Ender 3 External Electronics Case with GX12/GX16/XT60 connectors

This is a remix of a remix. The original file uses GX16 connectors for general wiring, and XT60 for power. The remix uses a DB37 connector (?) for general wiring, and a Auto 6 Pin Power (??) connector for power.

This backplate remix uses GX12, GX16, and GX20 connectors, all chosen carefully to avoid mistakes. Also added text identification in sunk relief near them.

• 4× 4 pins GX12 connectors for each stepper motor (X, Y, Z, and extruder)
• 1× 6 pins GX12 connector for the endstops (X, Y, Z)
• 1× 4 pinx GX16 connector for the fans (overkill, but chosen to avoid confusion with the stepper motors connectors)
• 1× 4 pins GX20 connector for the bed and hotend heaters (the pins of this connector are rated for 10A, a typical 40W heater cartridge on a 24V system like the Ender 5 will draw 1.67A max, so that's overkill for safety reasons)*EDIT (2019-10-07): But the standard 24V bed heater for Ender-3/5 has 220W of maximum power, which gives us ≈ 9.2A of current. Too close the maximum specs of the chosen GX20 connector. The thing has been marked as a WIP and will be altered later to include a XT60 connector for the heater bed and another GX12 for the hotend cartridge heater. Better be safe than sorry.*

All those connectors were sourced from Aliexpress: https://www.aliexpress.com/item/32820896230.html Be careful when wiring the connectors! I didn't add a wiring guide because each system is different, use your common sense when doing that, and check often!

I also added the standard LCD plate for the Ender 3; the LCD plate of the Ender 5 is different, it has a tab that doesn't exist on the Ender 3.

WARNING: I'm releasing the Backplate file some hours after finishing the design, so it is still untested. The LCD plate is tested and should fit.

*UPDATE (2020-10-26):* finally finished the addition of the XT60 connector holder for the backplate. Also added a mounting clamp to allow bolting the connector. Both come from this case: https://www.thingiverse.com/thing:3631413

Print Settings

Printer Brand:

Creality

Printer:

Ender 5

Rafts:

Doesn't Matter

Supports:

Yes

Resolution:

0.2mm - 0.24mm

Infill:

20-60%

How I Designed This

As no-one is adding STEP files for ease of editing, I had to use Windows 10 3D Builder (a surprisingly useful piece of software) to remove the DB cutouts (2 plane cuts to isolate the cutouts, a extrude down to cover them, and a merge to make them one piece again) and Fusion 360 for the rest.

Category: 3D Printer Accessories