Velleman K8200 3D printer - LED ring light
thingiverse
This time I have added a light around the extruder. I bought a tent light - it contains 2 rings with white 5mm LEDs. I have created a circular holder for the rings, 2 holding arms and I've reused my previously designed clips (http://www.thingiverse.com/thing:221362). For the PWM driver I used Atmega328P microcontroller with an Arduino bootloader. I have soldered it on a single layer protoboard with designed base that can be mounted on the mainboard mount (http://www.thingiverse.com/thing:230616). More details, the source code, schematic, part list can be found on my blog: http://ljwinkler.blogspot.com/2014/02/led-ring-light-for-velleman-k8200-3d.html Cheers, LJ
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