hull extension in progress with pics

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

hay how did your hockey team do , I forgot to ask ?? John

we got knocked out on 7 games.....we had a 2-0 game lead but the referees therw the game...it was really bad...the whl is looking into it now...

so im goin for robj's team now...the vancouver giants.....the defending champions.....but now there in a game 7 situation as well.....the refs arent helping.....


ok.....todays up date comin......

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

it was a glassing day today.......


the first job was to continue with the stringer glassing....these are the 5 inch multipule small layups i was doing earlyier.....

this is that job compleated

next was to start on the 1708 layups.......i had some scrap cloth i wanted to use...this was the perfect oppertunity....so it took me two hours to find all the right sizes and pre fit them to encase the stringers....

this session it not to wrap the stringers ...but to bulk up the sides...

you can see the overlap is now 6 inches

the big 1708 requires alot of working to get the air out.....so i only did 4 sections of single layers...... i will be doubling the 1708 on each string....theres a lot of em......

it was 11:00 when this was compleated... i was just gonna do another two layups.....but the girl called ....and it was time to come home......

more tommorow

cheers
oops

 

[JustJason]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

while your in there you should think about glassing in some 4X4's for the engine mounts...
Other than that lookin good!!

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

thats part of my delemma capt,

unless i can find some good 6x6 kiln dried lumber, that glass will stick to, im back to the pt layers in the mount section. typically glass doesnt like demensional lumber.....

robj's solution is very intresting....

the current setup is prone to trap water ....even tho ive tried to build around the water trapment, it still will not be optimal.

 

[Robj]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

When you have figured out how you are going to mount the engine and the stringer arrangement, you should encase the entire stringer with glass, including the tops. You will make it stronger by doing so. There is a guy in Ontario who helped me out a great deal. If you want give me a call and I can dig up his phone number. He may be able to give you some insight.

Have a great day,

Rob.

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

after the 2 layers of biax on each side...im hoping i can wrap them...if not then ill have to cap them

 

[jcsercsa]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

OHHH MAN sorry about your hockey team !!!! that stinks when the refs just wont let them play !!! my teams doing good !!!!!! red wings !!! play again tonight !!

Yea ooops why didnt you cap the top of the stringer?? is it that bad to bend the glass ??

On the outer stringers you did go past the extension ??

Man it really looking good ooops !! I will be on mine tomarrow , today is my friday !!!! yeeee haaa neen a long week !!

Ok keep up the good work !!!! john

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

Yea ooops why didnt you cap the top of the stringer?? is it that bad to bend the glass ??

On the outer stringers you did go past the extension ??

the glass does not like to bend....you get massive air pockets...

the two layers i did....(showing the wetout process) were to just tab in the strings to the bottom of the hull.....

the big 1708 layers, are the real encasement.....im hoping they will be wide enough to glass round the top of the stringers. if not.....ill have to cap them off...but id rather use a full layer of glass to wrap them.

and the outer stringers are 2 feet past the extension section.

 

[WizeOne]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

Oops, you need some beef in those motor mounts. You ought to be able to get some dried dimensional lumber, soak it all around with resin, oops it to the hull, wrap it all up in your biax, drill your mount holes and treat them and you'll be good to go

What you do not want is a 'boxed' motor mount, where the mounting lags are going thru thin wood and hanging out into the miasmosphere. Please see my previous post on this subject. It is not that complicated.

As to the 'water trap' issue, maybe you could provide a line drawing? I cannot forsee an issue that would not be either easily avoided or easily sealed.

In the case of my boat, I could submerge the bilge in water, right up over the mount feet and ZERO water would get into the mount stringers thru the lag holes.

 

[MarkV_Deep6]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

Could Seacast be used to create the engine mounts as a wood replacment? It's advertised as a stringer replacment.

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

the motor mount boxes are not complete.....they are open so i can glass the inside and out side of them.

in the origonal...."inside" the boxes was an angled peice of wood. that conformed to the hull on one side...(the bottom) then was level on the top)

so it was angle cut......on top of that was three peices of plywood stacked on the flat.....just cut to size and laying in there...stacked on top of each other...then the top was glassed over.....

the lag bolts went thry the three layers of ply plus the top.....

there was a drain hole in the box to the bilge...but the wood was so wet i squeezed it out with my hand.....

i could replicate that process and glass each board. then leave drain holes in the box.....but i dont like the system....

i would use dimensional lumber....but i wont be able to find any kiln dryed 6x6s around...and if i can find them....dimensional lumber does not like glass too much. and air voids will be all over, thus negating the water proofing of the glass ..... but im looking for a dimensional stock now...as its time to go in.

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

Could Seacast be used to create the engine mounts as a wood replacment? It's advertised as a stringer replacment.

ive given that brief thought...actually id like to try it.....but thoes would be very expencive motor mounts, as the channel is 6 ins wide by 7 ins deep by 40 ins long

 

[redfury]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

ive given that brief thought...actually id like to try it.....but thoes would be very expencive motor mounts, as the channel is 6 ins wide by 7 ins deep by 40 ins long

Never have to worry about rot though!

 

[Robj]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

Even if you used Seacast, it would only act as a medium to secure the lag bolts to. You still need to make the structure that would transfer all the engine load and thrust to the hull, which requires a fair bit of fibreglassing.

Have a great day,

Rob.

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

Even if you used Seacast, it would only act as a medium to secure the lag bolts to. You still need to make the structure that would transfer all the engine load and thrust to the hull, which requires a fair bit of fibreglassing.

Have a great day,

Rob.

the schedule is........a 2 inch strip and a 4 oz strip..(10 oz csm)

4 layers (2 each side) 25 oz (1708) a possible two top wraps of 1708....

thats sach stringer...then the "box" gets a double wrap of 1708 and a final layer of 10 oz csm and finished with a wax layer....those puppies arent moving....ever.....

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

ok....off to the boat i go....

just wanted to let you know.....i just talked to iboats about a throttle control.....because its a canadian order.....there is a little more to it than a states order.....they were able to tell me shipping dates.....total landed prices...(thats a lot different when you include customs, duty and both of our taxes, including shipping)........i was really impressed....actually got to talk with a human being in just a few seconds.....the price seemed really competitive.

my mechanic is going to check if it will work in my application....if it does....

 

[lundnisswa]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

1708 Biax.
Oops; have been watching your thread all along-great work!
I have been glassing the Stringers on my Lund Nisswa Resto, man do I have a hard time getting air removed from that 1708. I have tried every method you guys have mentioned, and still have very small (1mm sized) bubbles all over the place. Am at my wits end with these bubbles, so have been pressing on. Have only had a few Big Bubbles (That appeared after I applied heat lamps, have been grinding those out).

So if I have small bubbles all over, how does this affect the performance of the fiberglass, i.e., strength??? Water proofing??? or what, just curious I guess cause I am actually almost done with the strings, just ran out of resin, awaiting UPS to show up.
Thanks
Lund

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

i worked my butt off to get thoes stupid bubbles out.

there is a special roller you can buy to get air out...it looks like a paint roller but it has ridges on it.

it is unlikely that water will intrude the small bubbles in multiple layers.
but there cant be a whole lot of em in one area !....

when your wetting out the area to be glassed...try really coating the area with resin...and rubbing in the resin....even tho its acetoned....when you wet out the area the resin might not totally adhere it self with the substrate....try a spot an look up close...just run a quick resin filled roller over a surface and see.......see thoes little spots that didnt quite get covered?....thats 50 percent of the battle...!
when you add the glass and more resin....those little bubbles get trapped underneath the glass.
so when you wet out the area....rub the resin well into all surfaces...then add some more!
then add the glass.....
after the glass is on, make sure you use a lot of resin to wet the area out and really coat it when glassing....ondarvr told me to "just pour it on" .....the exess resin can be mopped up with a non saturated roller and used on the next area.

hope that helps......i have micro bubbles in mine too...and there a pain...but "perfect" and "boat building" are not words that go togeather.

ive been watching your thread all along....and your doin a really good job !
i would post more on it ...but too many cooks spoil the broth, and erik gives really, really, good advise.

cheers lund.......keep atter
oops

 

[oops!]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

btw....if there is a ton of em in one spot....the bond isnt as good as it could be....... if the area is all white.........get the grinder out

it also depends on what area your glassing, and how well it needs to be bonded....if your in a non critical area of a multiple layer layup......thats a judgment call if you want to re-grind the area

 

[Coors]

Re: hull extension in progress with picks

Re: hull extension in progress with picks

Oops, this might work; go to a wood or truss manufacturer/ dealer. Tell them you need an old, dried out piece of fir glulam beam that is gathering dust( I had mine for years, sitting in the shop-knew I would need it one day).
Dried Douglas fir is good; those beams come big, I used a 6"x 12" for mine, had to do the angle cut. But encased in epoxy, in a f/g stringer, drilled the lags, then pulled them out, shot in 4200, then re-installed.
Best way I could figure. Just keep the bilge water down to no more than 2" deep from the sodden skiers coming aboard.