molding and casting. composites
emmotllament i colada. compostos

assignment
design a 3D mold, machine it, and cast parts from it.

molding and casting
I have done a one part mold for casting chocolate. The mold has a wood "insert", a thin stick that permits to do a lollypop.

The model has been done with Rhino 4.0 and exported as a STL file to mill it. I used the fabmodules, first with a 1/8 rough drill and after with a 1/32 finish mill because the definition of the letters. I had to reset the default parameters of the tool. I changed the diameter to 0.79 mm. (the 1/32 inches equivalence in mm.).
I had problems with the width of the mold, one of the walls stayed open and I had to close with a piece of methacrylate.

After casting the liquid silicone (mixing the two components) has waited a minimum of 24 hours. It has been demolded the silicone mold for casting liquid chocolate and it has waited until cooled down to take the lollipop. This is the result.

 

01.the chocolate lollypop

02. the molding proces



re-using wax
We have proven to reuse the wax shavings from the milling. After heating the wax, we put the liquid wax inside a methacrylate mold and allowed to cool.

03.reusing the wax produced milling the molds

folding mold
I tried o do another kind of molding using plastic board and graving a geometric pattern in it. After wrapping it in the way we want you can cast any piece and any material. I have no tried yet...

04.mold using a graved plastic board