May 4, 2017
Description
Yes, yet another housing for this display !
This box will be used on a public area, so the box hides the sd-card under a lid and has the display connections inside.
The sdcard cover is optional. It is mounted with 2 screws. Without the cover, the Sd-card can be easy removed using the finger slot. The sdcard also does not stick out from the side, so it will protected against knocks.
The 10way connections on the back of the display are fully internal in the box. This is to prevent 'accidental' disconnections. Both the ribbon cables come out through a slot in the back.
The box is designed to be mounted on the top where it is thicker for improved strength.
Al screws are M3. Special part needed are 10 m3x4x4 melt nuts (4mm OD diameter 4mm long). These are heated with a solder iron and pushed in the plastic. Alternative just normal m3 nuts could be used instead the melt nuts. This will likely work but have not tried that out. Just melt them in like the melt nuts.
Melt nut example: https://www.aliexpress.com/item/200PCS-M3-4-4-MM-Copper-inserts-Injection-nut-embedded-parts-copper-knurl-nut/32618397845.htm
Search terms to try: M3x4x4 Copper brass inserts Injection nut embedded knurl nut
Printing: No supports needed. They are built in. You will need to cut out the support from the sd card slot.
Layer height and infill uncritical, I used 0.3mm and 30%
The file "x4_pcb_model.stl" is a model of the display pcb, and should not be printed. Still need to find a way to save the openscad design as a colored step file.
License:
Creative Commons - Attribution - Non-Commercial
wingmaster
