Working with liquid acrylic?

Question

i want to make a model of a computer mouse, just like the original

my idea is making a mold of foam and using liquid acrylic in the mold

any ideas on what kind of foam i should use to make the mold, and how to work with the acrylic?

i have the project, but no idea on how to start :(

Answer 1

It really depends on how much you want to spend on the project and the final use of the casting. In any case, I would avoid the use foam as a molding material. If you are only going to use the mold once, you might consider alginate (available from most hobby and craft stores for “life casting”) as it is fairly inexpensive. If you want to make many copies, consider silicone (see link). Acrylic and be hard to work with and can give you inconsistent results in poorly controlled work environments. You can also use candle wax or casting resin. You can find candle wax at hobby stores and casting resin at many model shops or at the link below (the site also contains some good instructions). Good luck!

Site: http://www.moldmakingsilicone.com