Creality Sprite Extruder Pro - Filament Runout Sensor Case for MMU2s
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Filament Runout sensor case for Creality Sprite Extruder Pro to be used with MMU2s
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- Printables
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- Creality Parts & Upgrades
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- Creative Commons — Public Domain
This is a filament runout sensor holder for Creality Sprite Extruder Pro. I designed it to be used with MMU2s. So, my design goal was to keep the trigger as close to the extruder gears as possible to replicate the Prusa MK3S+ design which is triggered when the filament reaches the gears. I've been testing this for a while now and it is running beautifuly.
This is a single part and it requires a color change so that you can insert the Micro switch. For micro switch I used these https://amzn.to/3tXhQex (this is an affiliated link).
I also include the FreeCAD file (which also includes my previous design)…
In my current setup I connected the NO (Normally Open) with the signal channel for convenience when soldering the JST-XH port. So you might need to update your Marlin config and set the FIL_RUNOUT_STATE to HIGH (which is the default) in your Configuration.h, otherwise you need to connect the NC (Normally Closed) if you want to keep the FIL_RUNOUT_STATE as LOW.