Just thinking about this, and I'm sure you got there before me... The axis that the laser rotates in will have to be perpendicular to the plane of the laser and the waterline, otherwise the pointer will follow a curved path. Did I make that obscure enough? Giles Morris Arlington VA Montgomery 15 "Umiaq" Vancouver 25 "Dolphin" Miscellaneous small craft -----Original Message----- From: chbenneck@juno.com [mailto:chbenneck@juno.com] Sent: Friday, February 21, 2003 2:45 PM To: montgomery_boats@mailman.xmission.com Subject: Re: M_Boats: Vibration Sybil, Great idea for marking the "real" water line of the boat. But now I've got my new toy and will have to play with it before I can try your idea. Thanks for the idea. Connie _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats