I've always done it with a transit, but a laser level should do fine. When you finish one side, without moving the level mark a spot on a wall that you can see from the new side, which will set the level up perfectly. Once I worked on a powerboat tooling project in Puerto Penasco, Mexico (I was a gringo wetback) and the Mexicans struck waterlines with a long string; a bit longer than the boat. They cut a stick to the len gth equal to the height of the waterline above the pavement, marked a starting place on one end of the boat and attached the string there, with the other end attached to the pole. The pole man slowly wrapped the string around the hull while the helper taped it into place. It worked surprisingly well, but it does take some skill and a good eye. Better to go rent a transit.
jerry ----- Original Message ----- From: "Arnold Sharpe" <[EMAIL PROTECTED]> To: "For and about Montgomery Sailboats" <[email protected]> Sent: Wednesday, December 03, 2008 5:40 PM Subject: M_Boats: idea >M sailors, > A couple of months ago I recall someone out there asking how one goes > about accurately painting the waterline on a lapstrake hull....like > my M-17 "Little Breeze". A good question because my last attempt > was pretty sloppy (I had a difficult time treading water while trying > to paint ). This afternoon while working in the shop I got an idea > which I am anxious to try and wondered if anyone had already tried > it. Among my many tools is a laser level. What if I put "Little > Breeze" on her trailer.leveled her up fore and aft and athwart ships, > set the laser level up about 20-30 ft away, adjusted it to match the > existing waterline mark at any place and then penciled where the > laser line was along the rest of the hull. As soon as I get a clear > (not raining) day I'll try it and let you all know, in the meantime, > if you have any comments, or have already tried it, let me > know...Regards. Arnold Sharpe, M-17 #265, "Little Breeze" > > _______________________________________________ > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > > -- > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.552 / Virus Database: 270.9.13/1825 - Release Date: 12/2/2008 > 8:44 PM > > _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
