Frames to form the Structure

Now that the first section is complete , we now start making the frames for the next . Jigsaws frames come in three forms , Sheet frames , Bulkhead Frames and Open Solid Timber frames .

This is a Sheet Frame , basically formed from a single 12mm sheet of Plywood with a solid Timber reinforcing structure  made from 25mm thick Kauri  . Strength primarily comes from the plywood , the solid timber stabilises the plywood structure and allows for edge fastening of the longitudinal stringers ( you can't edge screw plywood ) . We use a number of these frames between the first two bulkheads as they also form the sides of Fluid Storage tanks for Sewage , Grey Water , Rain Water and filtered water .

 

 



 

This is a Bulkhead Frame , again it has a solid timber reinforcing structure ( 38mm thick this time) , but  both sides are covered in 18mm Plywood ( one side still to be fitted to this frame ) . These are the primary structual entities in the vessel and link from one hull , across the accommodation levels and back down to the other hull . Jigsaw has five such frames across her width . They also form watertight bulkheads in the hull thus splitting each hull into five  sealed sections . 

 

 

 

 

This is the Open Solid Timber Frame , these get used in the second,third and fourth sections of each Hull , Made from 150 x 38 mm Solid timber these allow for the open storage area's in the hulls . The timber sections are half jointed at the side intersections and will be fitted with plywood reinforcing across the joints ( not yet fitted to this one ) , the bottom intersection is butt jointed with 38mm solid timber on one side and 18mm plywood on the other ( this is also the hull floor level ) . Each Hull has eleven of these frames , Five Bulkhead frames and Five Sheet Frames , ( thats a lot of Frames ! ) .

Better plant some more Tree's .