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From: grege@gold.GVG.TEK.COM (Greg Ebert)
Newsgroups: sci.electronics
Subject: Re: Kludged Laser Power Supply
Message-ID: <1049@gold.GVG.TEK.COM>
Date: 31 May 90 19:25:47 GMT
References: <5395@jhunix.HCF.JHU.EDU>
Organization: Grass Valley Group, Grass Valley, CA
Lines: 17

In article <5395@jhunix.HCF.JHU.EDU> ins_atge@jhunix.UUCP (Thomas G Edwards) writes:
>
>I spent last night bouncing the laser around......
>
>Now all I need are two galvometers...
>

	Try mounting a mirror fragment on a speaker. You can get x-y
	positioning with your stereo. Better yet, get several DC motors
	with separate voltage control. Place a mirror slightly 
	off-perpendicular with respect to the axle. Zig-zag the beam
	between 3 or 4 motors, and finally onto you wall. Vary the
	voltage on the motors to your heart's content. You can get
	some incredible patterns. For maximum enjoyment, crank-up some
	Pink Floyd, have a few drinks [or whatever :-) ], and enjoy.