My First StarCraft; 1975 18' SuperSport

classiccat

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Re: My First StarCraft; 1975 18' SuperSport

It would be in poor taste to wish you happy Friday if you're Catholic...so, hello!

My excitement was short-lived when I discovered that I didn't remove the twist from my PLY. Spring-back and/or I was simply on a favorable spot on my concrete floor? :noidea:

So I decided to cut my losses and reserve a portion of transom #1 for the Bluefin; smaller footprint that can be taken from the sweet spot that isn't twisted.

I paid my local lumber yard another visit on the way home from work yesterday, grabbed another sheet of PLY. Top-veneer looked gorgeous.

Unloaded it from the truck directly onto the sawhorses, transferred the pattern and started cutting...and noticed the sawdust collecting in the center of the board :eek:

Stopped cutting, flipped it and discovered that it has a nice deep cup to it :mad:

I checked the large scraps from the 1st transom and they also are warped. :mad2:

I'll call the lumber yard to complain and maybe they'll throw me a discount on the deck ply.

I'm fairly certain that the freshly cut pieces can be salvaged by flipping them so that the convex surfaces face each other since the warpage from each 1/2 will counteract one another. The curves will naturally meet at the kneebrace. I'll also use about 1,000,000 drywall screws.

I didn't do that on the transom #1; the warpage from each 1/2 was cumulative.

Hard Lesson: Check your plywood BEFORE cutting AND before laminating. Most of you probably already know this...but if you didn't, maybe you still don't because I'm not sure what I said above makes 1-bit of sense :lol:
 
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GA_Boater

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Re: My First StarCraft; 1975 18' SuperSport

Start the screws in the center and work out toward the edges. Just a reminder, Blue. How much time do you have before the Non-Tite-Bond (I had to :smile:) epoxy begins to set? Maybe pre-drill 500,000 of the 1,000,000 screw holes to get it pinned faster?
 

classiccat

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Re: My First StarCraft; 1975 18' SuperSport

Start the screws in the center and work out toward the edges. Just a reminder, Blue. How much time do you have before the Non-Tite-Bond (I had to :smile:) epoxy begins to set? Maybe pre-drill 500,000 of the 1,000,000 screw holes to get it pinned faster?

Mucho working time.

I have the holes marked... I'll drill them just enough to provide center for the countersink.
 

classiccat

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Re: My First StarCraft; 1975 18' SuperSport

Or you could just use tightbond

Studio-Portrait-of-the-Vi-007.jpg


^^^ glue trolls are out tonight, eh? :p
 

dozerII

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Re: My First StarCraft; 1975 18' SuperSport

I hear you on the warped ply BF, seems to be all we can buy up here. It makes planning how to incorporate the curve to enhance the build challenging to say the least.
 

SigSaurP229

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Re: My First StarCraft; 1975 18' SuperSport

I dont think straight plywood is possible to buy anywhere
 

Watermann

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Re: My First StarCraft; 1975 18' SuperSport

Studio-Portrait-of-the-Vi-007.jpg


^^^ glue trolls are out tonight, eh? :p

Hey BF your the twisted one here remember? :lol: Oh crud can I be the biker this time?

My ply was the same way, cooked as a dogs hind leg but I had 2 sheets for the chief and of course just cut to the loose dimensions, laminated and then cut out to shape. The warpage put together to counter act is what I did, it came out straight as an arrow.
 

classiccat

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Re: My First StarCraft; 1975 18' SuperSport

Hey BF your the twisted one here remember? :lol: Oh crud can I be the biker this time?

My ply was the same way, cooked as a dogs hind leg but I had 2 sheets for the chief and of course just cut to the loose dimensions, laminated and then cut out to shape. The warpage put together to counter act is what I did, it came out straight as an arrow.

Good to hear agua-brutha. Yeah man, you can be the biker...I guess the flamin' cowboy wasn't your thing :lol:

Round 2 last-night / this-morning:

Glued applied to the bottom piece:


I was going along (starting from center) screwing the PLY halves together and noticed that I wasn't getting squeeze-out as I progressed to the edges...quickly realized that you still must clamp. Leap frogging 2x4's & Irwins worked great...squeeze just enough so you start to see glue squeeze-out and stop...then drive-in the deck screws.


Fastened with deck screws and then used the remaining epoxy/cabosil to fill the countersinks/screw-heads:


It's now safely on the floor with 35 gallons of water keeping it flat.

Hopefully someone stops by the hanger this afternoon to bang-out the final 22 RIVETS!! :madgrin:
 
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astor

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Re: My First StarCraft; 1975 18' SuperSport

I removed all the screws used for glue-up since I didn't plan ahead to put them where I wouldn't need to drill holes at later time
 

classiccat

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Re: My First StarCraft; 1975 18' SuperSport

I removed all the screws used for glue-up since I didn't plan ahead to put them where I wouldn't need to drill holes at later time

I marked all of the through-holes beforehand ...so I was able to go crazy with the glue-up. :madgrin:

Ken stopped by for the FINAL RIVETS! Spray-rail patch :clap2:


We've been celebrating ever since (hence no additional progress) :D
 

cpdchap

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Re: My First StarCraft; 1975 18' SuperSport

I owe you a huge thanks! Had a knee brace problem and everyone said you were the Master, and they were right. I copied your repair and love it...........don't worry I made it very clear where I stole the idea. Thanks again and beautiful job on your build.
 

InMotion

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Re: My First StarCraft; 1975 18' SuperSport

Nice work as usual there BF! Looks terrific... man you'd hardly know that that wasn't original!!! :)

J.
 

classiccat

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Re: My First StarCraft; 1975 18' SuperSport

I owe you a huge thanks! Had a knee brace problem and everyone said you were the Master, and they were right. I copied your repair and love it...........don't worry I made it very clear where I stole the idea. Thanks again and beautiful job on your build.

Thanks Cp! I can't take the credit for the idea...Tin Maestro Glen recommended this awhile back :cool:


Nice work as usual there BF! Looks terrific... man you'd hardly know that that wasn't original!!! :)

J.

Thanks Jim!

The spray-rail is happy again :D
StarcraftSSDemo20130421_MG_0792_zpsdf5ffab8.jpg


Once the 5200 cures, she'll be ready for a leak-test :thumb:
 

Watermann

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Re: My First StarCraft; 1975 18' SuperSport

Very nice to see you back at the tin, wood working is a sticky wicket sometimes. :rolleyes:
 

classiccat

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Re: My First StarCraft; 1975 18' SuperSport

Very nice to see you back at the tin, wood working is a sticky wicket sometimes. :rolleyes:

Thanks dude! Once I get the transom installed, I'll flip for the last big tin project...a series of Keel patches.

...and speaking of transom, Version 2.0 came-out perfect; zero warp! :thumb:
 

barato2

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Re: My First StarCraft; 1975 18' SuperSport

coolness on your transom. i had to do mine twice for the same reason.

i like malted beverage fumes for helping 5200 cure.....i swear, i can sit there and watch it turn the boat into a 52' Hatteras, by the time i've had a half dozen or so....:rolleyes:
 

classiccat

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Re: My First StarCraft; 1975 18' SuperSport

coolness on your transom. i had to do mine twice for the same reason.

i like malted beverage fumes for helping 5200 cure.....i swear, i can sit there and watch it turn the boat into a 52' Hatteras, by the time i've had a half dozen or so....

It's up there with life's more painful lessons...especially when dropping C-spots on marine PLY!

Transom was cold so I gave it a 6oz blanket:



wet-out beautifully with U.S. Composites:


I've blown through gallons of West Systems on prior projects...and I'll tell ya, don't waste your hard-earned cabbage on that stuff when U.S. Composites can be had 40% cheaper.

The Big Brown truck made another visit yesterday! ...talk about a show watching him walk a trailer axle & suspension up my driveway :lol:


I'm still undecided on what to do with this trailer frame. I'm thinking of just cleaning it then hitting it with a light coat of cold galv for aesthetics. 40 year-old frame is in great shape!
 
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GA_Boater

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Re: My First StarCraft; 1975 18' SuperSport

You are such a caring owner, BF. Covering the T. wood with a blanket is so thoughtful. :lol:

The trailer frame does look good. The cold galvanize ought to be the ticket.
 
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