whoa, that is *really* cool!!!
btw heres the (better) video:
http://www.youtube.com/watch?v=oTm3BrsSpGE&feature=related

Posted at 10:40 pm on Apr 28th, 2008 by andrew

This is from a slightly different view -

http://www.youtube.com/watch?v=ebgiq7zuuiu

Posted at 4:37 am on Apr 29th, 2008 by xSwamp

We have electronic whiteboards in my Computer Science and Engineering building which can share their contents over the internet… but I imagine they cost many thousands of dollars more than this.

Posted at 4:38 am on Apr 29th, 2008 by jonathan

Gahhh, had stuffed up my link,

http://tinyurl.com/2q9j9y

Posted at 4:40 am on Apr 29th, 2008 by xSwamp

uhh, xswamp, i dont think thats the right link… ;)

Posted at 8:06 am on Apr 29th, 2008 by andrew

best hack this month, hands down.

Posted at 2:26 pm on Apr 29th, 2008 by fucter

Now all that needs to be rigged up is a stepper motor actuated eraser.

Posted at 3:06 pm on Apr 29th, 2008 by cole

Does he not need to worry about the marker drying out?

Posted at 12:07 am on Apr 30th, 2008 by Solenoidclock

This exact project was in circuit cellar magazine two months ago…

Posted at 1:24 am on Apr 30th, 2008 by clint

Looks like the perfect application for a pantograph to me… It would solve the problem of needing to actuate over such a large distance.

Posted at 10:30 am on Apr 30th, 2008 by ivan256

@ivan256 – I’m used to seeing a pantograph used for reduction, not enlargement. Although that does seem possible.

Posted at 9:04 am on May 1st, 2008 by chris