Pie Shaped Yarn Cutter Keychain
thingiverse
A keychain yarn cutter shaped like a pie is quite the unique swag for any knitting enthusiast. I designed these custom cutters specifically for a Pi Day knitting retreat, where math and yarn collide in perfect harmony. They're precision-crafted to work seamlessly with a standard 28mm rotary cutter blade, easily found at most quilting or craft stores. To assemble this clever gadget, simply place the blade onto the post of the bottom piece, add a small amount of glue to the hole on top, and snap the two pieces together. As you do so, be sure to align the yarn notch perfectly for optimal cutting performance.
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