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Old 09-01-2008, 10:13 AM #1
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Default WTB: mirrors, difraction grating

i cant seem to find any small mirrors or 'cheap' diffraction gratings. does anybody have some that wouldnt be to expensive.
i want mirrors around 2cm in diametre.
so, do you have them you could sell me or recomend a cheap place.

and, i can find electric motors but are there any great places for them too?
thanks dudes...


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Old 09-01-2008, 10:17 AM #2
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Default Re: WTB: mirrors, difraction grating

Here's a great little tutorial on how to make your own surface mirrors as well as a home-made spirograph.
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Old 09-04-2008, 06:01 AM #3
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Default Re: WTB: mirrors, difraction grating

thats realy awesome (im gonna build it) but the cheapest diffraction grating i can find is this...
http://cgi.ebay.com/ws/eBayISAPI.dll...:X:RTQ:US:1123
i was wandering if you could get an A4 sheet anywhere...
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Old 09-04-2008, 10:23 PM #4
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Default Re: WTB: mirrors, difraction grating

Hi Caleb:

* * * Try reading this thread. * * * *http://www.laserpointerforums.com/fo...num=1219874013 *

*In it I refer to a 3 mirror spiro. I made it with the $40 PCB with parts mentioned in the thread by Bionic-Badger. I used the motors and mirrors that I referred to in that thread. You can also buy his mirrors for $5 more. Then you just need the motors, and a laser, and an enclosure.

* * * *It is a lot of fun building your own. You have to solder though.

* * * * Good luck !!


* * * * *Docjohn *
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Old 09-05-2008, 01:10 AM #5
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Default Re: WTB: mirrors, difraction grating

I have 2 difraction gratings available for sale. *2&quot; x 3&quot;, 1000 lines per mm $10 for both shipped or $5 for one.
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