Corners: How do you hold the nut?

First assembly difficulty. I cannot hold the nuts as I tighten the M4 bolts in the corners. There is no room for a socket. This makes it tough to tighten the nylon lock nuts with any force. Jamming a screw driver in the gap isn’t yielding great success.

Any suggestions?

I ended up using needle nose pliers to hold the nuts. IIRC, you don’t need to go gorilla on those nuts, just tight enough that friction keeps the conduit from moving. If you overtighten them, you’ll end up cracking the printed parts.

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Or jam a flat head screw driver next to them.

I created this special allen wrench to tighten nuts on the z-axis. It can actually hold it pretty good while tightening. https://www.thingiverse.com/thing:2502497 I just updated it so you can have an optional straight handle instead of a curved L shaped allen wrench style.

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I know it’s an old post, but I’d say there’s a pretty good chance that somebody else will come along with this problem.

I printed out about 30 of these:

They worked wonderfully.

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Wish I saw this post before I started my build. I was so confused until I thought about needle nose pliers. Got it done quick-fast.

Needle nose pliers or long nose pliers didn’t work well for me.

I solved it like this:

Get a 7mm open ended spanner, heat it on the stove flame, stick the hot spanner into the plastic and let it melt its way in just far enough so you can hold the nut.