This is the Purgeline Paintbrush! It's a fun, quick print which can be neatly stored in amongst a pot of pens or tools, and used to store all of your A1 purgelines/ flow calibration lines. Once full, simply add some glue to the chamber, trim the ends and keep as a nice keepsake of all of your recent prints!

by default it's sized for a standard, small painter and decorator's brush which takes a lot of purgelines, but it's easily scaleable if you want.

I was able to print this happily without supports with PLA+ as any bridge drooping will be hidden by the purgelines anyway.