I think This is going to revolutionize the way we get perfect Khuk models to our Kamis. Mold making isnt hard just takes being careful and going through some steps. I think a brief review here and a link to a site with pics will get us started.
Doing a mold for a Khuk will require a simple 2 piece mold. A khuk being a realatively simple flat shape will lend itself compleely to the molding process and will require but little work afterwards.
First I think reviewing this link
http://www.garlic.com/~blufrogg/dolls/mold.htm will clarify a lot of things and help get us started. This guy is teaching how to make molds on doll heads using plaster but the basics are nearly the same although we will be using a polyurethane rubber and a mold release agent.
The best rubber for our purposes can be found here its the clear amber
http://www.clayartcenter.com/synairproducts_1.htm
Our molds will require a parting line done in clay in order to creat the 2 piece mold.
It will also be important to create a box around the Khuk as shown in the doll demo
Also to answer Yvsa's question. the stuff we will cast this in will be safe to file or grind on using a particle mask actually it will require a bit of reshaping to rework the pour cup on the tip of the cast knife back into an actual knife tip. ( I believe the cast piece will be best reproduced by placing the pour cup at the tip of the of the blade as alot of the fancy Khuks may have fancy pommels. although I could be wrong )
This a little bit of a disjointed explanation to mold making but it should get us started. I can field questions as we go
Foxy