For my projects I wanted to have a symmetrical case to mount my often used Waveshare e-Paper 7.5” displays into. I found a lot of cases, but most of them had no symmetrical borders and a lot of them came with screw holes or other holes. So maybe not the cases i wanted to put on my wall or on my desk…
This case has the following features:
“Outside“ part:
Symmetrical borders
The actual real used display area is shown to the user only. The borders and the circuit parts of the display are completely hidden
Small footprint: 199x134x25mm (WxHxD)
No holes shown on the complete outside so that it should look clean on a wall or your desk
Update 22.12.2022: Because of a user request, there is now an optional outside part with 15mm more height to be able to put in more and heigher components.
“Inside“ part:
Slot mount for an ESP32 or ESP8266 with a width of 25mm and a length of ~45mm
Pocket mount for a 10000mAh and a 1000mAh battery as shown in the pictures
Mount for the e-Paper HAT board
No screws needed to mount the parts.
The HAT is locked in place with 4 of the rings as shown in the pictures
Good support for the fragile display from the inside part which covers it almost completely from the back
The display itself is secured in place with the inside part pressed on the posts of the outside part as shown in the pictures
“Lid“ (with holes) part:
In the invisble lid on the back there are 3 holes for wall mounting and a bigger hole to charge the battery or reprogramming the ESP without the need to open the case again.
The lid cannot be seen from the side directly when it is placed on a wall or on a desk
If you use the big 10000mAh battery you might want to use the 2 holes on the outside of the lid to get it straight on the wall. The holes are each 60mm from the center, so 120mm apart from each other
The lid clicks into place with 4 strong locking noses into the case and can be reopened. It is a bit tight but I wanted it to be this way
Lots of space even for a big 10000mAh battery as shown in the pictures. The small 1000mAh battery powers the shown calendar project for about 4-5 months depending on the Wi-Fi signal strength and thanks to the very power efficient Lolin D32, so the case is not opened that often. Using the big battery would multiply this time a lot
“Lid no holes“ part:
In case you do not want to put it on your wall the case can be placed on a desk without any other additional steps as well.
The lid cannot be seen from the side directly when it is placed on a desk
This part is a lid with no holes on the back at all
“Ring” part:
You need 4 of these rings to secure the HAT in place
If you use the .GCode file 4 of them will be printed
Printing instructions:
0.2 speed profile with nozzle set to 215°C and bed to 60°C
5mm brim set on and skirt turned off
No supports needed for all parts
The 4 rings were printed without the brim and with 100% infill
AWSW
