This is sharpie holder for Bambulab A1 printers. you can mount it to the extruder and put in up to 4 sharpies to color your filament. white and clear filaments work the best.

I have used the nozzle attachement from this maker world model https://makerworld.com/en/models/433753#profileId-338537

Print Settings

Orientation: Print with the wider base downwards. Opposite to shown in pictures It is a good idea to print the adapter and the nozzle connector separately. you can download the nozzle model from the makerworld link provided above.

Rafts: No Supports: No Resolution: 0.2mm

Infill: 10% or above

Notes: Make sure you push the sharpie all the way for best results. The heat causes the colour to change to some extent so you might see different colour eventually Add sharpies of same colour to get brighter colour or mix as you like.