I had some craft knife blades lying around and I was missing a handle for a small amount of cutting I needed to do. So I designed this minimalist craft knife handle that allows for a decently good grip.
It’s probably necessary to print this with a few lines of brim (full raft not required), otherwise the tip will cause problems.
After inserting the blade, you can press the two parts together by hand or with pliers. They hold together quite well, but can also be seperated again quite easily.
New Version V2: The blade is much sturdier, but you may have to do a little more cleanup.
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