{"product_id":"mks-servo42c-closed-loop-stepper-motor-controller-nema-17","title":"MKS SERVO42C Closed-Loop Stepper Motor Controller Nema 17","description":"\n\u003ch2\u003eMKS SERVO42C PCBA Closed-Loop Stepper Motor Controller for Nema 17\u003c\/h2\u003e\n\u003cp\u003eTake full command of your stepper motor projects with the \u003cstrong\u003eMKS SERVO42C V1.0 PCBA Controller\u003c\/strong\u003e. This compact, high-performance closed-loop servo controller board combines a 14-bit magnetic encoder with ARM Cortex-M0+ processing power to deliver precise position, speed, and torque control — eliminating missed steps and keeping your motion systems running smoothly at up to 1000 RPM.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're building a 3D printer, CNC router, or automation rig, the SERVO42C's Field-Oriented Control (FOC) algorithm means low noise, minimal vibration, and reduced heat generation — even under demanding loads.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClosed-Loop Control:\u003c\/strong\u003e Position, speed, and torque loops run simultaneously — no more lost steps at high speed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e14-Bit Magnetic Encoder:\u003c\/strong\u003e Ultra-fine angle resolution of just 0.08° for highly accurate positioning.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eField-Oriented Control (FOC):\u003c\/strong\u003e Delivers low noise, low vibration, and low heat output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4 Half-Bridge Driver with 8 MOSFETs:\u003c\/strong\u003e High operating efficiency across the full current range.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Input Voltage:\u003c\/strong\u003e Compatible with 7V–28V power supplies.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Microstepping Support:\u003c\/strong\u003e 1–256 subdivision (default 16), including odd subdivisions (e.g. 11).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Update Frequency:\u003c\/strong\u003e Position \u0026amp; velocity loops at 10 kHz; torque loop at 20 kHz.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUSART Serial Interface:\u003c\/strong\u003e Connect to a PC via serial port for easy parameter adjustment and monitoring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Compatibility:\u003c\/strong\u003e Supports Nema 17 motors with 0.9° or 1.8° step angles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3D Printing Ready:\u003c\/strong\u003e Supports maximum printing speeds of 150–180 mm\/s.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBoard Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMKS SERVO42C V1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMicroprocessor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eARM Cortex-M0+\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Driver\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Half-Bridge with 8 MOSFETs\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7V – 28V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEncoder\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14-Bit Magnetic Encoder\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjustable Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 – 3000 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubdivision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 – 256 (Default: 16)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAngle Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.08°\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUpdate Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePosition 10 kHz \/ Velocity 10 kHz \/ Torque 20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCBA Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~39 × 35.8 mm (1.54 × 1.41 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × MKS SERVO42C V1.0 Closed-Loop Stepper Motor Controller PCBA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-2-inch-8-piece-hex-short-socket-set-vanadium-steel\"\u003e1\/2\" Drive 8-Piece Hex Short Socket Set – Vanadium Steel\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hex-nut-bolt-extractor-tool-kit-10-piece\"\u003e10-Pc Hex Nut \u0026amp; Bolt Extractor Kit 9–19mm | HIP Tools\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-piece-complete-gardening-tool-kit\"\u003e10-Piece Gardening Tool Kit – Iron Head \u0026amp; Plastic Handle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What stepper motors is the MKS SERVO42C compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The MKS SERVO42C closed-loop controller is designed for \u003cstrong\u003eNema 17\u003c\/strong\u003e stepper motors with either a 0.9° or 1.8° step angle, making it widely compatible with most 3D printer and CNC machine motors.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the MKS SERVO42C work for 3D printing applications?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The SERVO42C supports maximum 3D printing speeds of 150–180 mm\/s. Its closed-loop feedback ensures no missed steps, resulting in more reliable, higher-quality prints, especially at elevated speeds.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I configure the MKS SERVO42C controller?\u003c\/h4\u003e\n\u003cp\u003eA: The board features a USART serial interface, allowing you to connect it to a PC via a serial port for full parameter adjustment and real-time status queries. Microstepping subdivision (1–256) and other settings can be configured via this interface.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What input voltage range does this controller support?\u003c\/h4\u003e\n\u003cp\u003eA: The MKS SERVO42C accepts a wide input voltage range of \u003cstrong\u003e7V to 28V\u003c\/strong\u003e, giving it broad compatibility with common power supplies used in 3D printers and CNC systems.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What stepper motors is the MKS SERVO42C compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The MKS SERVO42C closed-loop controller is designed for Nema 17 stepper motors with either a 0.9° or 1.8° step angle, making it widely compatible with most 3D printer and CNC machine motors.\"}}, {\"@type\": \"Question\", \"name\": \"Does the MKS SERVO42C work for 3D printing applications?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The SERVO42C supports maximum 3D printing speeds of 150–180 mm\/s. 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