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killer n00b
Modified 10mW Greenie
Joined: 09 Jun 2008
Posts: 14
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 Posted: 7/24/08, 4:05 PM Post subject: Laser proj |
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| I really want to make a homemade laser projector/ show object... One that you shine the green laser through a diffraction gratings and out comes multiple beams.. I have see some you tube videos of people using a motor to spin them.. Any ideas on how to make them and where to buy the diffraction gratings? Cheap is always good if it works... |
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SteelTigers
Nexus Laser
Joined: 30 Mar 2007
Posts: 101
Picture(s): 39
Movie(s): 2
Location: USA
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| Posted: 7/24/08, 4:14 PM Post subject: |
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You can usually find gratings for sale using google.
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0RTH0V4N4D4T3
Modified 10mW Greenie
Joined: 18 Jul 2008
Posts: 16
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| Posted: 7/24/08, 6:24 PM Post subject: |
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you can buy a pair of 1000/13500 lined gratings off ebay for around $10.
you can easily attach this to a motor for awesome effects. |
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Bluefan
Fusion Laser
Joined: 20 Apr 2008
Posts: 299
Movie(s): 1
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| Posted: 7/25/08, 3:43 AM Post subject: |
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Use a small piece of a CD for a mirror. It doesn't give much lines, but if you use two it could look very good. Still, this is the lost cost solution  |
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