Carbon fiber 90mm EDF motor mount modification

Sierra Composites is a large supplier to the radio control community, as it has so many uses that it is best suited for. The example here is an excellent use of our carbon fiber .059″ sheet material as a motor mount repair / strengthening application on a 90mm EDF fan unit.  These EDF fans can turn in the 40,000 rpm range, and even with proper balancing cause some vibrations. The motor for this fan is a KD-36-74 and weighs 390 grams, it needs a solid motor mount. The stock motor mount in this Haoye 90mm fan unit is a weak spot and can not take motor heat in the 170 degF  range along with some vibrations. The mount design is weak to begin with. Our carbon fiber sheet was used to strengthen up that mount as shown in the photos. The carbon backup disc is bonded to the original plastic fan housing to become one complete part with the housing.

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