Trumpet Practice Tool

This is the Trumpet Practice Tool. I have been developing it for a while, and now I have finally been able to make it fully 3D printed! The design is based off the general dimensions of trumpet valves (made to replicate the spacing, the area of contact with the valves, and the travel of the valves themselves), and also nearly perfectly replicates the resistance of a trumpet spring as well. In short, the experience of using this tool is barely distinguishable from a trumpet itself. The design is made to make no noise when used, so that you can use it to practice Trumpet fingerings on the go, in class, or even in bed at night when other are fast sleep. The design is so slim that it can fit in a pocket or small luggage spaces, making it the perfect travel accessory for any trumpet player or aspiring musician (or anyone that enjoys fidget toys). It is a smaller, more compact version than any other alternative on the market, and takes very little to print! The purpose of the removable sprin