Simple LEGO Technic Calculator

This model is a Simple LEGO Technic Calculator. It can perform additions, subtractions, and calculate the average of two numbers. Please note that this model is just a proof-of-concept to realise an idea, and that this idea could be extended to create a more comprehensive calculator. This is not a finished model. Larger numbers could be calculated if the gear racks were longer or a different scale was used on the labels. This model was inspired by Alex Allmont's Lego analoge adders (   • LEGO analoge adders, variable gears and in...  ). This model is not an official LEGO set. This model is not for sale. I do not have building instructions for this model. If you have any questions, please leave them in the comments. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this video.