Cardboard box opener

There are 2 sizes to print from. Please beware of the sharp edges. Keep this tool away from children I designed this opener using this utility knife blade from amazon. You can get them from here (note: this is an Amazon affiliate link. I may receive a small commission at no additional cost to you if you make a purchase through this link) Please print with no support. I added a pause in the print profile so you can put the knife in mid run. If you are not using my print profile, please make sure to pause the print at the correct layer.