Pinewood Derby Car Police Lightbar
thingiverse
This year we wanted to make a pinewood derby car that looked like a Lamborghini Police car (POLIZIA). What's a police car without a lightbar. Built a small circuit using 555 timer chip and 2 Blue LED's. We needed a lighter to make the LED's diffuse and look like a police car. Enjoy. Here is link to 555 circuit we used: http://www.instructables.com/id/Flashing-LED-using-555-Timer/ See the Polizia car in action at 0:34 and 0:51 from the 2015 Pack 75 Derby Go-pro Video https://youtu.be/clfsmrwap_U Instructions Printed with Translucent PLA at 0.2 mm layer height
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