Solved Fan CFM Good? Better? Best? - Where did you buy?

Hello,

I've been searching the forums for fan replacements/upgrades. Every post I find has a "get the highest CFM you can get" or similar statement.

So just What is a:
Good CFM - ?.??
Better CFM - ?.??
Best CFM - ?.??

Amazon left me with 4.1 CFM - I grabbed the Kaze, these will be going back.
http://www.amazon.com/40x10mm-Beari...=UTF8&qid=1447696498&sr=1-3&keywords=40mm+fan

The Noctua on amazon shows Airflow 8,2 m³/h Airflow with L.N.A. 6,6 m³/h are these numbers the same as CFM?
http://www.amazon.com/40x10mm-Beari...=UTF8&qid=1447696498&sr=1-3&keywords=40mm+fan

Locally - Altex I found 6.1 CFM part numbers OD4010-12 & 70-4128
http://www.altex.com/40x10mm-Brushless-12VDC-Fan-OD4010-12MB-P154937.aspx

Before rushing out to buy locally or ordering from amazon again I'd like these numbers to guide the purchase. Granted some cheap fans may do the job but I'm in the printer, its in pieces so why put some "do the job" parts in.

Maybe we can sticky it? keep a thread where forum members can link to what and where they purchased. If this is already done I missed it feel free to point me in the right direction I would appreciate it.

Thanks for the info
Patrick

 

Noctua: 8.2 cubic meter/hour = 4.8 cubic foot/minute (CFM)
http://www.onlineconversion.com/flow_rate_volume.htm

 

http://www.amazon.com/Case-40x40x10...=UTF8&qid=1447715817&sr=1-2&keywords=40mm+fan this is what I use. Works great

6.24cfm

 

Thank you @Mike Kelly


Those should do for me as well.
so for future thread use and searching noobs as myself could we sticky something like this?

Good - 4 CFM
Better - 6 CFM
Best - Highest you can get just short of jet turbine!



Also quick Thanks to @robert sanchez for the conversion and link!

 

Very good point @WheresWaldo for my personal setup noise isnt a concern as long as we can talk over them with out yelling. I will be using Marquis dual fan mod (or similar model).

So essentially my R1 will end up (for a time anyway) as single E3dV6, Dual Fan mod, Nozzles .25, .4, .8
This setup (in my mind) puts me in a tech/mechanical spot, giving me time to tinker and learn software settings for a wide variety of results. Pretty well accepted this is a growth process where as my desire for better print quality, increased variety of printer materials etc moves forward this setup will change.

So in closing possibly? There are just way to many variables to be 100% accurate but the thread answers 2 basic questions for green Robo owners (I myself at less than 60 days). With the number of times I have seen this asked hence the request for potential sticky

A) My 40mm fan went out? What should i look for in a replacement?
B) I am doing the Marquis (Novice Expert) Dual Fan Mod what fans do I get?

1) There are hundreds of combinations and variables to consider with your Robo this should be a general guide and no means guarantees spectacular results
2) There is a trade off between CFM and noise i.e. Higher CFM = More Noise and vice versa
3) Links on where to buy are not suggestions just places where other members have purchased in past

CFM -
Good - 4 CFM - Size 40mm x 40mm x 10mm - Amazon Kaze
Better - 6 CFM - Size 40mm x 40mm x 10mm - Amazon EverCool
Best (or excessive) - Anything Higher - Reference Only for the two situations above A & B this is more than likely overkill. *If you choose to purchase fans of higher CFM i.e. Delta Fans referred to below your in some potentially uncharted territory. Pros & Cons, how to's etc you will be on your own.

For the record as of today I have made my purchases. The Evercool from Amazon 6+ CFM.

 

Thanks @WheresWaldo that is some heavy stuff right there. Glad the forums have members such as yourself who can bring that not so direct but relate-able knowledge from outside use.

I edited my post just prior, IMHO the Good & better should suffice for the 2 scenarios listed. If the member decides to buy high CFM or jet turbines they will be on their own.