Green Beam Laser: Graffiti Activism that Respect Proprety Rights
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Laser Graffiti Activism: Build a portable laser graphics projector by Bill Domenico originally published in the September 2011 Freedom's Phoenix online magazine (http://www.freedomsphoenix.com/Magazine/Magazine-List.htm?MagNo=00017).For related videos and posts, and to get your own Green Beam Laser, visit: http://copblock.org/greenbeamlaser
Transcript of Green Beam Laser: Graffiti Activism that Respect Proprety Rights
Banners are nice for spreading the message. We made 350 Ron Paulbanners for the primary in New Hampshire. But what do you do whenthere is nowhere you can place a banner? When you need to reachout and touch someone. Why not try a laser graphics projector?
LASER Graffiti ACTIVISIMOur Laser projector receives a
Power Upgrade
WHAT DETAILS WILL BE REVEALED?The purpose of this article is to give an overview of our laser projector power upgrade and offer thereader some actual video of real world results showing the projector in action.Last year the laser appeared as shown in the picture above. All components fit nicely into the housing.The significantly larger volume of the new laser made it impossible to fit everyting into the existing case.Rather than start from scratch with a new case, I got a little extreme and simply added an aluminum baseplate extending out the front for the laser head. The large power supply is now mounted externally to thetop cover. A couple of new holes were needed to route the additional wires and BAM, the laser projectorhas now become a seriously capable tool for spreading the message.
Click here to see Laser at checkpoint in Manchester, NH
Click here to see Laser at checkpoint in Concord, NHClick here to see Laser for RON PAUL at arena in Portland, MEClick here to see Laser for RonPaul on bank building in Manchester, NH
Click here to see Laser for Ron Paul on billboard in Manchester, NH
WHAT’s IN THE BOX?The photo at right shows the cover removed andthe main components labeled. A quick operatingdescription is in order. The 532nm green laserprojects a beam onto the lower x-axis galvo mirror.This mirror is at a 45 degree angle to the beamand reflects the beam to the upper y-axis galvomirror. The upper mirror is also at 45 degreeswhich “turns” the beam and projects it out the frontof the enclosure. The mirrors are low mass, highlyreflective and capable of being positioned by thegalvos at up to 30,000 points per second. (30KPPS) The galvos are controlled by the X and Y axisdrivers. They receive their signals from the DAC(digital to analog converter) and provide a precise an repeatable voltage to the galvos. During scanningthe DAC also turns the laser on and off as required in order to eliminate stray lines between characters.This is called “blanking” and is handled in software. The DAC receives it’s commands via USB form thelaser software running on the your computer. You simply type text into the GUI and click start. The galvoswill move as required to create the text. Your message can now be seen several hundred feet away. It’sthat simple!
USB Controlled Laser Graphics Projector.Provides an opportunity to “reach out” with your message.
Property friendly guerrilla graffiti is a reality.
SAFETY CONSIDERATIONS and REGULATORY NOTICEWARNING: DO NOT SHINE LASER AT AIRCRAFT, MOTOR VEHICLES, BOATS OR LAW ENFORCEMENT!Laser products described in this article are considered “OEM” components and the purchaser is responsible for properlyassembling and installing the components into a finished product that, if entered into commerce, is in compliance with all lawsand regulations. For additional information about regulatory compliance, visit the FDA website at http://www.fda.gov/cdrh.
RON PAUL REVOLUTION 2012
WHAT YOU WILL NEED and WHERE to GET IT.
ITEM DESCRIPTION P/N PRICE1. Enclosure: PAC TEC, CL400 $51http://www.pactecenclosures.com/product-detail.php?productid=55&seriesid=44&classid=262. DAC FRAME STREAMER 2.0 $2003. LASER SOFTWARE NLS 1.7 FreeHardware and Software, http://www.ctrnd.com/NormLaserShow/FSX20.htm4. GREEN LASER, 1000mW Meierlight or Equivalent $9005. GALVO KIT, 30K Space-LAS $244Includes: X & Y Galvos, mount and Drivers, show card, 24VDC power supply, cables6. Misc. Hardware, Including: Aluminum plate, laser mounting bracket, fasteners, handles, fans,switches, wire etc.
Purchase you own “GREEN BEAM” laser projector for “spreadiing the message” with text andgraphics. Complete, ready to use projector availble for $1500.00 from [email protected] message for order details. You supply laptop and tripod. Thanks for your support.
