Aim expansion pack

With this parts you will be able to print and build your own customizable compound bow or cross-bow. This "thing" was designed for the Thinkfun Maker Studio sets to help kids learn more about Archery, projectiles, resistance and also have fun. With this pieces you can also create, customized your other toys from maker studio. You can make it as big or as small as you want you will just need to add or remove pieces from it. On it original size It works perfectly with two rubber bands interlaced.