? No, I'd never seen the 1092a until now. However some of the parts came from a 8094 kit amongst others many years ago. It is made to my own design, but I acknolwedge influences and the great work of the official lego designers !

Does this use mindstorms? Nope, wiring demo board + homemade analog electronics and sensors.

DPI? Dots per inch? Approx 75 DPI

PPM? Pages per minute? Not even 1! I sped things up a little in the video editing to keep it interesting to watch :)

Helvetica? Yes of course, my respect to those who noticed :)

Full color version/more colours? Originally I was going to do 3 colour version, but I had to simplify as only have 4 lego motors.

Wrote your own driver? Yes, uses standard Mac OS print mechanism.

Are you using some sort of MCU demo board(the black pcb)? Yes. [1] http://wiring.org.co/hardware/

re: Mac vs PC abuse? Video not meant as a Mac advert and I'm sorry if the Apple logo offends anyone. I just find them easier to use.

Felt tip damage drying up? Yes this is a problem, but one felt tip usually lasts for quite a few pages.

Felt tip auto-capping? Nope, sorry.

Sensor info: Horizontal positioning using homemade shaft encoder (black/white rotating lego squares you see in the vid) with a SY-CR102 photo reflector from Maplins, (only £0.89 or $1.30). This is into a sampled analog input as I couldn't get full enough saturation to trigger the ext interrupt pins. There are also push buttons built into lego bricks for left and right end stop detection.