Nut trap for mpcnc, 25 mm pipes, M4 nyloc nuts

Nut trap for 25 mm ("European") mpcnc builds, using M4 NYLOC nuts.

Tight fit for the nuts (intentional), use a hot air gun to soften things up a bit if necessary, and a longer bolt to pull the nut in place.

As usual, works for me, no guarantees :-)

Print flat side down!