3D Printed Easter Egg 2017

For Easter 2017 I designed and printed half a dozen Easter Eggs. These eggs were designed to be printed on my new 3D printer with a single extruder. I printed one full egg in six different color and then swapped the layers to create the multi colored eggs. The eggs were then glued together after final assembly using superglue and scrap lengths of filament.

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DC-DC Converter Effeciency

I aquired a car USB charger in need of repair and was inspired by a recent video from the EEVBlog to measure the power efficiency. The device become damaged when the insides flew out during insertion into the 12VDC car jack and the inductor was nearly sheared off the PCB. I was able to reinstall the inductor and slightly modified the circuit for easy measurements and connection to my DC electronic load.

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