NexGen3D: K1 Max Internal Air Filter

Please Note: Fans should be installed to pull air through the filter and exhaust out towards the plexi side panel, this gives you the max performance of both the fans and the filter, and will stop crap from building up on the fans.

I just picked up the new K1 Max (K1C Max) and Im not a fan of the exhaust filter system it has, as I print a lot of ABS, PC and Nylon with carbon and glass fibre, so I decided to throw together a large format internal filter system.

This one uses 2 x 140mm fans, I've used some 12v Noctua Industrial PPC fans and a LM2596S using my case found here

This just fits in down the side, it will fit under the aux cooling fam, but I removed that as I have no need for it, and I used that fan connector to run my filter, you can however power the the filter from the exhaust fan connector if you wish to keep your aux fan.

Filter medium can be 2 x 5mm or 1 x 10mm activated carbon sheeting, 280mm x 150mm.

All you will need is 2 x M3 8mm to 10mm SHS or BHS and 2 x Threaded inserts, and some VHT tape to stick it down.

Once put in place, you willl have around 3mm gap from it, and the bed, and at full speed, will filter a massive amount of air volume, the filter also helps to keep the air temp even inside the enclosure.

If you have a jail broken machine, you add the following to your START_PRINT macro: 

SET_PIN PIN=fan2 VALUE=255.00

And in your END_PRINT macro:

SET_PIN PIN=fan2 VALUE=0.00

This will turn the Aux fan output to 100% while printing asnd then shut it off once the print has finished, no need to scrub the air afterwards as this filter works so good, it keeps the air clean in real time, other smaller filters need to run for a period after the print has finished to be effective.

If your looking for a good value high performance 140mm fan, then I highly recommend the Artic P14 Max these are nearly as good as the Noctua fans, but are way cheaper and have awesome build quality, Im using the 120mmm versions in my K1C.

Keep an eye on my uploads as I will be designing a compact chamber heater to go on the left side of the printer as I'm struggling to get the chamber above 50C even after hours of printing high temp material.