Update on the build.
I have finished putting fillets on the starboard hull as well as the diagonal reinforcements on the hullsides. Sorry no pictures yet. I guess the diagonal reinforcements are employed to prevent oil canning. I also have epoxy coated the insides of the port hull and all the port bulkheads. Last Saturday I bought the balance of plywood and it also included the 18 mm plywood that will be used to do the crossbeams. Yes the Tiki uses plywood web and solid lumber for the crossbeams. No need to worry about exotic aluminum or composite parts for this part of the boat. Almost all parts are made of plywood or lumber. I have cut the web of the crossbeams all of 6 pcs to make 3 crossbeams.
Deckbeams installed on the bulkheads. The bulkheads have also been stitched.
Diagonal bracing for the hullsides. Bunkbearer (1 x 1) installed on the bulkheads where the 5 mm ply bunks will rest.
View of the cramped "accommodations".
Laying out the crossbeams web on 18 mm plywood (15 mm not available). This Santa Clara ply is 7 ply and is 99% void free. Very good material!
A port bulkhead after epoxy coating. this one is being washed with water and soap to remove blush in preparation for sanding of the edges to ensure good bond of the fillets.
I have done the fillets on the starboard hull using epoxy with fumed silica and microballoons as filler. Very nice material for filleting. Fillets were very easy to apply and kept their shape as applied. I'll post pictures maybe tomorrow.
Next step will be to install the bunks composed of 5 fixed panels and 5 removable panels. Don't really cherish this part of the work because this involves cutting and trying cutting and trying to get to conform to the hull shape. the instructions call for laying out the hull shape at this section on the shop floor or plywood to make it easier. Will find out.
To cut the work short I've cut all the beams and diagonal stiffeners and other parts that are quite identical for the two hulls using the starboard parts as pattern. Building a cat requires a little planning to avoid duplication of layout and cutting. this makes the work look slow but at the end will save a lot of time.