Re: [bolger] Build again!

I always epoxy and glass tape my PVC potato guns. It sticks well but I do not
know about flexibility, the pipe lengths I use are pretty short. I have not
had an epoxy/taped one explode yet like the non reinforced ones do. I suspect
the loads are quite high.
Justin Meddock
> Chuck,
>
> As Pointy Skiff #2 takes shape, I have also had the opportunity to make
different
> mistakes on the same model. Go figure.
>
> Jim
>
Jim:

Are you going to keep this one for yourself?

Chuck
Chuck,

As Pointy Skiff #2 takes shape, I have also had the opportunity to make different
mistakes on the same model. Go figure.

Jim


>> If you have built a boat, you really owe it to yourself to build
>> another. It is so much more fun than the first one! I find myslef
>> chuckling as I recognize the mistakes I won't make this time, how much
>> quicker and more skilful my hands are, and how much more elegant the
>result
>> is.
>
>Amen to that, Bill
>
>> And after this one, on to the light schooner and new mistakes.
>> Abd speaking of that, have any of you experimented with covering PVC pipe

>> with fiberglass, to get something stiff enough for a mast? I have beefed

>> up not-thick-enough rectangular spars- wood- with glass tape and got a
>good
>> result....
>> Bill Wallace in Houston
>>
>I am not sure that covering pvc pipe with glass would be such a great idea:

>for one thing, the pipe is very flexible, and I don't think it would add any

>strength. Also it is quite heavy. I would think that putting glass over
>foam would be more productive. (disclaimer: the above statement is based on

>pure conjecture, not actual experience)
>
>Chuck
>
>P.S. By the way, Bill, are you planning to make Tim Webbers messabout this

>year?
>
>
>
>Bolger rules!!!
>- no cursing, flaming, trolling, or spamming
>- no flogging dead horses
>- add something: take "thanks!" and "ditto!" posts off-list.
>- stay on topic and punctuate
>- add your comments at the TOP and SIGN your posts
>
>
>
Bill,

Have you considered birdsmouth? If you have a tablesaw it's easy and
straightforward, and results in a superior hollow spar.
Alternatively, check out this site:

http://catalog.com/bobpone/coldmoulded.htm

It's PVC based as well.

John O'Neill

--- In bolger@y..., Bill Wallace <wwostar@h...> wrote:
> If you have built a boat, you really owe it to yourself to
build
> another. It is so much more fun than the first one! I find myslef
> chuckling as I recognize the mistakes I won't make this time, how
much
> quicker and more skilful my hands are, and how much more elegant
the result
> is.
> And after this one, on to the light schooner and new mistakes.
> Abd speaking of that, have any of you experimented with
covering PVC pipe
> with fiberglass, to get something stiff enough for a mast? I have
beefed
> up not-thick-enough rectangular spars- wood- with glass tape and
got a good
> result....
> Bill Wallace in Houston
--- In bolger@y..., Bill Wallace <wwostar@h...> wrote:
> If you have built a boat, you really owe it to yourself to
build
> another. It is so much more fun than the first one!

It was just this sort of thinking that got me where I am today, with
two boats in the garage, two out by the pond, and one serving as a
4400 lb., 22' long, lawn ornament -- not to mention the three boats I
sold, the one I lost, and the one my father fed to his pet termites
<g>...

Still, they have *all* been fun to build,

david (porky) galvin
I briefly considered this for one of my boats...

By the time you buy the PVC pipe, the fiberglass, and the epoxy to do this,
you could have bought a couple of doug fir 2x10's, a power planer, and some
wood glue, and made a wood mast.

It comes out about the same, and the wood mast is lighter, stronger, and
looks better.


Richard Spelling,http://www.spellingbusiness.com/boats
From the muddy waters of Oklahoma

> Abd speaking of that, have any of you experimented with covering PVC pipe
> with fiberglass, to get something stiff enough for a mast? I have beefed
> up not-thick-enough rectangular spars- wood- with glass tape and got a
good
> result....
> Bill Wallace in Houston
>
> I am not sure that covering pvc pipe with glass would be such a
great idea:
> for one thing, the pipe is very flexible, and I don't think it
would add any
> strength.

To rephrase Chuck's comment: The strain tends to be put entirely on
the member that has the least 'give' (e.g. least stretch). Since the
PVC is very flexible, all the strain will go on the fiberglass. So,
you have to think that you are building a fiberglass mast using a PVC
male mold. If you use that much glass, then it will probably be heavy.

As reinforcement for wood, it may have worked ok, but the mechanical
properties of wood and glass/epoxy are close enough to work together,
especially if the wood structure is almost stiff enough on its own.

Peter
> If you have built a boat, you really owe it to yourself to build
> another. It is so much more fun than the first one! I find myslef
> chuckling as I recognize the mistakes I won't make this time, how much
> quicker and more skilful my hands are, and how much more elegant the
result
> is.

Amen to that, Bill

> And after this one, on to the light schooner and new mistakes.
> Abd speaking of that, have any of you experimented with covering PVC pipe
> with fiberglass, to get something stiff enough for a mast? I have beefed
> up not-thick-enough rectangular spars- wood- with glass tape and got a
good
> result....
> Bill Wallace in Houston
>
I am not sure that covering pvc pipe with glass would be such a great idea:
for one thing, the pipe is very flexible, and I don't think it would add any
strength. Also it is quite heavy. I would think that putting glass over
foam would be more productive. (disclaimer: the above statement is based on
pure conjecture, not actual experience)

Chuck

P.S. By the way, Bill, are you planning to make Tim Webbers messabout this
year?
If you have built a boat, you really owe it to yourself to build
another. It is so much more fun than the first one! I find myslef
chuckling as I recognize the mistakes I won't make this time, how much
quicker and more skilful my hands are, and how much more elegant the result
is.
And after this one, on to the light schooner and new mistakes.
Abd speaking of that, have any of you experimented with covering PVC pipe
with fiberglass, to get something stiff enough for a mast? I have beefed
up not-thick-enough rectangular spars- wood- with glass tape and got a good
result....
Bill Wallace in Houston