Drawing Notebook Maker

Notebook making rules,

I didn't found any cheap drawing notebook with a good textured and heavy paper (180g), so I design those rules to cut and make holes to build my own drawing notebooks, with cheap papers, it's just for sketchs, for final art I recommend use professional drawing blocks like the
ones from Canson.

Cut A4 paper into A5 to make small drawing notebooks,use an sharp and thin knife to cut.
Spiral holes rule, use a 5mm drill to make the holes, and then put the spiral.

To keep the rules tight use some rubber bands, or clamps.