We had a great evening of physics demos and discussions on Wednesday night.  Thanks to Marty (CHS), Dave (CHS), Caleb (CHS), Josh (PMSA), Kunal (HPHS), Bryan ( GBN), Mark (PHS), Mike (SHS), and Sasha (Northwestern University) for sharing.  The hosts were excited to give away 3D printed models of the “Accurate PVC Launcher”, “Moment of Inertia Spinner”, “Cheap Pulley”, and “Adjustable Frequency PVC Horn”.  All of the designs were built using the free website www.tinkercad.com.

If you have access to your own 3D printer, you can print your own!

Click on the images below for the model files and instructions for printing the “Accurate PVC Launcher”, “Moment of Inertia Spinner”, “Adjustable Frequency PVC Horn”, and the “Cheap Pulley”:

Adjustable Frequency PVC Horn on Thingiverse by David Torpe

Moment of Inertia Spinner on Thingiverse by Chris Bruce

Accurate Ball Launcher PVC on Thingiverse by David Torpe

Cheap Pulley on Thingiverse by Caleb Cochrum

https://www.thingiverse.com/search?q=accurate+pvc+launcher&sa=&dwh=845a0cf491587d2

https://www.thingiverse.com/thing:2647534

https://www.thingiverse.com/thing:2650176

https://www.thingiverse.com/thing:2652281