{"product_id":"reprap-ramps-1-4-rrd-fan-extender-erweiterungsmodul","title":"RRD Fan Extender - Expansion Module for 2 Fans, RAMPS 1.4","description":"\u003ch3\u003eProduct overview\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eExpansion module for Reprap systems with RAMPS-1.4 controller boards\u003c\/li\u003e \u003cli\u003eControls up to two additional fans independently\u003c\/li\u003e \u003cli\u003eConnects via four dedicated pins on the mainboard\u003c\/li\u003e \u003cli\u003eReduces the load on the controller’s power outputs\u003c\/li\u003e \u003cli\u003eWith screw terminals for secure wiring\u003c\/li\u003e \u003cli\u003eCircuit board with protection against AC voltage and overcurrent\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eProduct description\u003c\/h3\u003e \u003cp\u003eThis expansion module adds the ability to control two additional fans independently to RAMPS-1.4 controller boards. The extender receives its control information via four separate connections on the mainboard and addresses each fan separately without placing the entire current load on the controller.\u003c\/p\u003e \u003cp\u003eThe module is mounted directly on the RAMPS-1.4 board. The fans themselves are connected via screw terminals, which ensure secure contact and prevent wear caused by repeated reconnection. Both channels are equipped with upstream protective devices to protect the mainboard in the event of a short circuit or overload.\u003c\/p\u003e \u003cp\u003eDuring operation, the module can be used wherever additional cooling control is required: at the print head to support material-specific cooling, at the hotend for improved temperature stability, or on the electronics themselves to dissipate heat under load. A typical application is in multicolor systems that have different cooling requirements at different positions.\u003c\/p\u003e \u003cp\u003eThe module requires an existing RAMPS-1.4 controller board whose firmware must already support two free fan pins. A power supply is required for each fan; the extender itself only controls the fan signals. The exact pins to be used must be coordinated with the installed firmware and its documentation before operation to avoid conflicts with other functions.\u003c\/p\u003e \u003ch3\u003eSafety notice\u003c\/h3\u003e \u003cp\u003eThis module is not intended for operation at mains voltage and is intended exclusively for building prototypes and for testing and development purposes on 3D printers. Work on or immediately next to the controller requires the assistance of a qualified electrician if there is any uncertainty regarding the power supply or wiring of the fans.\u003c\/p\u003e \u003ch4\u003eScope of delivery\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e1x 3D printer Reprap Ramps 1.4 RRD fan expansion module\u003c\/li\u003e \u003c\/ul\u003e","brand":"Funduino","offers":[{"title":"Default Title","offer_id":66043843215709,"sku":"F23106293","price":5.1,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1074\/5649\/5965\/files\/reprap-ramps-14-rrd-fan-extender-erweiterungsmodul-funduino-3824753.png?v=1791484217","url":"https:\/\/funduino.com\/en\/products\/reprap-ramps-1-4-rrd-fan-extender-expansion-module","provider":"Funduino","version":"1.0","type":"link"}