About this 3D model

Learning while having fun Small gear system. straight and helical easy to print and mount. possibility of reducing scale. https://www.youtube.com/watch?v=j3Xrn5yuQ9A&feature=youtu.be it is clear that helical gears work better than rights. much more fluid operation. Learn while having fun! small gear system easy to print possibility of reducing the dimensions. helical gears . A + NOP21