KINGROON KP3S PSU 12CM FAN MOUNTER

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### Related Article **Japanese** "電源ユニットの静音化 – KINGROON KP3S情報" http://hitoriblog.com/kingroon_kp3s/docs/mods/silencing/quieting_the_power_supply_unit/ **Google Translated** "Reducing the noise level of power supply units - KINGROON KP3S Information" https://translate.google.com/translate?sl=auto&tl=ja&u=http://hitoriblog.com/kingroon_kp3s/docs/mods/silencing/quieting_the_power_supply_unit/ ### Preface The KINGROON KP3S is very quiet in operation with the stepper and other noises, but the two 3010 fans and the power supply fan are very noisy and ruin all the quietness of the sales story. "KINGROON KP3S PSU 12cm Fan Mounter" is a mounter for a 12cm fan to help quiet the power supply. This parts is used in place of the top panel of the power supply unit. The 12cm fan generally operates at 12V, so you will need a DC-DC step-down converter or a resistor divider to make it work with the KINGROON KP3S with a 24V power supply. *** Carefully insulate the DC-DC conversion circuit in the power supply. *** This part is too big to print on the KP3S. But don't worry, it's designed to take up only 180mm x 180mm of molding space, which means it can be printed on the KP3S itself. ### Notice *** It is a fire hazard. Modification is done at your own risk.*** To avoid electromagnetic interference and fire, it is recommended to apply aluminum tape to the surface. ### BOM - 12cm Cooling Fan (Noctua NF-F12 12V is a choice that's not a mistake. https://s.click.aliexpress.com/e/_AKe93l ) - DC-DC Converter x 1 (24V to 12V https://s.click.aliexpress.com/e/_9Qm3bz ) or 820ohm 1/4W resistors x 4 - Aluminum tape https://s.click.aliexpress.com/e/_A9S2WJ - M3 * 10mm screw x 8 - M4 * 16mm scew x 4 - M4 Nuts x 4 ## Cable Management Tips Space efficiency may be improved by using a power cable with an L-shaped root. In this case, you have the option of rotating the power cable connector 180 degrees.