MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
When unscrewing the nozzle better work at the rated T° for the filament ! So with such a plastic wrench, good luck.
BTW, takes 15 min to make a suitable tool like an open wrench, out of a 1.2 - 2 mm steel sheet. Easy to find in an old printer, PC ...