Illuminated Crystal

thingiverse

The crystal can be illuminated with an RGB LED. The lipo battery and charge controller are integrated into the base, making it a self-contained unit. It's also possible to power the LED directly from a 5V USB source; however, a 68 Ohm resistor would need to replace the standard 22 Ohm one. The figure is printed without any infill material. Here are my slicer settings for the figure (using Cura): layer height: 0.1mm, wall thickness: 1.2mm (three lines of 0.4mm), top/bottom thickness: 0.8mm, filling: 0%, and combing mode is turned off. The white filament used should be translucent; suitable options include Geeetec or janbex. Printing without infill is only possible if there's no hole at the bottom of the figure. Therefore, after printing, a hole must be drilled into the base. Additional parts required for this project are: * A switch (e.g., https://www.ebay.com/itm/332771007314) * An RGB LED strip (e.g., https://www.ebay.com/itm/282083177174) * A lipo charging module (e.g., https://www.ebay.com/itm/263782499558) * A lipo battery (e.g., https://www.ebay.com/itm/183257989282; smaller capacities like 100mAh are also possible) * A micro USB adapter (e.g., https://www.ebay.com/itm/153515136089) * A 22 Ohm resistor The base should be printed in white so that the LEDs on the charge controller are visible when charging.