Indoor Sundial

thingiverse

You are free to modify or remove parts if you want to simplify the project.\nA DIY indoor sundial made with an LED-RGB, rotated by a servo-motor as time changes, can be built according to the instructions and list of materials below.\nThe necessary 3D printed parts total one.\nThe project requires Arduino Uno, however, any Arduino model will work but the mounting fit only works on Uno.\nA standard Micro-servo is required which should not be a continuous rotation type.\nThe components also include an RGB LED plus three* resistors with values of 150 Ohm, and two* pushbuttons with their respective two* 10k Ohm resistors.\nIn addition, one transistor and one 220-Ohm resistor are needed.\nThe materials list does not end there - it requires a standard Reflective Collimator whose details can be seen in the build instructions.\nof course you will also need some cables, solder, tape, screws for Arduino, depending on your preferred color for printing.\nAdditionally, some pins for connecting things to the Arduino and an appropriate power source.\nThe 3D printed parts were created using OpenSCAD files which can easily be adjusted according to their dimensions if identical components are hard to find.\nAlso included is a "dome" in the full model stl but it's not essential for this project.\nThe build instructions show only a picture of this "dome."\nIf your desired printer does not print at an optimal level, please refer to the notes on optimizing the design to increase success rate of printing the components. The parts list is below and they are quite numerous, with many different elements involved:\nall 3D printed parts in number one\nArduino Uno in number one; Arduino can work fine too if not for Uno,\nor if any type but standard Micro-servo;\nor three* resistors in values of 150 Ohm which could be used.\npushbutton of type that comes with two*\nin order to match 3x LED; micro servo that should turn without stopping\ntwo* transistor along with their 2*10k ohms;\nalso Reflective Collimator and transistor + resistor that will turn the current in an alternative circuit, when activated - e.g. (220Ohm) value; or its continuous counterpart.\npins of many for plugging various devices in Arduino board\npins with cables are also required, not to mention tape of several pieces and screws; the actual type you might need is still on this very list:\nsome that's only if there are printouts that look yellow due to specific printing materials.