The Ultimate Coprint 8-in1 Head Collection

Re-design of my previous printable versions of the 8-in-1 to be an All-in-one unit, combining the run-out sensor with the head to eliminate all unconstrained filament pathway areas.

One unit adds a combined encoder and run-out sensor, the necessary modified body files and the original pieces still needed form the stock MDM files are included here. (All MDM files need be printed. Duplicate files included here from FLY_MDM as needed, other MDM version are modified to fit.) 

Both units require that you drill (2.5mm Drill bit) and tap (M3 tap) a M3 threaded hole in the side of the printhead as shown. This I would recommend (and I have done) even on a stock 8 in one use case as the M10 Heat insert can and will over time get forced out if the nozzle backpressure is too great and remove the 8-in- one with it. The M3x6 screw will lock all the parts together. Don't forget to drill into the printed 8-in-one after install so the screw an go through all 3 parts as shown in the picture.

Needed by all Head designs:
PC4-M6 PTFE Connectors: https://www.aliexpress.us/item/3256804251251282.html

MDM Needed Hardware: 
FLY_MDM hardware: https://a.aliexpress.com/_Eu5JrEA


The other uses the custom run-out sensor that is used in the Stock model heads, but I have combined it into the body so it does not need to be attached via drilled holes and screws. The internal pathway  and sensor position has also been tightened and the sensor only needs a tiny amount of bend on the arm at the roller end if it does not  make contact with the filament on the first testing.

(Transparent ONLY) Rolly Runout-Only 8-in-one / Rolly Runout sensor for BMG Sensor: https://www.aliexpress.us/item/2251832731147963.html 
Note: Pinout for the sensor provided in pictures.

HIGHLY recommend printable BMG case, same hardware and internals; direct swap:  https://www.printables.com/model/43337-bondtech-bmg-style-geared-extruder

Due to the improved filament pathways, the tension on the filament can get so great that ONLY Screw In PTFE connectors are used. I have popped the push fit connectors strait out of the CoPrint CX-I extruders due to nozzle backpressure/insufficiently calibrated rotation distance. The Printable BMG uses the PTFE fittings which make the PTFE tube connection much stronger.

Note: If you have trouble/noise with installation of the replaced feed motors, tighten the front 2 screws to the motor, then slowly tighten in and adjust the rear screw to raise/lower the alignment of the feeding gears to the motor drive gear. If the filament path feels too tight, enlarge with a 2mm drill bit for a smoother feel.