My fault! I really Wish I would’ve paid more attention & read somewhere that the only way to calibrate this blade would be on a computer. Unfortunately I only have my iPhone & app so I haven’t been able to find a way to use it! Definitely my fault just stinks cricut has came up with a way to calibrate these tools through the app! It was a huge reason I upgraded to the maker! Although after reading reviews I am a bit worried to use it!! If I ever get it! Until then it’s an ornament on my peg wall!