I am always looking for unique stock to mill on my CNC milling machines and routers.
I have been experimenting with polymer clay as a medium. The gear shown on the right was milled out of a 1/4" thick piece of cured polymer clay.
In this project, I will show you how I created the blanks.
What You Will Need
First, lets take a look at what you will need to create the blanks.
Polymer Clay Preparation
Milling the Plolymer Clay
Overall I am very happy with the results. I tried several versions of Sculpey and FIMO clay.
Machines well but is a little too flexible for most gear work. If you need a part with a little give, then this material will fit the bill. It is also the cheapest. Another downside, this clay is only available in two colors.
While this material cures a little harder than the original, it takes more time to condition as it starts out harder. It is also more expensive than the original Sculpey. I don't recommend this one.
This one is available in many colors. Its easy to condition, and it machines well. It cures harder than the original and its cost is about the middle of the road.
This is one of the hardest once cured. It's perfect for mechanical parts. It's a little pricey, but Its worth it if you need to make a gear or similar part.
Sculpey Living Doll
This one is very similar to Super Sculpey.
About the same as Sculpey III
I am going to be be doing some more tests soon, I will post the results as soon as I complete them.