TampaRC

I have a corsair canopy that has details moulded into it. How could I use it to make a duplicate? Is it possible to do without damaging the original? I am assuming I would have to make some kind of mold , but how ?

Prboz

I am just starting to play with the same things. I have put mine in a box filled with sand to support the canopy and then filled it with plaster of Paris. I am going to let it set for a few days and then I have everything I need to make a vacuum forming machine. heating element and a shop Vac. Plenty of videos on your tube.

My 2C worth

Prboz

Luft-Gangster

I did one using the Plaster of Paris method. Instead of sand, I made a plywood support around the base of the canopy. WAX theinside of the canopy with a good wax as a release agent. I used carnuba wax. I then painted the plug with epoxy paint. I took my plug to a friend who has a vacuum molder. He first formed a thin layer of high density polystyrene over it for a better surface. He then waxed it and made me a copy. He told me he used Durams Rock Hard water puddy in place of the Plaster of Paris with much success. He said its a harder material and easier to work with.

fritzke

My Feedback: (1)

I use the Rock-Hard putty too. Good stuff. The professional casting stuff is nice but somewhat $.
For a one or two off copy job the Rock Hard is good enough. If 20 of your pals want one too,
go with the real stuff.
(eg. EpoxAcast)
Dave

http://www.smooth-on.com/Castable-Ep...295/index.html