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View Full Version : An home metal casters ? This could be useful for patternmaking .



PeterSibley
04-22-2017, 12:19 AM
http://www.chonday.com/Videos/protoputymake4

A very good idea, a good substitute for castable silicon, castable silicon is expensive stuff I've used to make complicated cores. This home made version would be very cheap!

upchurchmr
04-22-2017, 01:09 AM
Interesting, what would you make on a boat?
I suspect any filler would do. How about microballons to make it lighter.
I was just using wet suit material for a seal on a gasket. This might be a lot heavier and I wonder if it can be bonded after curing. Perhaps molding a labyrinth seal could make a better seal than flat material.

George Ray
04-22-2017, 08:03 AM
Looks wonderful/economical . . . . . ? wonder how it compares to commercially available molding compounds ?
thanks for posting this !

amish rob
04-22-2017, 09:52 AM
Did you see his video on casting aluminum using foam?

Pretty cool. His little foundry is cool, too.

Peace,
Robert

PeterSibley
04-23-2017, 12:38 AM
Looks wonderful/economical . . . . . ? wonder how it compares to commercially available molding compounds ?
thanks for posting this !

I suspect the main difference is that it would be cheap. I've used commercial mould making silicon and it's brilliant stuff.... but very expensive. How well this cheap substitute will work? Only a trial will tell.

Here's a use I made of the commercial version, a pattern to cast an "outside core " for a toothed wheel.

http://i1062.photobucket.com/albums/t487/PeteronTweed/dscf1697.jpg (http://s1062.photobucket.com/user/PeteronTweed/media/dscf1697.jpg.html)


http://i1062.photobucket.com/albums/t487/PeteronTweed/dscf1698_1.jpg (http://s1062.photobucket.com/user/PeteronTweed/media/dscf1698_1.jpg.html)

and the resulting core.

http://i1062.photobucket.com/albums/t487/PeteronTweed/dscf1702_1.jpg (http://s1062.photobucket.com/user/PeteronTweed/media/dscf1702_1.jpg.html)