
My Olfa cutter cuts scallops. Why?
I've changed the blade twice and every time it cuts a very slight scallop and not a straight line. Any insight?
EDIT- every suggestion was excellent and you know what yes, I did have fresh blade and it's only one blade, but I realized that I was kind of in a hurry and my blade is against the ruler but at a slight angle and I went back and carefully cut again, making sure the blade was at a 90° angle to the surface and it worked great. Thank you guys for all the suggestions and I'm just gonna be more careful now.