MIT: Independent Activities Period: IAP

IAP 2017 Activities by Sponsor - Xuanlai Fang

Printing with Light: A classroom science project

Nick Fang, Associate Professor of Mechanical Engineering

Enrollment: Limited: Advance sign-up required
Attendance: Participants must attend all sessions
Fee: $50.00 for consumables

This activity demonstrates the basic challenges and opportunities of nanoscale engineering and manufacturing as an outreach effort to high school science teachers and students using digital projector as a fabrication platform.

A regular video projector provides enough UV light to initiate a photochemical reaction by cleaving a molecule to form free radicals when white light is emitted. The free radicals will polymerize a monomer through an addition polymerization reaction. It will polymerize the solution, becoming solid, only where the white light is projected. It will remain an unreacted liquid elsewhere.

Successive layers are made by lowering the polymerized shape into a beaker of the solution. A thin layer of fresh solution flows over the top and light is again projected to solidify portions of the fresh layer. This is repeated, creating a 3 dimensional object layer by layer.

In the past, the proposed activity has led to development of a 3D printing educational module that engaged students and teachers from more than 10 high schools, showcased at the Illinois State Capitol Educational Fair and the St Louis Science Center. Several student projects from the 2.710 and 2.719 courses at MIT are emerging from this objective, and we expect the students and teachers participating in this proposed IAP activities will develop more projects to accessible educational kits.

Contact: Xuanlai Fang, 3-435B, 617 253-2247, NICFANG@MIT.EDU

Hands-on 3D Printing using projectors

Jan/23 Mon 09:00AM-11:30AM 3-434
Jan/24 Tue 09:00AM-11:30AM 3-434
Jan/25 Wed 09:00AM-11:30AM 3-434
Jan/26 Thu 09:00AM-11:30AM 3-434

This activities contains 4 class periods. The first period is for the PowerPoint presentation, and the rest are for designing and ¿printing¿ the three-dimensional objects. 

Nick Fang - Associate Professor of Mechanical Engineering