Tritium keychains duo

thingiverse

These tritium vials require a specific size of 3mm x 22.5mm to fit properly. Ensure that the holes in your printer are at least 3.05mm in diameter, as this should allow for a seamless fit. If your printer's quality isn't up to par, consider using a 3mm drill to create a hole that will accommodate the vials without any issues. Once inserted, apply epoxy or glue on top to seal them securely. To prepare for printing, simply lay the vials flat on the surface of your slicer.