hey
im shaping some new moulds next months and thinking about to switch from prebent, 99% fitting-in-the-mould cassettes, to flat cassettes. till now im using stainless steel and aluminium cassettes, alu 2mm, steel 1mm. all pre-bent fitting the moulds almost exactly.
i do full-length woodcores (3mm tip/tail thickness) with 12mm abs spacers in tip/tail area, laying up in prebent cassettes is a nightmare as you could imagine.
what cassette material and thickness do you recommend for laying up flat?
i heard from ski grace that they re using 3/16 aluminium, trusting my conversion table this is something like 4,6mm...they have ribmoulds so i guess the thickness is required to prevent from waves in the bases. pretty thick piece of metal anyway. i doubt if the bladders of my press would push that sandwich proberly in tip/tail sections, or upgrading my press with some pneumatic rams is necessary!?
i still dont know what my next moulds would look like, massive mdf or ribs, one requirement, the moulds must be adjustable, ribs of course need thicker cassettes...
what is a good material thickness for massive moulds and what is minimum thickness for rib moulds?
flat layup - material and cassette sizes
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