The high number of 3D-prints I did recently, left their traces on the printer nozzle. Since I have to service the print head, I go for a new hot-end that allows me to swap nozzle tips. This allows me to use different diameters to gain even better printing speed and/or quality.
I can’t use the printer until the service is finished. Until then, most of the 3D-printed parts presented on this site (like the battery dummies or LED rings) are available in limited quantities only.