I really wanted to do something interesting for molding and casting, but my indecision about what to do had its consequences. I spent two days looking for ideas in the internet, when the final inspiration came at looking at a picture of my niece. I bought her a DVD of the Lion King, and she fell in love with lions. So I decided to make a lion mold. It turns out downloading and editing a 3D model is not that easy. I downloaded a STL file and tried to edit it using Rhino3D. It was with frustration that I turned to the coordinator of the FabLab, Anastasia for help. She simply told me, send me the file, which I did. A few minutes later my mesh was ready for mold. I did not have time to do so, because the queue to use either the big CNC machine or the Modela machine was a bit long. I'll have to do my molding and casting as soon as I can. Meanwhile, I'll share the lion model I want to mold.

"Sofía, ¿cómo le hace el león? (Sofía, what's the sound of the lion?)"

UPDATE!

The week along with embedded programming I got to finish the molding and casting of this little lion. Using Rhino, I created a countermold to be milled at the Roland Modela. The preparation for the milling was done using fabmodules, which was pretty straightforward. After the countermold was milled in machinable wax, I cast oomoo 25 to create a flexible mold. The oomoo 25 took around 2 hours to cure. After the flexible mold was ready, I cast smooth-cast 325, which is another casting material from Smooth-On. It took around 15 minutes to cure, after which I had a rigid model of the lion that was so stubborn to begin with.