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Posted

I believe that when the panels do that, one side is or has been wetter than the other side.  The problem is acerbated by poorly made plywood.  The size of the trunks are relatively small and the framing and clamping to a flat surface (I use an old, solid, heavy as heck, exterior door) removed the slight warping of the plywood on my boat.  I also have pieces of angle iron and aluminum that is straight and flat, that I clamp layups to in order to have them harden into the shape that is desired.  For my Spindrift, only 6mm BS1088, Okume plywood has been used, with the sassafras, walnut, and white oak lumber.


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Posted

I tried Dave's suggestion about clamping the matching pieces with the twist in the opposite directions.  I clamped the two boards together with the kingposts to see if that would knock out the twist.  It seems to have eliminated most of it.  I think if I do as y'all have suggested and clamp it down to something flat during the glue up that will eliminate any other problems.  Just have to remember to put some plastic under it when I clamp it down.  I don't really need a centerboard trunk for my workbench.  ;D

Posted

Roll some epoxy on it  overtwist it and let it set up. Do one board at a time. If it comes out good do the other the same way. If it comes out still twisted get  your heat gun to soften the epoxy and twist more. If you over did it let the gun relax it some. You go to school on the first board and the second should be a cinch. Little bit of twist is OK if it goes the opposite way as they will cancel out. Good luck PeterP

Posted

I had similar challenge with my CB case for CS 17 #144.  After doing much of what has been suggested still had a small curve in the base of the CB.  This was eliminated when the CB was glued and screwed to the side of the keel batten.

  • 3 months later...
Posted

It's been awhile but I have been slowly plugging away with construction on my S12.  I have all the seat framing done and the CB installed.  I was cutting the seat top for the starboard side last night.  I am starting to see the light at the end of the tunnel.

I wanted to ask the group where to get 3/8" copper tubing.  I found it at the big box store but since I only need a small piece for the rudder I did not want to buy a 6 ft section of tubing when I only need about 6 inches.  Suggestions??

Thanks,

Craig

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Posted

Go to a plumbing supply store -the real deal-. Wait for the first plumber that shows up and explain what you need. Chances are he will pull out a piece and just hand it to you. Offer to buy him a Coke. That simple- I've done it. PeterP

Posted

Go to a plumbing supply store -the real deal-. Wait for the first plumber that shows up and explain what you need. Chances are he will pull out a piece and just hand it to you. Offer to buy him a Coke. That simple- I've done it. PeterP

haha.  That plumber you run into probably has your scrap piece in the bottom of his tool bag or on the floor in the back of his van.  Bring donuts if in the morning.

  • 1 month later...
Posted

Posting some new pics.

Exterior has been coated in epoxy plus the side buoyancy tanks aka seats.  Next thing is to get all the seats glued in and then seal the interior.  Then I can start fairing and painting.

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  • 1 month later...
Posted

New pictures showing the paint and bailer install.

I cheated a little and used a scrap piece as a prototype to see what I was going to need to do to make it fit.  Nice thing was I was able to use the prototype as a template for the actual hole.  I had to bevel the sides a bit to make it fit and used the countersink bit to create recesses where the screw hole flares would fit.  Once the screws are installed and some bedding compound is in place it will be a nice snug fit.  I thought of recessing it like Greg did in his recent post but I did not want to mess with that.  The flange is not very thick.

I really had to pause for a moment before making the the first hole in the bottom of my nicely painted boat.  I couldn't help thinking "Why am I putting a hole in the boat to get out water?  Wouldn't that be counter-productive?" but in the end I will trust that it will work as advertised.

Craig

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  • 1 month later...
Posted

Rigging is almost complete.  Painting is done.  I have a few more small items to have it ready for launch.  I will be at the B&B next weekend so the launch will have to wait until the following weekend.  This project has been so fun I am kind of sad it is over.  But it will be tough to wipe the grin off my face when it gets launched.

Craig

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Posted

Woohoo, looking great Craig!!  I remember meeting you last year at the B&B Messabout when you were just starting and worrying if you were going to be able to figure this boat thing out and do a worthy job.  It seems you have done more than just figure it out.  I look forward to you launching pictures. 

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