Use a metal ruler as a straight edge for clean, straight cuts. If you want a perfectly straight cut, grab a metal ruler and line it up along your cutting line. Drag your utility knife along the ruler, or hold the cardboard over the edge of a table and carefully guide your scissor blades along the edge.
What is the best tool to cut cardboard?
Cutting: Knives Utility knives and hobby knives are best, as they have very sharp, replaceable blades. Cardboard dulls edges quickly! Other knives that work well are contractor's knives, for thicker cardboard and scalpels for curves and more intricate work. Both of these types also use disposable blades.
Can you make cardboard hard like wood?
There are a few methods available to accomplish this: Create a shiny surface thorough the application of PVA glue -- basically white "school" glue used in craft projects. Or you can go all out with a coating of fiberglass resin to harden and waterproof cardboard.
How do you cut cardboard perfectly?
https://www.youtube.com/watch?v=6Ztc2fFgIjA
Which cutter is best for cutting cardboard?
Utility knives and hobby knives are best, as they have very sharp, replaceable blades. Cardboard dulls edges quickly! Other knives that work well are contractor's knives, for thicker cardboard and scalpels for curves and more intricate work. Both of these types also use disposable blades.