Moulding and Casting

Updated for the latest Fab Academy * evaluation standards!

• Group assignment
  • Review the safety data sheets for each of your molding and casting materials
  • Make and compare test casts with each of them
  • Compare printing vs milling molds

• Individual assignment
  • Design a 3D mould around the stock and tooling that you'll be using, mill it (rough cut + (at least) three-axis finish cut), and use it to cast parts.

Learning outcomes

• Design appropriate objects within the limitations of 3 axis machining
• Demonstrate workflows used in mould design, construction and casting

Have you?

• Linked to the group assignment page and reflected on your individual page what you have learned
• Reviewed the safety data sheets for each of your molding and casting materials, then made and compared test casts with each of them
• Documented how you designed and created your 3D mold, including machine settings
• Shown how you safely made your mold and cast the parts
• Described problems and how you fixed them
• Included your design files and ‘hero shot’ of the mold and the final object

FAQ

Should I make a mold for the group assignment?

Answer: No, group assignment is for you to get familiar with the materials and the processes.

Should I read the material safety data sheet (MSDS) and technical data sheet (TDS) this week?

Answer: Yes, always. Document the main points you have learned, e.g. safety precautions and any other important information.

I want to only make a negative mold and cast something in it. Is that acceptable?

Answer: Yes, if your part can be accurately cast in negative mold without breaking the mold.

Can I 3D print the mold?

Answer: Yes, you can 3D-print your mold if you can produce a smooth surface finish.

Have feedback? Open an issue!