Fan Mod Shell for Meross MSG100 Garage Door Opener

Introduction

Integrates a Sirocco/Jaycar 30mm 5vdc fan into the enclosure of the Meross MSG100.
This mod aims to reduce “device not responding” errors which seemed to occur rather frequently during hot summer afternoons in Australia on my west-facing garage.

Bill of Materials

• 30mm 5V(dc) fan x1
• 4x M2x5mm heat-set inserts
• Superglue or epoxy resin to hold heat-set inserts (in case they fail)
• 4x M2 screws, 8-10mm in length.
• PETG or ABS (PLA may work, but if the issue is heat-related, it may soften and/or deform over time. I'd recommend PLA for any test prints, but PETG for final build.)
• Solder and soldering iron

Instructions

1. Print the new top shell.
2. Prepare your soldering station
3. Gently disassemble the original unit. 
   The two side pieces can be safely removed, however, the middle section has the WiFi antenna stuck to the side of the plastic housing. Take care when removing this antenna, as it is quite fragile.
4. Trim the wires of the fan to approximately 5cm and strip 1-2mm from the ends to expose the inner wire. Tin the ends of the wires
5. Apply a small amount of solder to cover the “GND” and “5V” copper pads. Connect the black and red wires to GND and 5v respectively.
6. Use your soldering iron to insert the M2x5mm heat-set inserts into the fan. Be careful, as the plastic of the fans is quite thin at this small scale, and the heat-set inserts may fail, or the fan shroud could be deformed causing blade impact. 
   If you would rather use nuts to retain the fan, this is likely the safer option.
7. Stick the WiFi antenna to the inside of the new shell.
8. Place the main-board back on the original bottom plate, and close the shell back up. The reset button and LED should align with the holes provided. Try to make sure the new wiring does not interfere with the fan blades while you are closing up the shell. Reuse the original baseplate and screws with the new top shell.