Showing posts with label deck. Show all posts
Showing posts with label deck. Show all posts

Thursday, November 3, 2011

Dynel on deck

As promised, here are a couple of photos of the decks covered in Dynel (glued on with epoxy):

I'm gluing on the Dynel in four pieces, here I'm cutting out the port-side deck piece.  

All the pieces on the boat...but not trimmed as yet.
Corner before trimming...

Corner after trimming, hey that looks better.  The Dynel cloth--which is soft and bends easily--wraps around the the edge of the 1/4" ply deck.
The completed job.

Forward view.  Note that the rubrails will cover the screw holes along the top of the sheerstrake.  With the toerail to go on soon, I'll finally be able to trim down that stem, which I've left rough-cut for months.  That'll be a good day...
With the deck completed, hurrah, it's on to rubrails.  More on that later.  Plus I'm thinking of adding a little trim piece to the bottom of the sheerstrake.  No structural function, just for looks.  Plus there will be a small toerail on the foredeck.  Once that's done, the exterior hull will be complete, with interior work like seats, floorboards, etc. to go.  Plus gobs of finish work--and spars--of course!  So, until next time, it's goodnight from him.

Friday, October 28, 2011

Finishing off the deck

This week I finished off the deck, so here's a few photos of how it all came together.


This shot shows the various blocking pieces cut and fit.  These are made of scrap 1/4" ply left over from planking/decking, and they add strength to various key parts of the boat.  For example, the foredeck will support a mooring cleat and, of course, there will be a hole through the deck for the mast, so there's a fair amount of blocking in that area.


With the blocking done, I finished rough-cutting the various 1/4" ply deck pieces.  Here are all the pieces drilled for screws (little #6x3/4") and ready for glue up.
This is called a "jump stick".  It lets you "jump" over something to mark on the other side. In this case, I'm marking the inside edge of the plywood deck where it meets the carlin.

The shrouds will be attached using these 1/8"-thick bronze tangs which stick up through the deck.  Two bronze machine screws go through the clamps and, for good measure, the tangs are bent around and under the clamps. This transmits the load coming from the shroud directly to the clamp which is securely glued/screwed to the hull and decking.

Here are the four tangs, ready for installation.  Why not two, you ask, since there's only one pair of shrouds?  Well, for fun I'm going to have two "settings" for the shrouds:  a "single handing" setting using tangs along the sheer about one foot aft of the mast and a "racing" setting where the tangs are about four feet behind the mast.  The shrouds, which will be made of wire with rope tails or possibly a modern low-stretch rope like Spectra, will terminate at a cleat on the coamings (not at a conventional turnbuckle) so I suppose these would technically be called running backstays.  When in the "racing" setting, the shrouds will provide extra support to the top of the mast but also require resetting for each tack.  The "single handing" setting should provide more-than-adequate support and, importantly, won't require resetting when tacking.  In either case, the windward shroud can be slacked off if necessary while running.  Note that this feature is NOT shown on the Sail Plan at my Sketches and Plans page...which I'll update after the boat is done.

OK I'm finally ready to glue in the deck pieces!  I started with the forward triangular piece.  I broke the deck here so that I could reach forward under the deck to clean up any glue mess.  The deck is screwed down about every 18" with addition small ring nails as needed...but, as usual with this type of construction, the glue is doing most of the work. 

Here's the rest of the deck getting glued in place.  I'll put some epoxy putty in the various screw holes and dings and sand it smooth for the Dynel later on.

Well that's it for now.  Next time I'll have some photos of the Dynel going on the deck...plus the start of the spars.   I figure it's about time to start on those since they will need multiple coats of varnish and I don't want that to hold up the launch spars.  Plus it's a fun thing to do, so I don't mind getting started...  

Wednesday, October 12, 2011

Foredeck and side decks


I think I've cut up my last sheets of plywood for this project!  Two final sheets of 1/4" occume were consumed in making the top of the deck, with nice chunks left over to make things like locker fronts later on.  So here goes:


Here I'm test-fitting the small triangle of deck at the bow.  The edge where it butts to the next piece of deck is backed by an additional layer of 1/4" ply underneath.   I've let this into the deckbeams and inwales using a router bit to cut a 1/8" rabbet.


With the foredeck coming along, I made up the side deck support knees from 3/4" Douglas fir.  I could have made them from scrap 3/8" ply and filleted them in place, but I had some nice clear fir on hand and personally prefer the look of it.  These knees will support the side deck and coaming, and tie them into and provide support for the top two planks.
Here's the carlin being glued/screwed to the knees and bulkhead.  The coamings will be screwed to the inside of this carlin and come to a point on the foredeck about 18" forward of the bulkhead. Note that the carlin slants back about 10 degrees for more comfortable seating.
Here's a close up of the last "bay" between the carlin and the inwale, just forward of the transom.  You can just see the 1/8" rabbet routed along the edges.

A backing of 1/4" ply fits into the rabbet shown in the last photo.  It provides extra support for this corner of the boat and a good place for a stern mooring cleat. Basically it replaces a conventional quarter knee.  A similar backing block will also be made everywhere that the plywood deck pieces butt together. 

With the various deck pieces rough-cut, I  layed them out on the boat...just to take a look!  In my mind's eye I can see the coamings coming to a point forward of the bulkhead.  BELLE is really starting to come together.  Next step:  marking all  the carlins, deck beams, and knees underneath the deck pieces, flipping them over, and drilling for the various fastenings (a mix of #6 screws and nails) which, along with the inevitable glue, will hold the deck in place.  Once I've got every last piece cut and temporarily screwed to the boat, I'll take it all apart, label everything in sight, and start painting the undersides.  At that point, I'll get to start on the spars, hurrah!