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3d Printing Buildings with Andrew McCoy

⏱️ 48:13 🎤 Tyler Campbell, Eddie Campbell, Andrew McCoy
AUDIO EPISODE
3d Printing Buildings with Andrew McCoy
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Chapters

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  • 0:00
    Introduction to 3D Printing
    The hosts introduce Dr. Andrew McCoy and the topic of 3D printing houses, sharing a humorous anecdote about a forgotten coffee cup.
  • 4:47
    Andrew McCoy's Background
    Andrew McCoy introduces himself, detailing his roles at Virginia Tech in housing research and construction, focusing on affordable housing and research application.
  • 5:59
    PACT Program and Affordability
    McCoy explains the PACT program, its goal of using technology to reduce housing costs, and how 3D concrete printing was implemented to create affordable homes.
  • 14:14
    Defining Affordable Housing
    McCoy clarifies how affordability is defined by looking at area median income and categorizing income levels for housing policy.
  • 19:04
    Technology for Housing Demand
    McCoy discusses the projected housing needs in Virginia and how technology, including 3D printing, is crucial to meet demand and promote innovation.
  • 25:31
    3D Printing Process Details
    McCoy dives into the technical aspects of 3D printing, including print speed, mix preparation, and environmental challenges like temperature.
  • 39:01
    Design and Quality Control
    The discussion covers the design process using Revit and Rhino, and how quality control like concrete testing is managed during printing.
  • 46:32
    Printer Availability and Scale
    McCoy talks about the current availability of 3D printers, their manufacturing backlog, and the potential for multi-story printing.
  • 49:22
    Production Rates and Trade Integration
    Insights are shared on the time saved by 3D printing and how other trades, like electricians and plumbers, adapt to the new construction method.
  • 58:02
    Energy Efficiency and Future Outlook
    The episode concludes with a discussion on the energy efficiency of 3D-printed homes and McCoy's message to the construction industry about embracing new technologies.

Speakers

T
Tyler Campbell
Host
E
Eddie Campbell
Host
A
Andrew McCoy
Director of the Virginia Center for Housing Research at Virginia Tech and Associate Director for the Myers Law and School of Construction at Virginia Tech

Key Takeaways

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Embrace new technologies like 3D printing to improve efficiency and address housing shortages; resistance can lead to others innovating for you.

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Investigate specific applications of 3D printing, such as multi-family housing or repetitive spec homes, where its cost and time savings are most pronounced.

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Understand the impact of environmental factors (temperature, wind, humidity) on materials and processes when planning innovative construction projects.

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Utilize digital modeling (Revit, Rhino) extensively for pre-construction planning, troubleshooting, and coordinating trades to minimize on-site issues with new methods.

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Explore alternative material sourcing and preparation, such as super sacks or on-site mixing, when traditional methods like ready-mix concrete are impractical for specialized processes.

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Focus on achieving a dry-in stage quickly with new technologies, as this significantly accelerates the overall construction timeline and allows other trades to begin work sooner.

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Consider the long-term energy efficiency and R-value of innovative wall systems, adapting insulation choices to ensure optimal performance and code compliance.

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