NMR Tube Carriers

NMR tubes can be fragile things. They almost never break while you're walking from your lab down to the NMR facility, but when they do, you're going to have a bad day. Near-miss paperwork is not fun.

Not anymore! These carriers enclose your NMR tubes and the infill pattern of a typical slicer will keep them relatively safe from drops. And if they do break, you won't have to get EH&S involved and document why there's bits of broken glass and chloroform vapor in the hallway – everything is nicely contained. Toss it out and print another one.

Four sizes are available, able to contain 1, 3, 7, or 19 NMR tubes at once. A flat spot on the cap prevents the carrier from rolling off a bench if it falls over, and it's a great place to add your name in your slicer. Print a body and a cap (upside down on the build surface) of your preferred size, and that's it. I recommend 10% gyroid infill, two perimeters, 0.2 mm layer height, and no supports. For a neat two-tone look, print the cap and body at the same time and pause once the cap is done to switch filament colors.

I've printed these in both PLA and ASA, but most filaments should work great. Well, except this one. That could be bad.

Created in Fusion 360.

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If you think these models are cool and want to say thanks, consider checking out my website, iOS app, or Android app – they're repackaged, easily-searchable versions of that solvent impurities table every NMR lab has near the computers.