120mm HEPA Air Filter for IKEA LACK v2 Enclosure

This is a remix of mrflobow's 120mm HEPA filter assembly for the IKEA LACK v2 enclosure.

Made significant adjustments to use HEPA filters for Roomba vacuums as they're easy to source for replacements.  These are the ones that I used on mine but any for these Roomba models should fit https://www.amazon.com/gp/product/B00K7DMEJ0

Slots for a charcoal filter sheet to help cut down on the exhaust smells.  Used a cut to fit 1/8" thick sheet like this one https://www.amazon.com/gp/product/B07PYDT9KR

Cut the hole for the housing into the top and bottom of the IKEA LACK table top. Should be around 125x125mm.  If using the LACK V2 you can place the assembly toward the rear corner to not get in the way of the MMU PTFE tube cut out area and still clear the U-Frame of the enclosure.

Use 4 x M3x9mm or M3x10mm socket head screws and M3 nuts to secure the Fan Housing to the Counter Plate with the Fan Housing Plate sandwiching the LACK table top between.

There are 4 slots for 10x3x2mm Neodymium Block Magnets located in the Fan Housing Plate and the HEPA Filter Housing to secure the two halves of the assembly and prevent rattling when fully assembled.  Depending on printing tolerances the magnets may not be needed.

Use 4 x M3x40mm socket head screws if using handles or M3x30mm socket head screws without handles and M3 nuts to secure the  HEPA Filter Housing, Fan Spacer, 120MM fan, Fan Cover, and Fan Cover Handles together.  The fan will have some play side to side so before tightening completely press each side of the assembly against a flat surface to line everything up.

Use the Carbon Filter Template to cut out two pieces of carbon filter sheet and press them into the slots on the HEPA Filter Housing followed by inserting the HEPA filters.

120MM fan used was the Noctua NF-F12 iPPC-2000 PWM located here https://www.amazon.com/gp/product/B00KFCR5BA

Run the fan cable along side the fan assembly inserting it into the slot on the side down into the enclosure.