Hi everyone,
today I had an idea how to hotwire the EPS for my next surfboard. I have no planer and no planing skills, therefore I prefer to use templates as much as possible. To try out my idea, I hotwired a scaled model (1:4) of a surfboard, a 6’ surfboard shrinks to around 18" inch. But let the pics tell the story:
small block of xps with the outline template of the scaled surfboard model:
[img_assist|nid=1056540|title=block|desc=|link=none|align=left|width=640|height=394]
I added a template for the deck roll at the nose and the tail side of the block:
[img_assist|nid=1056541|title=deck roll template|desc=|link=none|align=left|width=640|height=480]
Hotwired the deck:
[img_assist|nid=1056542|title=hotwired deck|desc=|link=none|align=left|width=640|height=446]
added the rocker template. This isn’t going to be the bottom contour curve, as it would be to flat. A little rocker has to be added by bending the eps while attaching the wooden skins later.
[img_assist|nid=1056543|title=rocker template|desc=|link=none|align=left|width=640|height=494]
Hotwired bottom and cut outline:
[img_assist|nid=1056544|title=ready cut|desc=|link=none|align=left|width=640|height=484]
As mentioned, during lamination or vacuum-bagging the skins on the eps would need some additional rocker, otherwise the deck contour would be straight, which would at least look a bit strange.
[img_assist|nid=1056545|title=bent|desc=|link=none|align=left|width=640|height=464]
After a minimum of shaping the core should be finished for vacuum-bagging the skins on.
Well, what do you guys think?