3D Printing, Kids & CAD: Henry makes an “Annoyinator” #3dthursday


Here’s a cool passive sound amplification project for the iPhone from a talented middle schooler, shared by the Cubify blog:

Henry, a middle school student, has a natural talent for design. He has learned CAD this semester and has produced a cool design.

Coming back from Easter Break, Henry brought his latest creation, The Annoyinator.

As Henry explains it, The Annoyinator is designed to amplify the output of an i-Pod and to make that output directional. The core science is the passive amplification available via an acoustic horn (like an old Victrola) coupled some directional capabilities. With some help from his dad, an audio guy, Henry took the dimensions of an i-Pod and started to design.

Henry wanted a device that would:

  • Securely hold the i-Pod
  • Allow access to the controls
  • Provide passive amplification (look ma, no batteries)
  • Allow for directional projection of annoying noise

“The tolerances and clearances in The Annoyinator are excellent. It holds my i-Pod snugly and still allows access to the controls,” Henry said.

The design also works in terms of Henry’s audio goals as it amplifies the small internal speaker in the i-Pod and gives significant directionality to the sounds being played (Henry favors the high-pitched mosquito drone). 

The Irritator is constructed of several pieces and printed on a Cube II printer. The neon orange color allows for easy location of The Irritator in a crowded backpack or desk. 

Read more.


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