Mobius M4 Improved with Filament Sensors

Here are the improvements added to this design:

• NEW DUAL Built-in runout filament sensor switch
• Improved stiffness in the midsection of the extruder to avoid flexing
• Additional ECAS04 for filament intake  (read the description to understand why)
• Improved filament path that allows filament to be picked up without having to open the latch
• Improved gear distances with the addition of internal spacers
• Quieter operation than the original rattling gears
• Improved tolerances to better grip FR bearings
• Pulley and drive gear are reversible as to allow for fast filament moves (loading and offloading of a dual MMU system)
• All parts are registered against one another with alignment registrations for the main body of the design as to align precisely before screwing the parts together
• New geometry of the latch and the guilder allows to open the guilder (and be retained in the fully open position) completely without having undo the thumbscrew
• Two version of the guilders use MR85 smooth bearings as to avoid issue #6-related problems
• Three versions of the guilders are provided, included the original BMG idlers, one version for a short pin + MR85, and one long pin + MR85.
• Improved printing and shoulder for screws tightening NEMA 17 motor
• Spacer is provided (which can be increased in size) to fit the side of a Trident or V2.4 with panels to the 2020 extrusion.
• Pulley width is reduced to better fit a 6mm belt.