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I previously worked on Virtual Reality and other hardware at Valve.  I currently work at Google[x].

Prior to starting at Valve, I built computer peripherals such as keyboards, mice, and joysticks that were designed to be used inside MRI machines.  My company, Mag Design and Engineering, sold these devices directly to researchers at academic institutions who used them to publish scientific papers in peer-reviewed journals.

After work, I spend time on many different types of projects that usually involve circuit design, machining, material selection, and general fabrication/hacking.  My favorite place to be is my home workshop.

ben dot krasnow at gmail




Monday, April 29, 2013

Cookie Machine Project Update 3


  1. It would be cool if you could power the motors through pads on the delrin wheel, connecting through a spring loaded terminal (probably a technical name I couldn't find). That way you wouldn't need to worry about the wires twisting and if it became misaligned, it would just fail to do anything rather than make a mess.

  2. "Slip rings". Sometimes expensive, but I bet the surplus houses have a bunch.

  3. Sparkfun has audio transducers that might be a convenient way to vibrate your flour dispense funnel to get it to deliver the full load. I connected these to soup cans for a project, and they vibrate nicely esp at resonance:https://www.sparkfun.com/products/10917

    A pager motor might do just as well, and is probably cheaper.