30 Aug '14, 2am

The ChalkJET: An Ink Jet Printer For The Streets

The ChalkJET: An Ink Jet Printer For The Streets

Need to do some guerrilla street advertising? What you need is the ChalkJET 9000, an ink jet printer on wheels. Using two Arduino Duemilanoves for the brains, this little cart features eight cans of spray chalk which can be individually actuated. Small solenoids pull down on levers in order to spray the cans. Encoders on the wheels of the cart keep track of the spacing in between each pixel as the cart gets dragged along. A small LCD mounted on the handle allows you to select which text you would like to print, but it doesn’t look like manual entry of new words is possible — You’ll need to load up a library while connected to a computer before hitting the streets! This was the final project for four UC Berkeley mechanical engineering students back in 2009. Can you imagine throwing a larger version of this onto a car? [via HackedGadgets ] Need to Reference the US Constituti...

Full article: http://hackaday.com/2014/08/29/the-chalkjet-an-ink-jet-pr...

Tweets

Taking back the streets: Open Streets takes Toronto

Taking back the streets: Open Streets takes Tor...

treehugger.com 31 Aug '14, 6pm

Rob Ford's head must be exploding. Here it is, Sunday morning at eight o'clock, when people should be in bed nursing their...

Chinese man to have skull rebuilt with help of ...

straitstimes.com 29 Aug '14, 9am

A Chinese man left with a large chunk missing from his skull after an accident will have his head rebuilt with the help of...

3D Printer manufactures introducing innovations that are changing the industry via @designnews

3D Printer manufactures introducing innovations...

designnews.com 30 Aug '14, 9pm

The printers ship fully functional and no assembly is required. Furthermore, each printer includes a one-year warranty wit...

Who Are Our Streets For?: A Q&A with 2014 Lee S...

2014 Lee Schipper Scholar Madeline Brozen will research how to better evaluate street performance, challenging the convent...

THP Semifinalist: Retro Populator, A Pick And Place Retrofit For A 3D Printer

THP Semifinalist: Retro Populator, A Pick And P...

hackaday.com 30 Aug '14, 8pm

A huge theme of The Hackaday Prize entries is making assembly of electronics projects easier. This has come in the form of...

SustainableCities: Who Are Our Streets For?: A ...

2014 Lee Schipper Scholar Madeline Brozen will research how to better evaluate street performance, challenging the convent...