TZB MK3S:MK2.5S/MMU2S Extruder (MMU2S NO TOWER!) V2

This design is now outdated, V3 can be found here https://www.prusaprinters.org/prints/66215-tzb-mk3smk25smmu2s-extruder-mmu2s-no-tower-v3

This is for use with PRUSA i3 MK3S, MK3S:MMU2S & MK2.5S printers.
Designed to be used with TheZeroBeast MK3S:MMU2S Firmware here... "https://github.com/TheZeroBeast/TZB-MMU2S-Firmware/releases"

V2 Changes

• PIN diameter increased for reliability
• Lever arm moved to other side so flag can be printed flat
• More filament path refinement resulting in less flex jamming (no jams in testing so far even with attempted cold flex extrusion) WINNING!
• Added a TopHAT-Normal for those without MMU2S

If you've ever wondered why there's a tower on your MMU2S Extruder and how you're going to open the door to inspect the extruder gears then this is the mod for you.
I also wondered why and redesigned the extruder to do away with the tower.

AMF file with correct orientation attached for easy layout and slicing.

To get started print your parts and prepare for assembly.
Assemble as per the PRUSA manual for MK3S except for the magnets, they need to both be installed backward to reverse the force of the lever.

Install PIN and check it's correct length to trip sensor when door is down and bolted.
This can be done in the Support\Sensors menu with the help of a bit of filament off-cut
"https://youtu.be/zUJUxnWSLZk"

Top HAT is designed for M10 Passthrough Festo fittings, please ask if you'd like one for a different preferred fitting.

Normal top HAT is designed for those without MMU2S/MMU2, just cut a 14mm piece of PTFE tube, add some small chamfers and place between body and top hat when installing.

NOTE: the extruder PTFE needs to be trimmed to 41mm and re-chamfered for this mod, easy to do 👍

Print instructions

Type: PETG
Layer Height: 0.15mm
Supports: No
Infill: 12% gyroid
Perimeters: 3

If printing lever by itself ensure you increase print fan speed max to 100 and slowest speed to 8mm/s in the filament tab of PRUSASlicer.

AMF Bed layout and MK3S gCode slice is attached