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Comment: wow jamcat, many thanks for the useful advice and insights!
Comment: i didn't drill thru the acrylic. it is just floated inside the frame.
Comment: Hmmmm. it depends on the specifications of the LED so maybe you are using something d…
Comment: welllll...the screen is 30x36 inches and there are 88 leds distributed around the perim…
Comment: more than 0:http://science.box.sk/newsread.php?newsid=6321
Comment: thanks! it's e-e scattering.it was one of those visual coincidences just waiting for s…
Comment: nice tenticules!
Comment: yes. the thin one is on the backside just holding the diffuser (paper) in place
Comment: the projector is bouncing off the mirror so the screen is actually illuminated from behind
Comment: Hmmm. I didn't notice that effect myself but it could be the case. A problem I did en…
Comment: I think you probably don't need the second plate if you have some other method for atta…
Comment: There is probably some excess latency in the webcam driver and the "applications" which…
Comment: that might work, but i'm not sure durock could stand up to the heat. it may even have …
Comment: If you put the diffuser behind a sheet of acrylic, then i don't think there would be an…
Comment: i'm not sure what the best thickness is, i haven't done any experiments with different …
Comment: as mentioned in step 2, the acrylic is 0.25 inches thick
Comment: at the local hardware store.
Comment: yeah. when i last looked there was some sort of interface to touchlib to drive the mou…
Comment: sure...as long as you can get the projector far enough away to focus on the screen
Comment: Unfortunately, I don't have a web source :( We basically have an agent in santa fe …
Comment: yep! it may not look so pretty, but it still tastes just as delicious
Comment: here is a nice discussion of how much power chargers use when not connected to a device…
Comment: i was intrigued by these couches as well... a very simple technique for creating a comp…
Comment: i have found that it only responds really well to fingers. perhaps a silicone rubber c…
Comment: each string of 8 leds is going to have 12v across it (you're using a 12v power supply r…
Comment: unfortunately, you really do need the resistor in order to limit the amount of current …
Comment: i'm not sure if there is any upper limit on how many you can put. presumably brighter …
Comment: do you mean that the acrylic isn't transparent? i'm not sure but it might scatter mor…
Comment: if you can fit it all nicely together, i don't see why not. in my setup, the overhangi…
Comment: both programs came out of the touchlib source tree "flashSrc" subdirectory which i grab…
Comment: such a test setup definitely worked for me. with a single led on at maximum current (1…
Comment: answering my own question...this site claims that the wiimote bluetooth interface repor…
Comment: that's actually a pretty interesting idea. i think the Wii uses a cmos soc system so t…
Comment: thanks!
Comment: hmmm. that's tough. maybe there is some good way to at least polish the sides of the …
Comment: thanks. i'm always tempted to use my finger but it has always resulted in a big mes…
Comment: It's a Peace Orchestra track called "Who am I"http://www.discogs.com/release/7802
Comment: i'm an academic...i wouldn't dare not cite prior work. if you read the instructable …
Comment: hmmm. maybe you can give some more details. how didn't it work?
Comment: did you try just pointing the webcam directly at the leds without the acrylic to see th…
Comment: i downloaded binaries from here:touchlib
Comment: looks like touchlib already does work on linux. see nuigroup wiki.
Comment: just found another nice how-to guide here: http://www.multitouch.nl/?p=53using a very …
Comment: i have heard about "flame polishing" but was a little to scared to try it on a big expe…
Comment: i only placed the spacer blocks in the corner, at the very end of each strip. it might…
Comment: sorry for not putting in more details. (1,2) the size of the screen (as mentioned in…
Comment: i think it would help. you are limited a bit by the size of your fingers. my camera i…
Comment: i was blown away by the fact that touchlib basically worked out of the box. very well …
Comment: in my setup, the projector is "rear mounted" in the sense that it is behind the screen.…
Comment: i just added one to the front page.
Comment: the demos i played with were based on touchlib. i don't think they use vvvv at all.
Comment: the question is whether that opaque stuff is also opaque to infrared light. an lcd req…
Comment: as always it depends on how much you can scrounge.new projectors are probably start at …
Comment: the leds i used are like these: ledtech LT188X-81 although their "datasheet" seems to c…
Comment: good points. i will try to clarify in the instructable. the camera is mounted along…
Comment: fair enough. i haven't looked in to the details but it is probably easy to do. the co…
Comment: right now they're just lying around; holding down the fort while i'm out of the house. …
Comment: a wallet, like your mind,can expand to hold many things.might i recommend a return to t…
Comment: actually, i'm just using the glove as the mold. in short: get a glove, fill it with …
Comment: too hard on the buttocks that is
Comment: sorry to disappoint :-(a real cement wallet seemed like it would be to hard
Comment: we have definitely pondered at length the spherical and toroidal geometries. clearly mi…
Comment: the tubing seemed to hold up quite well; as did the construction adhesive which remaine…
Comment: where by jello you mean a soup of pecans, corn syrup, sugar and uncooked eggs.
Comment: sweet! hey, is that two twobyfours?
Comment: awesome! i think the best ice cream made this year was based on an avocado so i can im…
Comment: aw shucks, you're giving away the punch line. magnets and the oven do not mix. we lea…
Comment: working on it. you folks are just too quick
Comment: p(ie)20?
Comment: additional thoughts:remember to remove everything from inside the turkey (plastic suppo…
Comment: very nice photo-doc and a beautiful bird!have you ever tried constructing the thompson …
Comment: we've been thinking for some time about the potential merits of cooking a turkey with l…
Comment: i've not been entirely happy with egg based ice-cream recipes in general, although the …
Comment: the temperature in the oven is only 350-400 degrees F. i think the thick rubber hose …
Comment: the pump design would probably work pretty well if the slush was liquid enough to feed …
Comment: a month worth of friday nights. maybe 15 hours shaping the sheet metal and folding up …
Comment: oh it's COOL alright :) i expect that it nearly all boils off except for some tiny bub…
Comment: ours fell off a truck in or around ucsf, but you can purchase itfrom a welding or medic…
Comment: thanks. now included is a picture of the pan's final resting place. i'm sure it is st…