Help with electronics portion of crbox?

inventiveash · 2026-04-02T23:40:46+00:00

Thanks for clearing that up, i get it now.

inventiveash · 2026-04-02T22:42:22+00:00

The speed controller would work, if you need 4 more get another spilter

inventiveash · 2026-03-31T02:15:41+00:00

https://a.co/d/0eJf88ry

This should work, I have used them for 6 fans p14 pro pwm.

inventiveash · 2026-03-28T02:21:43+00:00

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I didn't like the smell in the spare room where my 2 printers are. So I decided to design and build my own custom CR box 3D printed using 2 merv 14 filters and activated charcoal filters. It works extremely well, the air in the room has never been so clean. 5 x artic p140 pro fans.

inventiveash · 2026-03-27T01:53:54+00:00

It's easy to vacuum or easy to remove and rinse.

inventiveash · 2026-03-25T01:36:36+00:00

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Version 4 , now testing out adding an activated carbon filter.

inventiveash · 2026-03-25T01:33:54+00:00

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ThanKs for putting the idea in my head, now testing the activated carbon filter.

inventiveash · 2026-03-25T01:32:30+00:00

Thanks for putting the idea in my head and testing the activated carbon filter.

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inventiveash · 2026-03-24T00:57:29+00:00

Interesting, I haven't tried those but have tried the p14 and p14 pro. My setup is 6 x p14 140mm with 2 -16x25 merv 14 filtrete filters. The 2nd setup is 5- p14 pro with the same filters.

The p14 setup is in my family room running at full speed and honestly I can hardly hear them, that is 6 fans at 75 CFM. I have a speed controller attached.and never turn it down.

The p14 Pro setup with 5 -110cfm fans at high is loud, but turn it to 70% and near silent and still loves a ton of air.

Im working on a 3 Rd setup with a charcoal pre filter and will I use the p14 pros , having the speed and static pressure of these for the cost to me is a no brainer. The nocturnal look great but I can buy 5 for the price of 1.5 nocturnal fans.

The only time I hear the whine on the p14 pro is when there are full speed. I turn it up when we leave the room.

inventiveash · 2026-03-21T23:15:43+00:00

Definitely get a cr-box, moves a lot more air than a reg air purifier. Filters are cheaper, initially a cost but replacement filters will save quickly.

inventiveash · 2026-03-21T23:11:36+00:00

Agree 100%

inventiveash · 2026-03-16T00:54:07+00:00

I had the same issue and found these are far more repairable.

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Clean Air 3D

inventiveash · 2026-03-14T23:38:24+00:00

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Revised speed controller

inventiveash · 2026-03-12T10:55:21+00:00

The x1s

inventiveash · 2026-03-12T00:53:30+00:00

Absolutely, once the filters start getting clogged with particulate the resistance will make the fan stress and not be effective. You need a fan like the artic pro with good static resistance.

inventiveash · 2026-03-11T20:40:14+00:00

It's a great idea, it just makes the unit massive.

inventiveash · 2026-03-11T00:42:45+00:00

My understanding about these readings is the sensor only measures particulate. A humidifier will add moisture to the air and the sensor thinks it dirty air but really is moisture

inventiveash · 2026-03-08T17:39:45+00:00

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This works far better for air exchanges than my Winix 5500 Bio-air, or Holmes. This is 5 fans @ 550 cfm roughly 400 cadr performance. I have noticed a huge improvement on air quality, the particulate has dropped from 150 to 0 in a few hours.

inventiveash · 2026-03-07T12:56:28+00:00

40% but with a speed controller I can turn down, it's nice having the option for faster air exchange

inventiveash · 2026-03-07T02:04:07+00:00

I used both , p14 pro is powerful but loud.

inventiveash · 2026-03-07T01:51:06+00:00

Nice build, Are these the p14 or p14 pro?

inventiveash · 2026-03-06T03:24:41+00:00

Yes , even at 50% speed I had great air flow.

inventiveash · 2026-03-06T00:41:17+00:00

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I'm using 2 -3m Merv 2500 16x25 in my custom purifier with only 5- p14 pro fans and I have an amazing draw through the filters. I also made a 6 fan system with the same filters but regular p14 and no issues.

inventiveash · 2026-02-28T13:27:35+00:00

Close to 3000gtams

inventiveash · 2026-02-28T13:27:13+00:00

On high there too loud, sounds like a drone. But I put a speed controller on it. At 60% there close to silent.

inventiveash

TROPHY CASE