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Menampilkan postingan dari Mei, 2011

Mold-Making Theory: Is It Hard or Is It Soft?

The first step in any mold-making project is to consider what you want your cast item to be used for. Do you want a solid skull as a base for building up a zombie face with clay and maché? Maybe you want a squishy dismembered hand that looks and feels lifelike. You have to consider what you want your casting to be. You will have to build your mold to the casting material you want to use. This is not absolute, but generally you won't be able to make a hard casting and a soft casting from the same mold. There are ways to try to game the system, but they are compromises to quality and/or ease of use. Hard molds make soft castings ∞ Soft molds make hard castings If you want to make a hard, bone-like skull, you will need a soft, flesh-like mold. Inversely, if you want to make a soft, flesh-like hand, you will need to make a hard mold. Why? Friction. Why does friction matter? When you pour casting material into a mold, you are making a  copy of that mold right down to the molecular level...

I can only promise you 2.

Gambar
I am the laziest blogger ever. It's ok because I am just using this free blog as a free webpage. I'm gaming the system. I'm stealing bread from Google's table and I am ok with that. I don't post very often. I don't think of this as a news site, but as a depository. A library of my How-To contributions to home haunting. So let's just get right to it. Last year I promised all kinds of how-tos and I didn't deliver. I changed themes on my haunt and it took way more work than I estimated. I did get up two how-tos but so what? Who cares? So. I am going to be frugal in my promises this year and say I only have two. Two how-tos. They have been filmed. One is 95% done and one needs editing and voiceovers. If I do three I'll feel awesome. The first how-tos are both about mold making. One is pretty elaborate. So much so that instead of making it 20 pages long I am going to preface it with some mold making theory. Watch for these to start rolling out in the next...