Click on any image to see the
full size version
Graphite lashing hooks for kayak hatches #3
Clamp on a piece of wood so that the mandrel is squeezed 'out' and away
from the table edge. Since the plastic mold is held firmly at the table
edge and also by the wood, the tapered mandrel wants to slide away from
the table edge and from under the pressure of the 2 x 4 wood. This compresses
the fabric between the plastic and the mandrel. Clamp it hard and remember
that epoxy will be oozing from the sides.
Let it harden. Slice through the lay-up on the hook side along the length
of the mandrel. Make sure that the clear tape wrap on the mandrel is long
enough at the trailing edge so that the folded over lay-up doesn't fuse
together all the way around the mandrel!
Under normal circumstances, creating a single part mold that would lock
the finished component inside due to the taper is a no-no but in our one-off
process the mandrel is destroyed and must be removed while the epoxy is
still quite elastic the next day or so.
Finished blank. Trim the edges and ends of the blank to remove thin sections
and imperfections. This piece will yield enough lashing hooks for three
kayaks. Again, the hooks have glossy, smooth surfaces on both sides.
If you notice
any problems with the site (i.e. error links, missing images) please, let
me know. Thanks
10 Colonial Court apt. 73
Stoneham, MA. 02180
- 2020 Copyright Vaclav Stejskal
All rights reserved
Last page update:
11 January 2020