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Shaping Forms
By:Mike Boren
Date: 7/30/2001, 2:31 pm

I am attempting to build a Guillemot L. I started to set up the strong back the other night and was looking over my forms. I thought I had done a good job of shaping them but on closer inspection they are not perfectly symmetrical.

I purchased the full size plans from Nick, used spray mount adhesive to attach the drawings to 3/4 plywood, rough cut them on my bandsaw and used a Ridgid oscillating spindle/belt sander to clean them up. I thought this would be very accurate but as I was sanding the paper curled a bit. In some place I sanded right to the line, other places slightly over and still others slightly under the line.

The maximum difference in any given area is no more than 1/8 of an inch and probably closer to 1/16. Is this going to cause a problem in the finished boat? Will the hull move a little anyway when I remove it from the forms? How accurate do I need to be?

The sander was borrowed, I hate to ask to use it again, and I really don't want to go out and buy one.

Please tell me what to do!
Mike Boren

Messages In This Thread

Shaping Forms
Mike Boren -- 7/30/2001, 2:31 pm
easy way to check form symmetry
Paul G. Jacobson -- 7/30/2001, 11:49 pm
Re: easy way to check form symmetry
Mike Boren -- 7/31/2001, 4:40 pm
Re: Shaping Forms
Rehd -- 7/30/2001, 11:45 pm
Re: Shaping Forms
Ross Leidy -- 7/30/2001, 4:38 pm
Re: Shaping Forms
Chip Sandresky -- 7/30/2001, 3:51 pm
Re: Shaping Forms
Jim -- 7/30/2001, 3:04 pm
Re: Shaping Forms
Ben Staley -- 7/30/2001, 2:38 pm