Hello everyone
I am complete newbie at molding and casting so I thought it would be a good idéa to get some questions answered before I start casting anything.
Now I have read alot of info and watched tutorials on blogs and on this forum but some things are unclear to me still.
Before I come tto that however I would like to get your opinion on the materials I bought for my casting. I read alot of stff before ordering Mold Star 15 and Smooth Cast 300 along with some ease release 200 and Chavant Clay Soft to place the master in. I hope this stuff will do even though the Mold Star is a pretty soft rubber.
Now to the questions:
After watching this tutorial:
http://www.youtube.com/watch?v=FQ1A7ZjTsx8 I though I could just make a simple mold like that and pour the resin right in from the top however I see that people on here pour the resin in a seperate channel and have the resin fill up from the bottom. Is this really required and if so how come the tutorial made by smooth on doesn't use this approach?
How thick should I make the "walls" of the silicone mold? Will 1 cm be enough? Also can the "walls" separating the different parts in the mold be thinner then the outer walls?
I have loked at some fillers to add to my resin the make it less expensive to cast but I am unsure how this will affect the resin. The two fillers I can get my hands on here is Sweden at a resonable cost is microballoons and something called fillite. Would any of these be appropriate when casting small models or do you think it will thicken the resin too much? What kind of fillers, if any do you use?
*Edit*
I just remembered another thing. Do you have any tips on how to measure the amount of rubber and resin required for any given taks so you don't mix too much. Given the high cost it would be nice to minimize leftover rubber and resin.
Thanks for any help!