Clamp on cupholder
thingiverse
I wanted a really sturdy cup holder that can be clamped on to a table. I've seen commercial versions of the springy kind I remixed and all the reviews are complaints about how they aren't strong enough. I also wanted one that was fully printable and easily printed. So I found a nice small but sturdy clamp and modified the clip on cup holder to work with it. The result is pretty darn sturdy. The clamp is still fully compatible with the original I just shortened the shaft and knob to reduce material. As is it can handle tables 23-33mm thick.
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