Week12 Assignment

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

I use my 3D Elizabeth for mold:

First, print it out with a 3D printer:

Then prepare some materials for mold building:

• PMC-121/30 URETHANE MOLD COMPOUND (PART A)
• PMC-121/30 WET RUBBER MOLD COMPOUND (PART B)
• A plastic cup
• Gloves
• Stir bars
• Goggles

Mix the compounds with a propotion of 1:1:

Stir the compounds fully:

Put my pink 3D Elizabeth into the cup:

And fix the position:

This material will cure overnight(16h) to a flexible 30A dorometer rubber suitable for making molds.

My mold came out!

Next step, use drystone to make another Elizabeth:

Mixed drystone and water with a portion of 47:100:

Then poured into my mold:

And a new gypsum Elizabeth came out:

Ref:

students/346/Week12