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I have purchased some 3VDC Radioshack motors to power the three mirrors in my spirograph (http://www.radioshack.com/product/index.jsp?productId=2102822). I have been reading about gluing mirrors to motors and that any imbalances on the motor can generate a great deal of noise and be unstable...

I am about to begin my first laser spirograph and am concerned about the safety of my eyes and those of anyone viewing my project. The spirograph will be left on 24/7 lighting up one of the walls in my house, powered by a 5mW 532nm laser with three mirrors. I have purchased my laser from...

Thank you very much for all of the advice and information on constructing a laser project. Now I can't wait for my new laser modules to arrive and build my own spirograph! I researched the LM317T regulator for about 3 hours over the past two days and with a trip to Radioshack built myself a...

Thank you very much, you very quickly answered all of my concerns. I have a two final questions. 1) From my understanding the LM317 is a variable voltage resistor that can take a large range of voltages (from 3-40v) and always outputs 3v so as not to over/underload the laser. It goes in...

I am interested in building my own basic spirograph that will have three motors (with mirrors attached) and each motors voltage controlled by a potentiometer, a fan to blow air over my laser module, and the laser module itself, all powered by a AC/DC power adapter. This project will not use a...

Thank you so much for your quick responses and thorough information. Laserwanabe, I will purchase three of these laser pens as they are the perfect solution for my projects. Hopefully soldering on some fins and using some fans for cooling will allow them to run indefinitely.

Oh, that sounds perfect then. I've been reading about Deal Extreme's policy not to accept orders to the United States for lasers above 5mW, however this policy is often ignored. Is this true? I'd love to purchase the 35mW Deal Extreme laser if I could. I would also be willing to pay another...

I live in the the United States (California) and do not want a powerful laser. With the use of a diffraction grating and a speaker with a mirror glued onto it I intend to light up my ceiling with a laser pattern. Being in the living room where my guests and I spend most of our time, it needs to...

I'm considering buying the AtlasNova module for $65, however the company doesn't seem to sell heat sinks separately. Will having a fan or two blowing over the laser be enough to let it run indefinitely?

I've browsed NOVALasers, Optotronics, LaserGlow, DealExtreme, eBay, and countless google sites trying to find a 5mW green laser module. I need a laser that can be left on all day, I don't know anything about how to apply a heatsink to a laser module, and if I need to blow a fan over it that's...

I am planning to create both a spirograph and the mirrored speaker with a diffraction grating. For the setup, I will have a small mp3 player always playing music attached to an extracted large headphone speaker. Glued to the center of the speaker will be a small mirror, and this piece will be...

Thank you very much for the information, it's helped a lot in my understand of how to make this work. I am finding it difficult to find anyone that sells a low power laser module, everything seems to be a laser pointer with the casing taken off and titled a module so it can be sold without...

Hello there, I enjoy creating lighting projects to illuminate my house that are enjoyable and are pleasing to the eye. I've been interested in using lasers for awhile, but am concerned about the possible damage to the vision of myself and my house guests. I have stumbled across a guide based on...