NMR Tube Holder

NMR tube holder / transport container / secondary container. Holds 29 NMR tubes (5 mm diameter x 7 inch long) with plastic caps. Also accommodates various other types of 5 mm tubes (J. Young tubes, high-pressure, valved tubes, as well as tubes with spinners and shuttles.

(designed using inches)
If prinitng in Prusa MK4S printers, these general settings get the best quality for the numbers on the top and for body/cap fitment.
Layer height 0.2 mm
Perimeter/walls 3
Infill density 3% with Gyroid pattern
No support or brim