<p>I bought the ACME leadscrew upgrade from Printrbot.com for my Printrbot Plus v2, but the ACME nut is too large to sit inside the prior nut's holder. So I measured it and printed a nut trap that fits just under the old place and uses the notches in the wood to keep it from turning. Not sure if anybody will find this useful, but here it is anyway.</p>
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