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== Safety information and training == We should have a bunch of helpful information here on safe operation of the device and who to go to to be trained on its use here. Please visit [http://www.z136.org/ ANSI Z136 Safe Use of Lasers] and [http://www.laserinstitute.org/PDF/Z136_1_s.pdf Copy of ANSI Z136.1] for laser safety information. ''Here are [[Laser_Cutter/Full_Spectrum_Laser_40W#Notes|notes on Laser Cutter Use]] uploaded on March 9, 2012'' * Please speak to one of the people who is experienced with this laser cutter before using it so we can show you where everything is, how to setup the software, how to use it without breaking it, basic safety tips, etc. * Read the instructions first. [http://www.fullspectrumengineering.com/files/FSL_40w_Hobby_Laser_Manual.pdf Manual] * Never turn the current up above 15 milliamps, that will fry the laser tube quickly. Usually just a few milliamps is more than enough power to do what you want. Using too much power on wood or paper will start a fire. Instead of turning up the power, turn down the speed and/or use multiple passes. Always use the minimum power you can do to the job to prevent unsightly burn marks and extend the life of the laser tube. * Never operate the laser cutter unattended because sometimes things catch fire. A squirt bottle with water is kept next to the laser to put out small fires. A fire extinguisher is in the corner of the room for larger issues. * If little flames shoot up off of your material, turn down the power. Little flames can start fires and will fog up the lens, which is difficult to clean. * It is easy to make the laser head bang against the side or top of the unit. This causes an awful noise and must be very bad for the gears. If the laser cutter makes a banging noise, stop it immediately and reposition the laser head before the next cut, or resize the artwork. * Do not cut plastics which create hazardous fumes when burned. Acrylic is ok. PVC and vinyl releases the very toxic gas phosgene when heated. As a general rule, chemical resistant plastics should not be put in the laser cutter. * Be very careful with the silver honeycomb, especially when removing it from the machine to clean little bits of debris off of it. It bends very easily and once bent can not be straightened out completely. It is mostly a cosmetic issue, but pressing your thumb in the wrong place will cause permanent marks. * Do not laser materials that make an excessive amount of smoke. A little smoke is ok, but a large amount can fog up the lens. If it is making a lot of smoke, use more passes at a lower power. * When cutting paper, turn down the power to a couple milliamps, or it will catch fire. * The proper operation of the laser requires you to start your cut with the energy nob set to the minimum setting, never turning it past half... If you turn it past half way... about 10-12mw the laser will die within the first few passes of printing
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