Read about the new biaxial tape for small boats.
See the complete article in the updates section.
Friday, 21 November 2008
Stitch and Glue 101 - Epoxy Glue
Thursday, 03 March 2005
Gluing the Long Panels:
Note the paper under the seam to prevent the parts to become glued to the shop
floor. Plastic sheeting is even better.
The butt blocks are generously coated with epoxy glue.
Epoxy glue:
Epoxy glue is liquid epoxy resin mixed with woodflour to a peanut butter consistency.
See the HowTo files about resin, glue and putty to learn more about mixing those
ingredients: http://bateau2.com/content/view/99/28/
Glue the butt block to the panels and puts some weights on the butt block.
Do not apply too much pressure. Epoxy does not require a tight fit quite the
opposite. If you push all the glue out with too much pressure, the bond will
fail.
Wait a few hours for the epoxy to cure, ideally overnight.
During that time, you can cut the frames and transom. The frames are made of
straight lines. They are easier to draw and to cut than the side and bottom
panels. You probably will not need it but there is a separate detailed HowTo
file that shows how to drawn a frame on the plywood and cut it: How
to Cut a Plywood Frame
Frames:
The side panels will bend around the frames. Before assembly, we will add battens
to the frames and drill some holes in the long panels for the stitches.
The FL12 frames are ?framed?. This means that we epoxy glue a batten all around
the frames but only on one face. That face will be the inside of the seats.
The battens add stiffness to the thin plywood and provide a good contact area
for the epoxy glue.
Note that this is specific to the FL12: most of our other boats do not require
any battens around the frames.
The exact section of the battens is unimportant. Epoxy glue the battens to the
frames and transom.
Look at the the construction drawing. It shows that you need battens on one
side of each frame and on the inside face of the transom. The battens run along
the edge of the frames except for the transom where there is only a batten at
the seat level. That seat level is shown on the plans.