Used OpenSCAD to add a label for a PETG only nozzle. Little flecks of PETG that were left on the nozzle were getting into my PLA prints. In some cases, on small prints, the PETG would get into the PLA and would pull them off the build plate. So now I have a dedicated nozzle for PETG.
remix from: https://www.prusaprinters.org/prints/98069-aeberbach-jns-remix-semi-threaded
The author remixed this model.