Create drawing robot with 6 plastic 3D printed parts, 2 micro servo motors, a rubber band and a pencil. So simple! See the design iterations further down the page. It now has 3 axes with 8 parts and can use WaterColorBot's code.
Temperature measured and displayed on a five digit common cathode seven segment display using LM35 and Arduino Uno Read more at : http://www.haberocean.com/2015/08/temperature-measured-on-seven-segment-display-by-lm35-and-arduino-part-1-of-3/