How do you cut a millimetre thickness cardboard into 45 degrees?
You put more than 1 centimeters and 2 centimeters in thickness, so you can't cut the lines on the sides. You imagine it's not a paper, a book, a side line, a knife, make sure that every piece of paper is cut 45 degrees, the cardboard is not a simple pot.
In half, then cut with a knife quickly in the creases, the incision is 45 degrees.
You put more than 1 centimeters and 2 centimeters in thickness, so you can't cut the lines on the sides. You imagine it's not a paper, a book, a side line, a knife, make sure that every piece of paper is cut 45 degrees, the cardboard is not a simple pot.
