SERVO42A NEMA17 closed loop stepper motor Driver CNC 3D Printer

₹4,599.00 ₹ 3897.46 + 701.54 GST
Out of stock

1-7 Days Express Delivery in India Available

NEMA17 Stepper with Closed-Loop Control for 3D Printing. This means that even when it does miss a step, this motor can easily spot that small mistake and rectify it accordingly before it goes too far. Increases print speed, quality and reliability.

This conversion kit is a brilliant design from MakerBase that takes the best parts of both stepper motors as well as servo motors, to create a closed-loop motor that not only offers the high speed and holding torque of a stepper but also the near-perfect positional accuracy of a servo as it continuously reads its own position after moving, before making on-the-fly adjustments so that the output steps match the input commands.

It simply converts a NEMA 17 (42 x 42mm) stepper motor into a strong and accurate servo that can handle relatively heavy objects such as DSLR cameras. This conversion module has been designed with the intent to make a loss-free stepper motor and uses a closed-loop system with a positional sensor for on-the-fly adjustments as it spins. This means that even when it does miss a step, this motor can easily spot that small mistake and rectify it accordingly before it goes too far.

Due to this functionality, the MKS SERVO42A can greatly increase print speeds up to 200m/s on some 3D Printers without having to modify any firmware, commit to any major hardware changes or jump through any other loops just to get it working. This module can be used on any linear movement mechanism found in CNC router machines and 3D printers as well as slide tables, etc.


  • All parts are installed and debugged well, easily operate.
  • High-speed printing does not lose step
  • Easy to install and simple structure.
  • Available to configure through the serial port debugging assistant and multiple commands, and it can feedback the data.
  • Input voltage:12V-24V
  • Maximum input current:2A
  • Closed loop Feedback frequency :6kHz
  • Precision:0.1125degree
  • Microsteps:16.32,64,128.256
  • Processor Speed: 48MHz
  • USB Interface: Yes
  • Serial Port: Yes
  • OLED Display Interface: Yes, 400KHz I2C 4-Pin Header
  • Colour: black
  • Material: plastic + metal
  • Shaft Size and Type: 5mm (d-type)
  • Current Adjustment Range: 0-3.3A (default set to 300mA)
  • Step Angle: 22.5° (Default) / 11.25° / 5.625° / 2.815° / 1.40625°
  • Step Precision: >0.1125°
  • Only the above package content, other products are not included


  • Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

Package Contents:

  • 1 x SERV042A
  • 1 x motherboard adapter
  • 2 x cable
  • 1 x OLED
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Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in

  • Placing an order online our website probots.co.in for quick and fast delivery
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We delivery electronics components and parts throughout India using standard couriers like Bluedart, Delhivery & India Post.

  • Dispatch Time: 1 Working Day for most orders
  • Guranteed Delivery Time: 1-7 days within India under Express Shipping

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Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in

We offer specialized services for Bulk, Wholesale & B2B Customers like discounted prices, additional shipping options, customised products, etc . Customer with large quantity & regular orders qualify for the specialised discounted rates.

We also offer dedicated sales team to assist you with the order process by providing sales quotations, PI, technical support for choosing products, etc.

Note: Business Orders are processed manually and usually take 1-3 days  to process compared to placing the order directly on our website. Please plan your purchases accordingly.

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