U-clamp for securing printrbot.
thingiverse
To secure the Printtrbot threaded rod, a U-clamp attaches it to a base; I opted for a $5 bamboo cutting board. This setup is detailed on nerdipedia.com/tiki-index.php?page=printrbot+mods. My clamps are 3D printed and tested, with M3 screws used without tapping (though tapping would be beneficial). Drilling holes for nuts may work, albeit difficult to reach in certain spots. Two clamps sufficed in my experience.
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