Multi-Colour Filament Orientation Coin

Six indexed coins to help orientate your multi-colour filament prints and get the colour change in the right place.

Multi-colour filaments tend to maintain their orientation once a few hundred millimetres have been extruded but they rarely align perfectly with the cardinal points of your printer’s bed, regardless of how well they’re wound.

Simply print an orientation coin, find the angle of colour change (look at it edge on!) and rotate the model in your preferred slicer to achieve the desired colour transition point.

The number on each coin indicates degrees between faces and, as uploaded, the long line is at 6 o’clock/180°, the letter at 12/0° and the short lines at 3 & 9/90&270°. 

I recommend the 15° option for the greatest accuracy but the 30° and 45° are useful where those angles better represent the surfaces of your model. I picked 15° because it makes the maths easy and it’s the rotational increment Cura uses.

Each coin is provided in two versions, with either points or faces aligned to the cardinal points of the print surface, use whichever best suits your print and printer.

I recommend printing with three walls or 100% concentric infill if using a 0.4mm nozzle to give a solid structure.