Reddit mentions of FFB0412SHN-F00 40 x 40 x 28mm Cooling Fan, 24 CFM, 51.5 dBA, 13000 RPM, 0.60A, 3 pin Tach connector. Ship from USA !!
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We found 1 Reddit mentions of FFB0412SHN-F00 40 x 40 x 28mm Cooling Fan, 24 CFM, 51.5 dBA, 13000 RPM, 0.60A, 3 pin Tach connector. Ship from USA !!. Here are the top ones.
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Fan Size: 40 x 40 x 28mm, Rate Voltage: 12VDC, Operating Voltage: 4.5 - 13.8VDC, Input Current: 0.6A, Power: 7.2WFan Speed: 13000 RPM, Air Flow: 24 CFM, 0.68 Cubic Meter/MinuteAir Pressure: 1.075 inchH2O or 27.03 mmH2O maximum, Noise Level: 54.5 dBABearing: Ball, Wire Lead: 3 wires 3 pin connector with Speed SensorPlease contact Tech Gears 4 Me store if you have any questions, thank you.
Specs:
| Color | Black |
| Height | 1.1 Inches |
| Length | 1.6 Inches |
| Weight | 0.125 Pounds |
| Width | 1.6 Inches |
well the stepper drivers came with little heat sinks which help some but I found that they still get warm so i printed off this fan mount. (http://www.thingiverse.com/thing:166045) It keeps some air flow over it so it helps a fair amount. The stepper drivers are made so if they get too hot they will throttle themselves down which can cause the motors to skip during long prints. So keeping the drivers cool can help a lot with reliability and probably helps with longevity. I just used a 80mm fan I had laying around, nothing fancy.
For the fans I got 3 of these bad boys (http://www.amazon.com/gp/product/B008PFFDCW?refRID=6Z89M8MBRGGY4JFBH4EC&ref_=pd_rhf_sc_p_img_3). yes i know they are overkill for just about anything and very loud but I just run them at 5v instead of 12v and you cant hear them over the stepper motors and they still move plenty of air with a lot of static pressure. You want that static pressure if you mount them on a fan duct so that you will get good airflow and not blow back. about the only down side to them is that they are little over twice as thick as the fan that comes with the kit so you need longer screws depending on how or where you mount it.