Threaded Rod Foot
thingiverse
These feet are designed to fit snugly onto a 1/2" threaded rod and nut on my flexible rack, allowing about 3-4mm of adjustment. It's a deliberate tight fit for the rod into the center hole, ensuring it stays securely in place. Initially, I was concerned that the weight might cause these feet to fail, but they seem to be holding up perfectly well so far. This particular print was made using relatively inexpensive PLA from eBay.
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