Concave & Convex: Chocolate Mold

 
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Think like a designer and get creative with design in class.

The terms concave and convex describe the shape of a surface. The most basic definition is that a surface that bends inward is defined as concave while a surface that bends outward is defined as convex. These forms are critical aspects of manufacturing so parts that are molded can easily be removed from the steel molds used in production.

An understanding of concave and convex forms is extremely important in the design of products or instrumentation that involve lenses and mirrors. This understanding also plays an important role in the mass production of molded products in a wide range of industries such as pharmaceutical, food, consumer, and scientific.

In this project, you are guided through the development of a chocolate candy mold using Autodesk® 123D® Design Through the technical videos, you learn how to use Autodesk® 123D® Design to create a chocolate product. The same process can subsequently be applied for a diverse range of products.

Inspire others and share your chocolate mold design on the Autodesk Digital Steam Workshop.

Project Brief: Concave & Convex - Chocolate Mold

It’s all about the tools and the process!
“Design thinking” linked to this project on concave and convex shapes starts by formulating and answering some key questions:

• What is the purpose of the product?
• Will the concave or convex shapes be used for the purpose of distorting light?
• What are the appropriate materials based on the application of the product and the environmental conditions in which it will be used?
• Will the concave or convex shapes be used for the purpose of molding a physical material such as plastic or chocolate?
• What is the volume and mass of the object to be molded?
• How many parts will be molded simultaneously?
• What temperatures will be needed to heat the material and the mold?
• Will the convex or concave forms of a molded product include surface details such as letters or molded-in logos?
• What is the desired number of parts to be molded?
• Will rapid-prototype molds be used as part of the development cycle?
• What is the proposed budget for production of tooling and the subsequent molding of a product?
• Will the molded product require additional surface coatings or finishing?

Process
An understanding of convex and concave forms can be extremely important in the design of products or instrumentation that involve lenses and mirrors. This understanding also plays an important role in the mass production of molded products in a wide range of industries including pharmaceuticals, food, consumer, scientific, and industrial products. Through the technical videos, students learn how to use Autodesk® 123D® Design to create a chocolate product. The same process can subsequently be applied for a diverse range of products for markets such as those previously noted.

Design considerations used in the example project are as follows:

• Purpose: Development of a convex-shaped chocolate candy to be production molded.
• Target market: All demographic groups.
• Size limitations: Can vary.
• Materials to be used: Dark chocolate for product; silicon for the flexible mold.
• Scheduling requirements: 1–2 hours to complete technical videos.

In this course, you will:

• develop an understanding of 3D modeling and 3D printing using Autodesk 123D Design and a 3D printer.
• explore the concepts of concave and convex and the relationship between lenses and light and mirror and magnification.
• explore a variety of applications for convex and concave lenses and mirrors in science, consumer and industrial
product applications.
• explain the importance of draft in the molding and casting of materials such as plastics, metals, and even chocolate.

Process, Skills, and Knowledge
Upon completing this project, you will have be able to:

• Demonstrate an ability to use Autodesk 123D design to
- create 2D and 3D models,
- assemble components
- alter finishes
- apply commands such as patterns, scale and mirroring of geometry
• Design and make a 3D model using 123D Design and a 3D printer
• Explain the concepts of concave and convex and the relationship between lenses and light and mirror and magnification.
• Explain a variety of applications for convex and concave lenses and mirrors in science, consumer and industrial
product applications.
• Explain the importance of draft in the molding and casting of materials such as plastics, metals, and even chocolate.