Coin Tubes for Norwegian Krone (NOK)

Very basic tubes made for Norwegian coins (Krone) with push-fit caps printed in vase mode.

I had a bunch of coins stored in a jar that I wanted to sort and put away in storage and came up with this basic design for quick printing and no threads.

Comes in the following sizes

• 1kr x 100 (100kr)
• 5kr x 100 (500kr)
• 10kr x 100 (1000kr)
• 20kr x 50 (1000kr)

Print settings

• 1 Perimeter
• 0 Top layers
• 3 Bottom layers
• 0.44mm extrusion width
• Vase mode

Filament

• PET(G)

Notes

I printed these with clear PETG at 0.3mm layer height and 20mm/s speed to get it as transparent as possible (caps printed a bit faster) using a 0.4mm nozzle.

The fit is very tight, so a twisting motion is recommended to avoid tearing the cap or tube.

Some foam can be stuck into unfilled tubes to avoid rattle. This seems to work fine for me and it slides out with gentle shaking upside-down by the weight of the coins.

DIY

Want to make your own ? Simply scale the provided models, or add cylinders in your slicer and apply the following dimensions:

These are the tolerances I found the best using the print settings noted above.

I.e. 5mm extra tube spacing (height), 1.6mm extra tube diameter, and additional 0.8mm diameter for the lid.

• 1kr (21x1.7mm)
  • Tube: 22.6x22.6x175mm (100x coins)
  • Lid: 23.4x23.4x20mm
• 5kr (26x2mm)
  • Tube: 27.6x27.6x205mm (100x coins)
  • Lid: 28.4x28.4x20mm
• 10kr (24x2mm)
  • Tube: 25.6x25.6x205mm (100x coins)
  • Lid: 26.4x26.4x20mm
• 20kr (27.5x2.2mm)
  • Tube: 29.1x29.1x115mm (50x coins)
  • Lid 29.9x29.9x20mm