Ender 3 PSU and Raspberry Pi AC PSU case.

Do love the Ender 3 PSU cover by @ckth_171757. Recently I bought the BTT Relay V1.2 module and it gets its operating power from the mains voltage. Due to this, personally wasn't pleased having a high-voltage item within my main electronics case. As I do like to tinker with in the electronics case. 

So I set out to remix the model to be able to both fit the relay in and also a 240v to 5v PSU for powering the Raspberry Pi independently from the main printers PSU. Then I can turn the printer off and on via the Raspberry Pi.

Simply print out this new case and mount the BTT relay at the bottom. Mounting the 240v to 5v PSU. You will need to drill out holes suitable for what ever PSU you purchase. Then use nylon standoffs to mount.  For the lid use M3 screws. 

Can be used with my side mount PSU bracket to move the PSU to the side of the printer. 
https://www.printables.com/model/740999-ender3-side-psu-mount 
 

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IMPORTANT

If using my Side mount bracket to mount the PSU on the side of the printer. You WILL need to create a wire to connect to one of the bolts on the PSU and connect it to your printer. 

THIS WILL MAKE SURE YOUR PRINTER FRAME IS GROUNDED. 

You need to make sure it's also connected to a non-powder-coated part of the frame. See the image for an example. 
 

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Hardware

220v to 5v PSU (6A)
https://s.click.aliexpress.com/e/_DE7fHez  

Nylon Standoffs
https://s.click.aliexpress.com/e/_DCv9AnL 

M3/M4 selection of machine bolts
https://s.click.aliexpress.com/e/_DlM2zrF

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Print Settings

Resolution
0.28

Infill
15%

Supports
Brim

Filament
PETG-ECO