I am having an issue that even with glue the nuts do not stay in the nut traps when I attempt to screw the tool mounts into place. I’m using M5 nuts and cannot think of how to keep them from popping out. Considering drilling the holes through rather than blind so I can push something against the nut while screwing in… kind of at a loss of ideas right now and don’t know what to do.
A really small flat head screwdriver 
should do the trick, just place it in one of the sides of the m5 nut
Have you inserted the 2 strips of 3d printing filament across the backs of each nut to stop them falling out?
Ignore me, you’re making a mpcnc not a LR4, sorry
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I am going to try to do something similar to this but need something much longer than a screw driver to reach through all the z rail to the nut
Also - does anyone else feel like The Nut Trap should be a social gathering (maybe a bar) place for makers?
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I always think about catching my nuts in a zipper… Ouch. Nut trap, what a word…
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Not something I ever worried about until I saw the movie There’s Something About Mary.
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When I assembled mine, I used some hot glue to hold the nuts in place. I put hot glue on the sides of the nut. Then I was able to thread the bolts into the nuts.
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You can also re-print it but scaled down 98-99% and that should take up the gap so they’ll stay in.
I had some trouble with that too and I made a modified one that has little doors on the back side to hold the nuts in place.
Of course the little doors tend to fall out too, but a little tape solves that.
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I made my own nut traps for my Primo to fit exactly into the tubes and fully enclose the nuts. Also easy to pop out of the tubes and replace the nuts if the nylock gets too loose.
Then I lost the STL. I think I did it in FreeCad, but not sure which machine, or what directory I would have saved it in. 
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