After countless trials making this with thin balsa strips I was a bit at a loss.
But then I chatted with Dorota from Miniafanaberia about styerene and this got me onto the right track!
I made the shape of the boat with foamboard layers and after thorough google video research about vacuum forming, I gave it a shot because I had a few glossy 2mm styrene sheets anyway (stashed away because I thought I would never use them..).
First I made the vacuum box using a plastic box, made a hole big enough for the vacuum sucker, and closed the box with wood and plenty of wholes in it.
I tried with two kind of frames.
|Sheet tacked onto the frame and sits on TOP of the box: good for small items because there is less styrene waste|
|Sheet is clamped between two frames and is LARGER than the box: good when you need the entire sucking area of the box|
The great thing though: it worked first time!! And this with rather thick 2mm styrene....
|Only with the surf board the first try was not ok because the styrene was not long enough in the oven|
I made three of them because it was so easy 😀. Cut them into three different heights.
|Added 2x1mm rim on top with super glue.|