Ikea cup mason jar adapter
thingiverse
This is an adapter for the older style of Ikea kid's cups to put a mason jar lid on top. I'm making it to replace the grind bowl for a Hario coffee grinder. This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/cB83U6ZjxNY The thread for the jar is based on another file I can no longer find to attribute. Sorry...
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