Continues from Joe Blow (Part 3 – Ball-Socket Armature)
Armature is done and I am going to make the body parts.
As usual, I will be using the stuff we sell at Morezmore (www.morezmore.com).
I am using delrin ball 7mm, with drilled holes – to make them rotate inside the head.
I described how to drill the holes in tiny balls earlier in Delrin Eye Balls for Stop Motion Puppets.
The method works great from small balls, but for larger balls I needed something else.
The research brought this little gizmo. I bought one to try, liked it very much and added it to Morezmore inventory.
M00638 MOREZMORE Mini Eye Drilling Vise Jewelry Pearl Bead Hole Drill Vice
Expression Face Plates.
What I wanted to make: a head (rather half of it), with magnets, which accepts replaceable face plates, all of the parts made out of polymer clay. The plan was to make a neutral default face, make a push mold and keep making plates, changing the expression while the clay is still unbaked, then bake the face plate.
I started taking photos of the mold process, but the first attempt (and the second and the third and the forth, total 7) was unsuccessful, I got frustrated and stopped making photos. When I finally got what I wanted, I realized I do not have a set of photos to show how I made that mold.
Basically, it is a 2 part plaster mold which forms a hard shell, inside which there is a silicone core. I will make it again – on another puppet, perhaps, and post about it later. You will see that mold on the photos below. The silicone core purpose – silicone push molds are easier to get the face clay impression out, but they don’t hold the outer shape very well, unless you pour a lot. I wanted the mold to be hard on the outside and soft inside.
Although it took me 3 weeks, I did figure it out.
Here is the first plate:
Here is the trick to make that neat seam that took me 3 weeks to figure out.
First make a blank piece (let’s call it sliver) to fit snugly onto the head, bake it and then build the face on top of that sliver
Trace the seam with something sharp, like this half-round micro spatula for easy removal after baking otherwise it will fuse together and the edges might break off.
Here is my push mold that I was talking about above.
Paint with translucent liquid sculpey to make the raw clay adhere to baked clay.
Make the clay a little softer and more pliable by adding Sculpey smoothing polymer oil and mixing the clay well.
The method is promising and I am going to try to refine it.
Continues on Part 5
To be continued…