Universal Stepper Controller
Universal PWM Controller
CRAMPS
4-axis Digital to Analog Converter
Gecko Interface
Digital Input/Output Board
4-axis encoder counter
Copley Interface
(b) PWM Servo Amplifier
Brushless PWM Servo Amplifier
Spindle DAC
8-slot PPMC Motherboard
Fanuc Encoder Converter
Connector Panel
8-Channel Resolver Converter
Fanuc Serial Encoder converter (pulse coder)
Resolver Converter
Panasonic Encoder Converter
(d) Power Switch and Braking Module
D.C. Solid State Relay

CNC Retrofit Control Board for Sale Online

Browse our complete line of CNC retrofit control boards designed for precision motion control and machine automation. These boards support stepper and servo motors, offering solutions for multi-axis control, PWM generation, encoder feedback, and signal conversion. Compatible with LinuxCNC and other control systems, our retrofit boards enable seamless integration with existing CNC machinery, delivering reliable performance for industrial automation applications.

Our Range of Products
Universal Stepper Controller

Universal Stepper Controller

  • 250K steps/sec per axis
  • 4-axis stepper/servo support
  • 15 opto-isolated inputs
Universal PWM Controller

Universal PWM Controller

  • 10 MHz encoder counting
  • 25 ns PWM granularity
  • 16 optoisolated inputs
CRAMPS

CRAMPS

  • Beagle Bone compatibility
  • 6 stepper driver support
  • 4 thermistor sensors
4-axis Digital to Analog Converter

4-axis Digital to Analog Converter

  • 16-bit resolution
  • -10V to +10V output
  • Integrated E-stop logic
Gecko Interface

Gecko Interface

  • Gecko drive compatibility
  • Encoder position reading
  • Fault monitoring
Digital Input/Output Board

Digital Input/Output Board

  • 16 digital inputs
  • 8 SSR positions
  • E-stop controller

Showing 1 to 6 of 20 results

Frequently Asked Questions

What is a CNC retrofit control board?

A CNC retrofit control board replaces or upgrades existing machine controls, enabling modern software compatibility, improved precision, and expanded functionality for older CNC equipment.

Are these boards compatible with LinuxCNC software?

What's the difference between stepper and servo control boards?

Can I use these boards for both 3-axis and 4-axis machines?

What safety features are included in these control boards?

Do I need special cables or connectors for installation?

Can these boards work with my existing servo amplifiers?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

CNC Machine Tool Manufacturing

CNC Machine Tool Manufacturing

Retrofit control boards enable legacy CNC mills, lathes, and routers to run modern control software with improved precision and multi-axis coordination.

Industrial Automation

Industrial Automation

Control boards integrate with automated production lines for precise motion control of conveyors, pick-and-place systems, and assembly equipment.

3D Printing & Additive Manufacturing

3D Printing & Additive Manufacturing

Specialized boards like CRAMPS control extruder temperature, heated beds, and multi-axis stepper motors for precise layer deposition in 3D printers.

Robotics & Motion Control

Robotics & Motion Control

Encoder converters and PWM boards provide precise position feedback and servo control for industrial robots, gantry systems, and automated guidance vehicles.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Copley Interface | Buy CNC Servo Interface Board for Retrofit Systems

Buy CNC Servo Interface Board for Retrofit Systems

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Spindle DAC | Buy CNC Retrofit Spindle Control Circuit Board

Buy CNC Retrofit Spindle Control Circuit Board

Browse our comprehensive selection of CNC retrofit spindle control circuit boards designed for precision motion control. From digital-to-analog converters and PWM servo amplifiers to universal stepper controllers, our boards integrate seamlessly with LinuxCNC systems. Engineered for reliable performance in industrial automation, CNC machine retrofits, and servo control applications with expert technical support.
4-axis encoder counter | Buy CNC Encoder Interface Board for Accurate Control

Buy CNC Encoder Interface Board for Accurate Control

Browse our comprehensive selection of CNC encoder interface boards and motion control components designed for precise position feedback and system integration. Our product line includes encoder counters, signal converters, PWM controllers, and specialized interfaces compatible with LinuxCNC and leading servo systems. Engineered for industrial automation, CNC machining, and robotics applications with robust fault protection and flexible configuration options.

Why CNC Machine Builders Choose Pico Systems

LinuxCNC Compatibility Expertise

Our control boards integrate seamlessly with LinuxCNC software, offering proven compatibility and comprehensive technical documentation for reliable CNC automation.

Versatile Multi-Axis Solutions

From 4-axis stepper controllers to 8-channel resolver converters, we provide flexible board configurations that scale with your automation requirements.

Technical Support & Documentation

Access detailed technical resources and expert guidance for proper board selection, installation, and integration with your existing CNC machinery.

Get Expert Help Selecting the Right CNC Control Board

Our motion control specialists will help you identify the optimal retrofit board for your application. Receive technical guidance and pricing within 24 hours.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 314-965-5523 You can also send us a quick email at elson@pico-systems.com