Double WaveShare 7.5" e-Paper case - symmetrical borders

Double WaveShare 7.5" e-Paper case - symmetrical borders

I am using my "WaveShare 7.5" e-Paper case - symmetrical borders" for 2 years in several projects now, but some of them just would look better in my eyes if they were in 1 display case instead of 2, because I use them mostly together…

So i decided to create this “Double WaveShare 7.5" e-Paper case which also has symmetrical borders and is based on the 1 display variant, because it made a good job so far. 

Video:

Some improvements are included compared to the previous 1 display model:

• The Waveshare connector is no longer held in place by the 4 press fit rings, because I lost some of them over time. The adapter is now held in place by 4 M3x6 screws.
• The lid is now screwed to the front part to make a permanent connection with M3x10 screws, which makes the case more stable in general.
• The 4 optional “WallDistanceFoots” can be attached from the lid using M3x10 screws.
• On the bottom there are 2 connector holes for a USB-C press in connector to charge the batteries or directly power both ESP32 boards without opening the case or add 2 chargers to the 2 ESP32 boards. See details below. 
• The displays and ESP32 are still separate to use them for different projects in future.
• The lid presses the 2 inside parts additionally towards the front part.
• The lid still has big cutouts to be able to reach the RESET button of the ESP32 boards or to put a programming cable in them without opening the case again.

Parts needed:

• 1x USB power supply 5V / 3A or e.g. the USB-A port from this one (No direct USB-C!)
• 1x USB-A to USB-C cable (5V, 3A) (No direct USB-C!) 
• 1x USB-C port (5V, 3A) (5V/2A will be OK too, but I always use these ones)
• 4x M3x6 screws for the WaveShare connector adapter
• Up to 24x M3x10 screws for the lid and WillDistanceFoots

Wiring: 

• The + and - wire was connected to 2 old Micro-USB cables that were cut with 2 Wago clamps to use the Mikro-USB port of the ESP32 to use the charger of the ESP32:

Printing instructions:

• 0.2 speed profile.
• Use a textured sheet if possible. Together with the Fuzzy Skin option to get a good look. 
• Optional: Fuzzy Skin active for the front part possible.
• Avoid crossing perimeters to get a cleaner print
• No brim needed.
• No supports needed.

Happy printing =)