I think it is time to replace the nozzle on my printer, but I see terms like MK6, MK7, MK8 when searching for replacements, sometimes with thread sizes as well. The manual for my printer only lists the extrusion size (standard 0.4mm), but does not list the thread size or length, which seems like it will be needed to make sure a replacement is compatible.
I think that a nozzle labeled as MK10 or MK11 should be appropriate for an i3 Plus style printer, but I dislike picking blindly without understanding what those terms actually mean. Can someone explain what I should look for.
And is the PTFE tubing typically replaced when the nozzle is worn, or does that item not wear with use?