Rapid Prototype Model

NPDBD projects have access to the Department of Mechanical Engineering 3-D printer, otherwise known as a "rapid prototyping machine". The RP machine prints 3-D versions of parts that are modeled in a CAD package such as Pro/ENGINEER or SolidWorks. Parts are created in ABS plastic. "Rapid" is relative. Parts take 2 to 8 hours to build depending on volume. While the build volume for the RP machine is about 12x12x14 inches, reasonable parts are in the 6x4x4 inch or smaller range. Larger parts can take many (e.g. more than 24) hours to build and consume considerable material.

The purpose of this deliverable is to have each team build a 3-D part to understand the capabilities of the RP machine, and the process to create parts. In years past, too few teams took advantage of this incredible resource. By forcing each team to create a part early in the course, we should see more RP parts as part of the prototyping process as the project proceeds. Teams are free to use the RP machine at any time during the year.

The deliverable: Bring to class on the due date an RP part that has a volume of 6x4x4 inches or smaller (but not too small). The part should be related in some way to the project. Your part will be displayed for the whole class to see. Model the part in Pro/ENGINEER (preferred) or SolidWorks or your favorite CAD package and export as a STL file. Email the STL file to the RP machine manager (see below) and arrange the build time and part pickup time with the manager. The team is responsible for post-processing the part which means chipping away support material and/or dissolving support material in the wash bath.

Scheduling: The part build time can be 2 or 3 hours or might be overnight. The post-processing support bath might take 2-4 hours. The machine might have a parts queue that is a day long. The RP manager might not be available immediately to run your part. Message: Plan accordingly so that you are successful with this deliverable.

The RP machine manager is the TA for course ME4054. Name and email can be found on the ME4054 web site