EVA VZ Hybrid printhead - specific for Ender 6, Rapido and CPAP

UPDATE 02/10/23: Included X/Y endstop piece for Widowmaker G1.

UPDATE 19/09/23: Included new files for mounting a Goliath hotend along with the goliath duct and spacers. Also included a new BLTouch mount (it is too short by design, space the sensor out with washers or nuts to reach the desired probe height).

UPDATE 27/06/23: Provided files for 18mm CPAP hose as remixed by Apollo on the Widowmaker Discord - many thanks for the work and testing my guy!
Also now confirmed to work with Rapido UHF. Needs 8mm spacers for the lower duct and the BLTouch needs mounting underneath the mount rather than on top.

I really disliked EVA3 on my Ender 6. Maintenance was a nightmare, it was big, heavy and frustrating.
I much preferred the VZ Printhead, but it is designed for external tensioners which the Ender 6 doesn't have with the gantry mods such as gutter rat or WM Gantry.

This merges the two in a roundabout hacky way. It maintains the look and utility of the VZ printhead but makes concessions for the tensioner situation.

My EVA toolhead (without components such as extruder, fans, hotend etc) including hardware like screws and inserts weighed 180 grams + some screws I misplaced.

This hybrid toolhead with hardware but no components as above (so a direct comparison) weighs 114 grams.

That's a reduction of 66 grams overall!

This is designed pretty much for my printer only, but with some remixes other parts will fit.

Here's the specifics:

Designed around WM Gantry : https://github.com/WidowMaker-3D/G1

Parts I'm using that are specific to this version:
Rapido HF+ (confirmed to work with UHF also, see update above)
BLTouch
CPAP with 15mm hose (from Mellow) (files now added for 18mm hose also, see above)
VZ-Hextrudort (from Mellow)
40mm Noctua fan
FLY-SHT36 v2 (from Mellow)

Now theoretically you should be able to use any of the other supported parts that the VZ printhead supports except the part cooling fan. The rear piece I have designed is meant specifically for CPAP. If you need 5015s or anything else you'll need to remix a part yourself.

Hotends and extruders should work interchangeably providing you use the correct parts from the VZ printhead files.

BLTouch Offset is:
X -23.7
Y -14.4

Files you'll need from the VZ Github:
Extruder Adapter plate (if not using VZ-Hextrudort)
Top plate MGN12H.stl (haven't tested with any other carriages. Don't see why it wouldn't work though…
Heatsink fan duct for your relevant hotend (if not using Rapido)
Appropriate hotend mounting piece
Fan duct (I'm using the Tri-horn CPAP duct)
CPAP Clamp (if using CPAP)
 

BOM (WIP)
M3 Heat Inserts 3x4x5mm * 26
M3 35mm long 5mm OD standoffs * 2 (most are slightly wider than 5mm so you may need to sand them down) 
M3x12mm Countersunk hex head  * 12
M3x8mm Countersunk hex head  * 2
M3x12mm Button head hex  * 4
M3x8mm Button head hex  * 18
M3x6mm Button head hex  * 2 (for BLTouch Mount)
M3 Nut * 2 (for Duct sandwich)
9mm GT2 belt * 5M (uses just over 3M)
M5x40mm Socket Head x2 (for rear tensioners)
M5 Nyloc Nut x2 (for rear tensioners)
*Optional: 5050 WS2812B/SK6812 LED (off a 60/m tape reel is ideal)