Breezy Box - Smart wall mounted air purifier

Breezy Box: Wall-Mounted Air Purifier for A1 Mini+

Breathe easy with Breezy Box, a compact and efficient DIY air purifier designed for wall-mounted convenience. This project is perfect for anyone looking to improve their indoor air quality, and it's optimized for 3D printing on A1 Mini.

Features:

• Wall-Mounted Design: Frees up valuable floor space and blends seamlessly into your home environment.
• A1 Mini Compatible: Optimized for printing on the Bambu Lab A1 Mini (128 x 128 x 128 mm build volume), but printable on larger printers too.
• Efficient Filtration: Accommodates two 120mm PC fans for powerful air circulation and filtration (fans not included).
• Easy Assembly: Simple construction with clear instructions and minimal hardware.
• Optional addressable LED strip for ambient lighting or a PWM fan hub for precise fan control.

Materials:

• 1.2 kg PLA filament (Sunlu Matte white for me)
• 16 x M5 16mm screws
• 12 x M3 8mm screws
• 2 x 120mm PC fans (I suggest Artic P12 varients for cost efficency)
• 12V 3A power supply
• DC female 2.1*5.5mm barrel jack connector
• 12V to 5V USB step-down converter or SAMIORE DD4012SA 12v → 5v
• ESP32-WROOM-32 board
• 1x Ikea FÖRNUFTIG air filter
• Optional: Addressable LED strip (WS2812B or similar)
• Optional: 1 to 5 PWM fan hub
   

Print Settings:

• 8% adaptive cubic infill
• 5 bottom and top layers
• 2 walls

Assembly:

There are three assemblies:

1. Face plate: Holds the filter inplace
2. Front housing: Air intake
3. Back housing: Air outlet and electronics housing.

Each of these assemblies has 6 parts: A, B, C, D, E & F.

Step 1: Assemble the front, this shound be parts “Front A-F”

Step 2: Assemble the back housing:

1. Screw together parts “Back A” to “Front A”
2. Screw together parts “Back B” to “Front B”
3. Screw together parts “Back E” to “Front E”
4. Screw together parts “Back F” to “Front F”
5. Leaving “Parts Back C & D” for last. Screw these into place to front C and D respectively.

Step 3: Screw the faceplates “Cover A-F” to the “Front A - F”. Note all parts are unique apart from the Cover C & D which are interchangeable.

Step 4: This is more or less what I have done (I'm not the creator of this video):

Resources:

• My code for esphome: https://github.com/phippsy22/breezy-box/blob/main/README.md
• Onshape model: https://cad.onshape.com/documents/55e77fb48b88f72f231104a7/w/4872458c8a01fc11673e7299/e/92d6217f3e9dea51032c20e3?renderMode=0&uiState=6704b1b008682a02aba6b6d0 

My ask to you!

I'm new to the 3d modeling, printing and DIY electronics world, so I would love feedback on how I can improve my design!

Thanks!