EVA 3 Toolhead for Ender 3 V3 KE/SE

REQUIRES A MODERATE DEGREE OF ELECTRONICS KNOWLEDGE AND SKILL AND MAY REQUIRE GOOD KNOWLEDGE OF KLIPPER FIRMWARE INSTALLATION AND CONFIGURATION IF REPLACING CONTROL MCU.

SPEED BENCHY: 

NOTE: This project has been designed with the intention of a complete rebuild and full removal of Creality's Electronics. Bare in mind that project planning will be required for your own wiring and set-up. I have gutted the base of my SE and replaced with Octopus V1.1 MCU and Rasperry Pi running Klipper. Dual Y Axis Motor and Linear rails. This thing now does 50K Accel and  5 Minute Benchy's :D

I will probably update with new versions but for now, this is a fully functional EVA 3 Toolhead Platform that is fully compatible with the Ender 3 V3 KE and SE series providing an MGN12H Linear Rail is installed.

NOTE: For the SE, install a 300mm MGN12H Linear Rail and Carriage using M3 T-Nuts for 1515 Aluminium Extrusion Profile. You can either add washers as spacers to make clearance for the slightly raised plastic you will encounter on the X-Rail profile, or shave down the plastic. Trial and error will lead you to a perfect fit and alignment.

STEP FILES INCLUDED FOR CUSTOMISATION. The Motor Block and Rail have been accurately placed in 3D space specific to the Ender 3 V3 SE and KE for clearance reference.

Also note, the fan duct and CR-touch adapter were redesigned to fit the specific height of the the  Phaetus Dragon UHF Hot-end that I am using.

Required Hardware:

• As above, needs MGN12H Modification to the X-Rail.
• All heat-set inserts are M3X4mm
• Various M3 Screw Lengths

Required Modifications:

• As mentioned above, you will need to plan your project which will include whether you will re-use Creality's electronics, in which case you will need to strip back the ribbon cable and trace wiring back to the MCU Board to figure out your pinouts or as I have done, completely rebuild the electronics using the likes of an Octopus V1.1 or similar control board. You will require extensive electronics knowledge and ability to figure out your pinouts, wiring, and firmware configuration.

Included Files:

Rather than laying out the parts for a print bed, I have simply included the STEP file and Fusion 360 Archive file which includes all hardware so you can use this as a reference or make modifications where you need to. You can deselect hardware and export, then split the file in you slicer as needed.

EVA 3 Compatibility:

• All EVA 3 Hot-end adapters, whether remixed or from EVA Official are still fully supported and swappable
• All probes attachments for EVA 3 remain compatible. Though I have included a modified version for the CR-Touch.
• all EVA 3 Extruder mounts will work, Please ensure that you are using a 25mm pancake motor on your extruder to ensure clearance from the gantry.
• All EVA 3 Shrouds ae fully compatible.

Broken EVA 3 Compatibility:

In some cases, parts, such as the part cooling duct were redesigned to ensure there is rear clearance. It is now side mounted. In this project, the duct is for 22mm CPAP Hose, but you are welcome to adapt and design your own for the likes of 50X15 blowers.

• Part cooling duct, redesigned for placement on the side, EVA 3 bottoms will not fit Ender 3 V3 SE/KE Printers, However, the fitting holes are still present should someone use this for a printer where clearance is good, then the EVA 3 bottoms will still work.

Additional notes:

The Duct and CR-Touch mount were specifically designed around my hot-end (Phaetus Dragon UHF). If you are using a different hot-end and adapter, please bare in mind that you will have to modify or redesign these to fit and sit at the correct height.

An Optional LED Strip mount is included, fix this to the bottom of the X-Rail with 3 X M3 T-Nuts.

This project is no small feat, happy nerding!