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My Pocketship Build Progress

PostPosted: Sun Mar 28, 2021 12:48 pm
by doug@dougbraun.com
I glued down the second main deck piece today, so I am finished with the lower hull assembly,
ready to move on to Chapter 3 of the manual.

deck.jpg
Main deck in place
deck.jpg (134.75 KiB) Viewed 298 times

Re: My Pocketship Build Progress

PostPosted: Tue Mar 30, 2021 7:44 am
by riverron
Looking good! Before attaching the rear cabin wall,I would suggest doing a dry fit with the rear wall and the seat backs. I know there have been several instances where the seat backs come up about 1/2 inch too short. If I recall correctly you should be able to wire things in place before fillets and adjust. I moved my rear cabin wall back some. Enough to have to redrill some holes for the wires.

Re: My Pocketship Build Progress

PostPosted: Tue Mar 30, 2021 9:24 am
by doug@dougbraun.com
riverron wrote:Looking good! Before attaching the rear cabin wall,I would suggest doing a dry fit with the rear wall and the seat backs. I know there have been several instances where the seat backs come up about 1/2 inch too short. If I recall correctly you should be able to wire things in place before fillets and adjust. I moved my rear cabin wall back some. Enough to have to redrill some holes for the wires.


Yes, indeed! Min seatbacks are about 3/4" shorter than they need to be. If I shorten the deck, I'll have to re-shape the ends of the stringers and cleats. I might be better off leaving a gap at the rear of the seatback and filling it in with some bits of stringer stock.

Re: My Pocketship Build Progress

PostPosted: Tue Mar 30, 2021 12:16 pm
by Bflat
It seems counter-intuitive, but just trimming the bottom edge of the seat-back panels allows them to sit lower until the front or back gap disappears (the panels are essentially a very wide wedge shape with the angles at each end making up the wedge). In a sense it's like trimming the bottom makes them longer in relation to where they end up. There's plenty of excess wood at the top edge of the panel to allow for trimming the bottom edge to get the proper fit. I went through the same thing, and once I realized what was going on it was a simple fix. My build was long enough ago that I don't remember how much I needed to trim, but it wasn't much (maybe a 1/2" or so). I just kept planing a little off the bottom edge and test fitting until it fit.

Re: My Pocketship Build Progress

PostPosted: Tue Mar 30, 2021 12:32 pm
by doug@dougbraun.com
The plans show exactly 24 inches from the bottom rear of the rear cabin wall to the REAR of bulkhead 7 (where it is attached to the rear of the centerboard trunk).

I had positioned my deck pieces with the short crosswise edges exactly aligned with the rear of bulkhead 7, and their front edges are 24 1/2 inches ahead of that.
I also made the stringers extend 24 inches from bulkhead 7 (like the manual says), but this distance should really be measured from the REAR of bulkhead 7.
So trimming 1/2" off the front of the deck and 3/8" off the stringers would get everything matching the plans.

The seatbacks would still be maybe 1/4" shorter than they need to be, but trimming their bottoms would probably fix that.

Doug

Re: My Pocketship Build Progress

PostPosted: Tue Mar 30, 2021 12:55 pm
by Bflat
4AD59829-5C18-487D-BB5E-34D8BCD6675D_1_201_a.jpeg
4AD59829-5C18-487D-BB5E-34D8BCD6675D_1_201_a.jpeg (33.05 KiB) Viewed 258 times


Line B is longer than line A (scroll down on the photo)

But I think you got the point.

Bob

Re: My Pocketship Build Progress

PostPosted: Wed Mar 31, 2021 11:36 am
by doug@dougbraun.com
Nice drawing! Did you just whip that up?

Re: My Pocketship Build Progress

PostPosted: Wed Mar 31, 2021 12:24 pm
by Bflat
doug@dougbraun.com wrote:Nice drawing! Did you just whip that up?

Thanks, yes, it took just a moment with a flexible metal ruler and a pencil.
Bob

Nice looking build, by the way.