Website: thingiverse
Author: CodeCreations
Price: Free Download
File format: .Stl 3d printable
Description:
This is a fully parametric parallel line drawing tool you can use in the classroom or at home to quickly and easily draw things that require consistently-spaced parallel lines, including musical staffs, tablature (TAB), guitar chord diagrams, etc, as well as handy things for math like Cartesian coordinate graphs and multiplication