LEGO 9686 Machine&Mechnism - 23. Horizontal Balance

Horizontal balance made with LEGO 9686 Machine&Mechnism. I made it in the form of a two-legged scales, but it was difficult to accurately weigh whether it produced some friction on the pin side of the connection. It was good to have a rubber band on both sides to match the standard, but when there was nothing, it was good to be horizontal, but it is hard to measure a light object. I do not know if there is a scale that uses such a method. I just made it as I thought, but now that I think about it, I do not know if it’s a good idea to use rubber bands.