Loved the idea of a utility blade being inside the opener but only had the standard stanley blade. Redesigned it to take a more standard blade. Also added magnets cause why not?
Use Modify g-code in Cura to pause at layer 6 to add the blade. It is a TIGHT fit. Put glue stick or hairspray on the blade so your filament sticks to it. I added the magnets after the print was done but it might be possible to add them during the print. They are also a tight fit. The magnets are 6mmX1.5mm round.
I used PETG but PLA should work just as well.
The user re-uploaded this model. The user is not the original author of the model.