A Perfect Number Line(Jig)

After going back to college my first math class had us drawing a lot of number lines/input output tables, so i drew up this little jig to make my work look neater. I printed on my mini delta with .1mm layer height, 50% infill, and .4 wall thickness, i would also disable any z hop if you have it on as the first time i printed with it on problems were caused. Anyway enjoy! it There is a 4mm hole to be clipped into a standard binder also. I will be uploading a similar design for input/output tables