What Duet3D does

Duet3D Ltd is a UK-based designer and seller of integrated motion control electronics, firmware, and software for 3D printers, CNC machines, laser cutters, and industrial automation systems. Founded in 2019 as a spin-off of a joint venture between Think3DPrint3D Ltd and Escher Technologies Ltd (with roots in the open-source RepRap Project), the company operates from Peterborough, UK with a team of six employees. Its product stack spans the Duet 3 family mainboards (flagship 6HC with 6x 6.3A TMC stepper drivers, 6XD, and Mini 5+ variants), legacy Duet 2 series, and a growing set of CAN-FD expansion boards including Tool Boards, Tool Distribution Boards, the Scanning Z Probe, and the recently launched Duet Automation DIN-rail industrial control range.

The company's underlying technology is a tightly integrated open-source stack: RepRapFirmware (GPL v3) supports multiple kinematics (Cartesian, CoreXY, delta) and advanced features such as mesh bed compensation and input shaping; DuetWebControl (GPL v2) provides a browser-based UI; and a distributed CAN-FD bus enables modular expansion from single-board desktop configurations to multi-board industrial machines. All hardware designs are published under CERN Open Hardware Licenses, while the DuetSoftwareFramework exposes HTTP/REST APIs (with C# and Python SDKs) for integration with single-board computers and custom workflows.

Duet3D generates revenue primarily from hardware product sales (control boards, expansion modules, and accessories) sold through its direct e-commerce site and a global network of 15+ authorized resellers across the UK, Europe, Americas, and Asia-Pacific, supplemented by paid consultancy services covering firmware/UI customization and OEM hardware design. The customer base is horizontally segmented across hobbyist makers, OEM/commercial machine builders, academic researchers, and (emerging) industrial automation customers, with pricing not publicly disclosed. The company has no disclosed external funding, no parent company, and operates as a privately held UK Ltd.

Name

Duet3D

Legal name

Duet3D Ltd

Website

https://duet3d.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

1–10 employees

Short description

Duet3D designs and sells open-source motion control electronics, firmware, and software for 3D printers, CNC machines, and industrial automation, serving hobbyists, OEMs, academics, and industrial customers globally via direct e-commerce and a network of 15+ resellers.

Ownership category

akta.pro rank

Product category

Motion Control Electronics

NAICS

Computer and Peripheral Equipment Manufacturing (33411), Other Measuring and Controlling Device Manufacturing (334519), Relay and Industrial Control Manufacturing (335314)

SIC

Electronic Components & Accessories (3670), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

3D Printer Automation & Peripheral Hardware (Material Handling, Depowdering, Build Units) (IMAAAAAL)

akta.pro secondary industries

Electronics, Sensors & Control Spares (Thermistors, Encoders, Boards, Cables) (IMAAAIAL), Printer & System Spare Parts (Motors, Belts, Rails, Build Plates) (IMAAAIAA)

Keywords

• Motion control electronics
• 3D printer control boards
• CNC controller hardware
• Industrial automation modules
• Open-source firmware

Headquarters

HQ city

Peterborough

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Hardware Product Sales: Duet3D generates primary revenue from selling control electronics including mainboards (Duet 3 Mainboard 6HC, Duet 3 Mainboard 6XD, Duet 3 Mini 5+ WiFi/Ethernet, Duet 2 WiFi/Ethernet/Maestro), expansion boards (Tool Boards, Distribution Boards, Scanning Z Probe), and accessories. Products range from entry-level controllers to advanced multi-axis systems.
2. Consultancy Services: Paid consultancy services covering customisation of DuetWebControl, additional feature development for RepRapFirmware, configuration assistance for specific machine designs, and custom hardware design and production. Services target customers with specific needs not met by standard documentation and community support.
3. Academic Collaboration: Collaboration with universities and academics including subsidized hardware, research project partnerships, and grant funding collaboration. Support ranges from subsidized pricing to active co-development on research projects.

Go-to-market motion2 records

Distribution channels6 records

Marketing channels7 records

Core offering

Duet3D designs and sells proprietary motion control electronics (mainboards, tool boards, distribution boards, scanning Z probes) paired with open-source RepRapFirmware and DuetWebControl web interface. The integrated stack supports desktop 3D printers, CNC machines, laser cutters, pick-and-place machines, and industrial automation systems using distributed CAN-FD architecture. The company also provides paid consultancy services covering DuetWebControl customization, RepRapFirmware feature development, configuration assistance, and custom hardware design for OEM customers.

Product overview

Duet3D offers an integrated motion control platform combining proprietary hardware control boards, open-source RepRapFirmware, and DuetWebControl web interface. The product portfolio includes Duet 3 family mainboards (6HC as flagship high-power controller with 6x 6.3A drivers, 6XD supporting external stepper drivers, and Mini 5+ compact WiFi/Ethernet variants), Duet 2 series mainboards (WiFi, Ethernet, and Maestro variants), and CAN-FD expansion boards including Tool Board 1LC for direct drive extruders, Tool Distribution Board for multi-tool setups, Roto Toolboard for E3D Revo Roto integration, and Scanning Z Probe for rapid inductive bed scanning with integrated accelerometer. All hardware and software is open-source (CERN OHL hardware, GPL firmware).

Differentiator

Problem solved

Functional benefit

Products and services

• Duet 3 Mainboard 6HC High-power Duet 3 main controller featuring 6x TMC2160/TMC5160 stepper drivers (6.3A peak), ATSAME70Q20B processor (300MHz ARM Cortex M7), 100BaseTX Ethernet, VIN 11-48V. Supports CAN-FD expansion boards, 4 high-current heater outputs, 6 PWM-controlled fan outputs, 4 thermistor inputs, PT100/thermocouple daughter board support, and 9 I/O connectors.
• Duet 3 Mainboard 6XD Duet 3 mainboard supporting 6 external stepper motor drivers via step/direction/enable outputs and fault inputs. ATSAMV71Q20B processor (120MHz ARM Cortex M4F), 3x 6A high-current outputs, 4 PWM fan outputs, 3 thermistor inputs, and PT100/thermocouple daughter board support. CAN-FD bus for expansion connectivity. Requires RRF 3.4 or later.
• Duet 3 Mini 5+ WiFi Compact mid-range Duet 3 controller with 5x TMC2209 stepper drivers (2A peak), ATSAME54P20A processor (120MHz ARM Cortex M4F), 2.4GHz WiFi with external antenna, 3 high-current heater outputs, 3 controlled fan outputs. VIN 11-30V. SBC attachment support from RRF 3.2.
• Duet 3 Mini 5+ Ethernet Compact mid-range Duet 3 controller with 5x TMC2209 stepper drivers (2A peak), ATSAME54P20A processor (120MHz ARM Cortex M4F), 100BaseTX Ethernet, 3 high-current heater outputs, 3 controlled fan outputs. VIN 11-30V.
• Duet 2 WiFi Duet 2 mainboard with 5x TMC2660 stepper drivers (2.5A peak), ESP8266 WiFi module, ATSAM4E8E processor, 15A bed heater output, 2x 6A heater outputs, 5 on-board endstop connectors. Supports RepRapFirmware 2.x and 3.x. VIN 11-25V.
• Duet 2 Ethernet Duet 2 mainboard with 5x TMC2660 stepper drivers (2.5A peak), 100BaseTX Ethernet, ATSAM4E8E processor, 15A bed heater output, 2x 6A heater outputs, 5 on-board endstop connectors. Supports RepRapFirmware 2.x and 3.x. VIN 11-25V.
• Duet 2 Maestro Entry-level Duet 2 controller with integrated TMC2660 stepper drivers, optimized for cost-sensitive applications. Supports RepRapFirmware 2.x and 3.x.
• Duet 3 Tool Board 1LC CAN-FD connected expansion board providing complete extruder control with ARM Cortex M0+ (48MHz), TMC2209 stepper driver (1.6A peak), 5A hot-end heater output, 3-wire and 4-wire fan outputs, 2 thermistor/PT1000 inputs, Z probe connector, and filament monitor connector. Designed for direct drive extruders with mounting holes matching E3D Hemera XS v1.3.
• Duet 3 Tool Distribution Board Distribution board allowing connection of up to 4 Duet 3 Toolboards to the Duet 3 Mainboard via CAN-FD bus. Features CAN-IN and CAN-OUT RJ11 connectors, 4x CAN loops to toolboards (JST ZH on v0.5, JST PA on v1.0 with latching connectors), 12-32V VIN distributed to 4x 5A fused power outputs. Includes bus termination resistor with jumper selection.
• Duet 3 Roto Toolboard CAN-FD connected toolboard designed for E3D Revo Roto extruder integration. Features ATSAME51G19A processor (120MHz ARM Cortex M4F), integrated TMC2240 stepper driver (up to 1A peak), LIS2DW accelerometer, LDC1612 inductive sensor for scanning Z probe. Includes Revo heater/thermistor connections using E3D-supplied connectors, part cooling fan support, and 4 IO ports.
• Duet 3 Scanning Z Probe CAN-FD connected inductive sensing board with LDC1612 sensor for rapid bed surface scanning without Z-axis movement. Features ATSAMC21G18A processor (48MHz ARM Cortex M0+), integrated LIS2DW accelerometer for input shaping calibration, and temperature measurement for coil compensation. Supports coils up to 15mm diameter; maximum mesh 441 points (Mini 5+) or 792 points (6HC/6XD). Mounting via FFC cable for flexible positioning. Requires RRF 3.5 or later.
• Duet3D Consultancy Services Paid consultancy services covering customisation of DuetWebControl, additional feature development for RepRapFirmware, configuration assistance for specific machine designs, and custom hardware design and production. Services target OEM customers and machine builders with specific needs not met by standard documentation and community support.

Quantifiable outcome

• Mesh bed scanning at 441-792 points in under 20 seconds with Duet 3 Scanning Z Probe
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature10 records

Partnerships

Three partnerships are on record, tiered core and major.

• Think3DPrint3D LtdcoreStrategic or Co-development Partner · 1 January 2019Think3DPrint3D Ltd was one of the founding partners in the joint venture project (starting 2014) that evolved into Duet3D Limited in 2019. Think3DPrint3D supplies reliable and affordable 3D printer kits and components, founded by Roland Lock in 2011.
• Escher Technologies LtdcoreStrategic or Co-development Partner · 1 January 2019Escher Technologies Ltd was the other founding partner in the joint venture project (starting 2014) that evolved into Duet3D Limited in 2019. David Crocker is associated with Escher Technologies, bringing expertise in firmware and software development.
• E3DmajorStrategic or Co-development PartnerDuet3D has developed the Duet 3 Roto Toolboard specifically designed to integrate with E3D Revo Roto extruder and Revo hotend heaters and temperature sensors. The mounting holes and connector locations of the Duet 3 Tool Board 1LC match E3D Hemera XS.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/Duet3D
• LinkedInlinkedin.com/company/duet3d

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Duet3D