Open Source Outrigger part 2

It's a boat (model)! [continuing on from part 1]

Unfolding a round 3d shape into a flat one is a tricky problem. A flat panel can be bent up into a cylendar or U shape no trouble, which is perfect for the middle of an outrigger canoe, but the ends must taper in gently. to allow the ends to fold in, you must cut out sections from the end of the panels. these cut-out sections are called "darts".

 

but what shape do the darts need to be? I searched the internet, and came close, but no cigar.

but then I figured out how to do it with drafting, geometry, and a bendy piece of wood. it's a little complicated to describe here & now, I might have to make a video.

anyway, the model fit together very well! as well as I had hoped and better than I had expected.

although I did make one mistake, drawing out the inner two tabs on the bow facing the wrong way, but when I realised it, I was able to cut them off and switch them around. hopefully I wont make a mistake like this when do this with the plywood!

more photos:

from bow, in jig

 

from stern, in jig

facing stern, from insidefacing stern, from inside

Being a member of makerspace is getting really useful. Nearly everything I needed was just lieing around!

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