Subscribe to Make Magazine Today!

Bike along with Ali Momeni and his fleet of mobile video projectors that transform public spaces into massive sound and light shows. In the Workshop, John Park combines a used treadmill motor and PVC pipe to build a wind generator, and William Gurstelle tests hardware on a giant trebuchet. The Maker Channel features a balloon organ, a ball-fetching autonomous robot, and a lie-detector wristband.

Get the m4v, subscribe in iTunes, watch in HD on Blip

  • Todd

    hi I just discovered Make on my PBS channel, and it’s FANTASTIC!! Just now exploring your website , & I love it!!
    Keep up the great work, everybody!! Thanks!!!

  • jamal

    the video was hard to understand for me. I was wondering if someone can email me the items and their dimentions listed here. ?


  • don

    Love the show!! love the wind generator,very creative!! one suggestion,to get a true and useful output measurement,it should be in watts,not volts.I’m not critisizing,just a suggestion.I’m not able to tell what it would be useable for without a wattage rating.Thanks and keep up the great ideas!!!!,Don

  • BillT

    Say we can’t find a 260VDC treadmill motor but rather a 130VDC, how should we change our plans to accommodate?

  • Daan Vervaeren

    Can you guys please send a link to those plans for the wind generator thingy ! Or are they already on this page , Cos I can’t find them ! I want them because we need to make a Integrated Project to graduate from secondary school, and it needs to be something mechanic an electric ! And I’m am thinking of the mini windgenerator , so PLEASE help me out with this ! thanks in AdvanceĀ 

    Daan VervaerenĀ 



  • tracy

    the treadmill motor flywheel is 19 inches round so what will that be evenly spaced 3 times , thanks for your help

    • Vinnie Dontinelli

      That would be 6 1/3″, but use a protractor and make it 120 degrees between each one.

  • Judd Reese

    I would love to know the tread mill you got the motor from or the model # and mfg of the motor.

  • Vinnie Dontinelli

    What RPM is best for this? I have some DC motors. Treadmill motor I have is 4460 RPM. This seems too fast – would never turn fast enough to produce power. What RPM is optimal??