3D Printing History and Evolution

From Industrial Innovation to Everyday Technology Grade 9 Technology - IB MYP 45-minute exploration

Think-Pair-Share: What is 3D Printing?

What do you think 3D printing is? Where have you seen or heard about 3D printing? What objects do you think can be 3D printed?

The Birth of 3D Printing (1980s)

1983: Chuck Hull invents stereolithography (SLA) First patent for 3D printing technology filed Early machines cost over $300,000 Used only in industrial prototyping

3D Printing Timeline: Key Milestones

Key Technologies That Shaped 3D Printing

{"left":"Stereolithography (SLA): Liquid resin + UV light\nFused Deposition Modeling (FDM): Melted plastic filament\nSelective Laser Sintering (SLS): Powder + laser fusion\nDigital Light Processing (DLP): Projector-based curing","right":"Industrial applications: Aerospace, automotive\nConsumer applications: Hobbyists, education\nMedical applications: Prosthetics, implants\nRecent innovations: Metal printing, bioprinting"}

Group Timeline Challenge

Work in groups of 5 students Arrange milestone cards in chronological order Add your facts to the classroom timeline poster Prepare to present 1-2 key discoveries Discuss: Why was each milestone important?

The Future of Manufacturing

"3D printing will make it possible for people to print their own clothes, food, electronics, and even homes." - Industry Expert Prediction

Reflection and Global Impact

How has 3D printing democratized manufacturing? What environmental benefits and concerns exist? How might this technology affect traditional jobs? What ethical considerations should we think about?