Alright, so mine was broken, my friend's one was broken, and he didn't want to buy the metal one... so... i drew one when I'm free.
Also it's not easy to find spare part of these and now you can print it! if it ever gets broken again!
This allows you to re-use all the original screw and linkages.
Beef up everywhere i could, strength wise seems good, have not put it to tough crawl yet.
Remember to come back and post what you've printed as Make.
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