The file 'Parallel Line Drawer For Expo Markers. 3D Printer Model' is (stl) file type, size is 24.4KB.
So I modeled this off the traditional "Chalk holder" you all remember from elementary school that your teach used to draw a music staff or your math teacher used one to create Cartesian plane on the board. Works well with your standard Expo dry erase markers. Makes for a great tool for a Music or Math teacher. Enjoy!
marker_holder.stl | 104.2KB |