Printrbot Play Shield with with view for filament.

This is to help to prevent jamming while trying to figure out the best settings for flexibles on the Alu V2. It prevents jamming by allowing you to view the filament while you are tuning your print settings, pausing or quitting the print before it jams severely allowing you to recover and immediately resume printing after adjusting your settings (generally just slowing it down). Otherwise you may need to take off the shield and fix, then reattach the shield, which is just a waste of time.

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