MikeP
Well-Known Member
- Joined
- Mar 13, 2002
- Messages
- 1,460
I decided not to restore the old Crapshooter, going to build a big brother for the 3.5 CF rigger. I enjoyed posting pictures as I built the last one and would like to do it again.
First picture, this is the mold for the hull in pieces.
http://69.27.9.16/mikep/cf90/pieces.jpg
The mold was Hammerheads idea and is very easy to build and use. It has mylar glued to the mold surfaces this will give a nice glossy finish.
This how I made the mold for the hull
The wood is particle board. It's cheap comes in smaller pieces for shelves and is really flat. Other wood I have used is always warped. I cut the pieces the size I want the hull to be. Drill holes and screw on the sides. Make a block for the angle of the bow. It should be 50% of the height of the hull side walls. For the bottom former of the hull I used fiber board, cut it to fit inside the hull. The fiber board will collapse in the vacume bag so I used some foam to support the fiberboard where it angles up. Use 3m 77 spray adheasive to glue mylar to the mold. disasemble the mold, glue on the mylar drill out the screw holes sand the mylar flush with the edges and reasemble.Take extra time making this mold, make sure it is straight and has no gaps. It can be used many times. This can be either the top or bottom. For the other half you will need to shim it out thickness of the hull sides or cut it smaller. Hammer made two molds one a little wider than the other.
-MikeP
First picture, this is the mold for the hull in pieces.
http://69.27.9.16/mikep/cf90/pieces.jpg
The mold was Hammerheads idea and is very easy to build and use. It has mylar glued to the mold surfaces this will give a nice glossy finish.
This how I made the mold for the hull
The wood is particle board. It's cheap comes in smaller pieces for shelves and is really flat. Other wood I have used is always warped. I cut the pieces the size I want the hull to be. Drill holes and screw on the sides. Make a block for the angle of the bow. It should be 50% of the height of the hull side walls. For the bottom former of the hull I used fiber board, cut it to fit inside the hull. The fiber board will collapse in the vacume bag so I used some foam to support the fiberboard where it angles up. Use 3m 77 spray adheasive to glue mylar to the mold. disasemble the mold, glue on the mylar drill out the screw holes sand the mylar flush with the edges and reasemble.Take extra time making this mold, make sure it is straight and has no gaps. It can be used many times. This can be either the top or bottom. For the other half you will need to shim it out thickness of the hull sides or cut it smaller. Hammer made two molds one a little wider than the other.
-MikeP