Re: mast clamps, Micro
--- Inbolger@egroups.com, "David Jost" <djost@m...> wrote:
I have made hollow masts in the past using spiral-wound cord to clamp
the pieces. I have used the nylon cord or heavy twine that I use for
crab lines. With epoxy's gap filling properties, I have found that
just the spiral-wrapping holds the pieces together adequately while
the epoxy sets. I do wrap the cord as tightly as possible, using
heavy leather work gloves to spare my hands.
I have also read (In WB?) of using radiator hose clamps for this
purpose. With an electric screwdriver, the clamps can be tightened
very quickly.
After I have wrapped the spars, I have sighted down the length and
made small adjustments by bending the spar to make it as straight as
possible.
A word of caution: use the slow hardener or you will have a very
messy race against time to clamp the pieces before the epoxy cures.
Andy Farquhar
>http://www.ultranet.com/~djost/Micro.htmshort . . .
>
> You can view some improvised mast clamps at my web page. I was
I have made hollow masts in the past using spiral-wound cord to clamp
the pieces. I have used the nylon cord or heavy twine that I use for
crab lines. With epoxy's gap filling properties, I have found that
just the spiral-wrapping holds the pieces together adequately while
the epoxy sets. I do wrap the cord as tightly as possible, using
heavy leather work gloves to spare my hands.
I have also read (In WB?) of using radiator hose clamps for this
purpose. With an electric screwdriver, the clamps can be tightened
very quickly.
After I have wrapped the spars, I have sighted down the length and
made small adjustments by bending the spar to make it as straight as
possible.
A word of caution: use the slow hardener or you will have a very
messy race against time to clamp the pieces before the epoxy cures.
Andy Farquhar
http://www.ultranet.com/~djost/Micro.htm
You can view some improvised mast clamps at my web page. I was short
a few clamps (8 to be precise) so I improvised. I used 6X6 squares
of plywood with 4X4 holes in them. The wood from the hole was made
into
a wedge with the belt sander. I was still short some clamps, so I
took a couple lengths of spectra braid that was hanging around near
the glue pot and some two by fours, and made a splint . It worked
very well. At the cost of bar clamps, this seemed like too good an
idea not to share. I had read this in MAIB some time ago, or in
Wooden Boat. I can't remember which.
David Jost "quite happy with the arrival of 10 sheets of 1/4 inch
marine plywood today, too bad my wife saw it arrive first."
You can view some improvised mast clamps at my web page. I was short
a few clamps (8 to be precise) so I improvised. I used 6X6 squares
of plywood with 4X4 holes in them. The wood from the hole was made
into
a wedge with the belt sander. I was still short some clamps, so I
took a couple lengths of spectra braid that was hanging around near
the glue pot and some two by fours, and made a splint . It worked
very well. At the cost of bar clamps, this seemed like too good an
idea not to share. I had read this in MAIB some time ago, or in
Wooden Boat. I can't remember which.
David Jost "quite happy with the arrival of 10 sheets of 1/4 inch
marine plywood today, too bad my wife saw it arrive first."