January 14, 2026
Description
Hello there!
I would like to introduce my "smart" solution to keep the air running in my IKEA Lack enclosure with 140mm Noctua fan (mostly to reduce overall temp inside the box for PLA and PETG) with dual-filter cartridge to keep your lungs safe from any particles.
I used following hardware:
1x Step-down buck converter LM2596 (hooked to MK4S PSU and reduced from 24V to 12V)
You can use box I designed
1x Temp-controlling PWM - https://www.aliexpress.com/item/1005005124930492.html?spm=a2g0o.order_list.order_list_main.45.238f1802GkcOvA
Here you can also use W1209 PWM but it won't let you control it that accurate
Link to box
Noctua 140mm fan
1 piece of each 3D printer part
140mm HEPA filter and 140mm carbon filter for the cartridge
M3x35mm screws to screw the fan assembly together and nuts
Cables, wood screws, ruler, sharp knife
The implementation is pretty straight forward.
Take the measures of the frame and cut the hole to IKEA table from both sides
On the bottom side on table you can either cut a section to hold the electronics or then screw the electronics on the bottom if you don't care about hiding it
Push the top part in, turn it around, place the fan and seal it with bottom part
Tighten the screws with nuts
According the PWM you are using, set required relay ranges (my fan start slowly at 25°C with peak at 40°C)
If you want to use printer PSU connect the PSU to buck converter (reduced to 12V) -> PWM -> FAN
Fill the cartridge with filters and click it in
All done!
I'm sorry if the instructions feel a little unclear, I attached pictures to give you overal idea as I belive it is pretty simple. Regarding electronics, refer to manual from manufacturer you got it as it really differs.
Still, feel free to ask and share your thoughts. It's been a while since I made this but I can physically check it for you.
License:
Creative Commons — Attribution — Noncommercial — Share Alike
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