Core One+ Vent Block for Hinged Top Cover (with MMU3) - Automatic Chamber Ventilation

For use with the hinged version of the Top Cover + MMU3 mod, “blank” version without vent slide:

https://www.printables.com/model/1384284-mmu3-core-one-mod-with-standard-top-cover-foldable

This allows the Automatic Chamber Vent to function with these mods installed, without requiring any modification to the height of the “finger” on the extruder cover.

Prusa recommends printing the original version of this part in PCCF, but due to filament availability, I've used Canadian Filaments Black PETG instead – I confirm that it works fine. Use PCCF if you have it. 

The original printing guidelines from Prusa are as follows:

• Layer height: 0.2 mm
• Infill: 20%
• Infill pattern: Grid
• Brim: Recommended (in my experience, with PETG on a Prusa textured plate, no brim was required)

Extended the “finger” of the Vent Block by 17.5mm; adjusted angle of the finger by 5°.