Wanhao i3 Thumbwheel alternative

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This is another version of the thumbwheel to replace the m3 wingnut on the Wanhao Duplicator i3 / Cocoon Create / Monoprice Maker Select. It requires 4x m3 nuts to install. The nut recesses are quite tight, i recommend using long nose pliers to press them into place. I also reccommend using this in conjunction with a locknut underneath the heated aluminium to stop the m3 bolt from spinning. I prefer the larger wings, they are easier to turn finely than the more popular round style knurled thumbwheels. Edit: Due to feedback/comments, I have added a smaller version which should clear the printer frame in certain cases where the original size was running into things, although I had no problems with the original size. Edit: For any further changes, you can use this link to make a copy and edit using OnShape:https://cad.onshape.com/documents/be1f228b579d4336988c6cb8/w/5a05657c1cc382bbebb4fab8/e/d1a8e55a81200a8af491cb3b Edit: as requested, I have added 5.25mm and 5.75mm hex holes to allow for different types of m3 nuts and for various printers undersizing/oversizing holes.

About the author:
Evaken
I'm a Husband, an Engineering and Technology Teacher, Tinkerer, Maker. I love engineering my own solutions to problems, upgrading my printers, building new printers, etc. I also run workshops and help sessions for local community looking to get into 3d printing. Get in touch if you'd like some help or just want to chat!

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