Quote:
Originally Posted by 350TSS
This would be impossible to incorporate into my tank pattern as it now sits.
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Not so.
You could make a male version of the recess on your lathe, from a piece of MDF of appropriate thickness.
This would then need to be shaped to the gentle contour of the inside of the mould, where it sits.
It could be highly finished
in vitro as it were. You could then hold it in place on the bolted up mould halves with a couple of small screws from the outside. (don't forget to remove these before release!)
Then apply a small radius of plasticine round the joint.
Plasticine is great stuff for adding radii and fiddly bits inside finished moulds. Composite suppliers sell the stuff cheaply for that purpose. You can also get dumbbells to form radii of different radius
These are usually made in stainless steel and are literally just balls of differing diameter connected in pairs by a rod. They make a good enough finish on soft plasticine to pass on the finished moulding... Maybe with just a quick compounding?
You could still add internal radii on any of your existing moulds this way to aid release.
Just found an image for you and was reminded that these are used for pressing in wax fillets...Wax fillets of different radii are also available from your composite supplier..
Obviously plasticine and wax fillets are one use only and need to be cleaned off and re applied each time the mould is prepared.
