My new favourite 3D printer bed leveling method

Should I heat the extruder when bed leveling, or leave it cold?

 

If hot, how do I deal with oozing filament?

This is my new method which addresses these issues.

3D Printing: time to replace the nozzle?

During the last 7 or 8 days, something bad has happened.

 

My 3D printer has been producing rubbish.

Something rather unexpected seems to have solved my problem.