Just a quick note. If you live in Canada, Radio Shack has a very cheap little IR sensitive card that allows you to "see" the output of IR lasers and remote controls. It is credit card sized, and you just expose it to flourescent (if I remember correctly) light for 1 minute, then it is highly sensitive to IR light for several minutes. It works by reflecting the IR back in the visible spectrum. A LOT cheaper than a video camera if you don't already have one. CIAO - Martin, On Wed, 8 Apr 1998 10:41:43 -0500, Todd Kanning wrote: >Why not use an infra-red spectrum laser. If you have a home video >camera which uses a CCD element you could use it to properly adjust the >beam. (since CCDs are sensitive to IR) As far as I know this would >provide an acurate and invisible beam. I would think you could also >easily use a reflector configuration to conserve cable. If I remember >correctly, the IR spectrum lasers are generally less expensive than the >visible spectrum units. Martin R. Green elimar@NOSPAMbigfoot.com To reply, remove the NOSPAM from the return address Stamp out SPAM everywhere!!!