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Educational Robots 3-Axis STM32 Desktop Educational Robot Arm (Basic Version)
3-Axis STM32 Desktop Educational Robot Arm (Basic Version)
3-Axis STM32 Desktop Educational Robot Arm (Basic Version)
3-Axis STM32 Desktop Educational Robot Arm (Basic Version)
3-Axis STM32 Desktop Educational Robot Arm (Basic Version)
3-Axis STM32 Desktop Educational Robot Arm (Basic Version)
3-Axis STM32 Desktop Educational Robot Arm (Basic Version)

3-Axis STM32 Desktop Educational Robot Arm (Basic Version)

MODEL: ZK-bot301ed

The ZEKEEP ZK-bot301ed is a 3-axis STM32 desktop educational robot arm with a 0.5 kg rated payload, 340 mm effective working radius and ±1 mm repeatability. Equipped with 42 mm stepper motors, spur gear reducers, a 4-inch serial touchscreen teach pendant, PC-based teaching, joint and world coordinate systems, 4 DI / 4 DO interfaces, USB serial communication and Bluetooth connectivity, it supports point-to-point, linear, linear offset and palletizing motion. Designed for robotics education, STM32 embedded systems training, PLC integration, maker projects and introductory robot motion control.

Payload

0.5KG

Reach

340MM

Repeatability

±1mm

End Speed

/

Product Highlights


ZEKEEP ZK-bot301ed 3-Axis STM32 Desktop Educational Robot Arm


STM32-Based Control × 3-Axis Stepper Drive × Joint and World Coordinate Systems — A Practical Platform for Robotics Education and Development.


The ZEKEEP ZK-bot301ed is a three-axis STM32 desktop educational robot arm designed for robotics training, embedded systems education and secondary development projects. With a three-degree-of-freedom structure, stepper motor drive and spur gear reduction mechanisms, it provides a practical hardware platform for learning robot motion control, coordinate systems and basic automation applications.



The robot arm has a rated payload of 0.5 kg, an effective working radius of 340 mm and a repeatability of ±1 mm. Each of its three axes supports a maximum speed of 120°/s. Its compact 6 kg overall weight makes it suitable for desktop teaching environments, laboratory exercises and maker projects.



The drive system uses 42 mm stepper motors and spur gear reducers. Through the three-axis structure, students can explore base rotation, shoulder movement and elbow movement, and understand how individual joint movements combine to position the end effector.



For operation and teaching, the ZK-bot301ed supports a 4-inch serial touchscreen teach pendant and PC-based teaching. It provides both joint and world coordinate systems, together with point-to-point, linear, linear offset and palletizing motion functions. These features allow students to practice basic robot programming, coordinate transformations and trajectory control.



For external connectivity, the robot provides four digital inputs (DI), four digital outputs (DO), USB serial communication and a Bluetooth interface. The 24V / 0V digital I/O signals support interaction with external PLCs, microcontroller development boards and peripheral devices, providing opportunities for integrated automation experiments.



With its compact structure, accessible motion functions and multiple communication interfaces, the ZK-bot301ed is suitable for robotics and automation education, STM32 embedded control training, maker projects and introductory research into robot motion control.



Key Features and Product Highlights


1. Three-Axis Structure for Learning Fundamental Robot Motion

A practical introduction to robotic joints and coordinated movement.

The ZK-bot301ed uses a three-degree-of-freedom structure consisting of the base, shoulder and elbow joints.

Students can explore the movement relationships between the three axes and learn how joint motion affects the position of the end effector. It provides a practical foundation for understanding robot kinematics and motion control.



2. STM32-Based Control for Embedded Systems Education

A hardware platform for learning embedded control and robotics applications.

The robot is designed around STM32-based control and can be used in educational projects involving embedded systems, motor control, communication and robot motion algorithms.

It is suitable for practical courses in automation, electronic information engineering, mechatronics and robotics.



3. Stepper Motor Drive with Spur Gear Reduction

A straightforward drive configuration for studying motor control and mechanical transmission.

The robot arm uses 42 mm stepper motors combined with spur gear reducers to drive its three motion axes.

This configuration provides a practical platform for learning stepper motor operation, joint movement and the relationship between motor drive and mechanical motion.



4. 340 mm Effective Working Radius for Desktop Experiments

A compact working envelope for laboratory and classroom applications.

With an effective working radius of 340 mm and a rated payload of 0.5 kg, the robot is suitable for small workpieces and desktop demonstrations.

Its working range supports basic picking, placement, drawing and palletizing experiments.



5. ±1 mm Repeatability for Basic Positioning Exercises

Supports introductory positioning and repetitive motion training.

The specified repeatability is ±1 mm, making the robot suitable for educational applications involving repeated positioning, trajectory demonstrations and basic pick-and-place tasks.

Students can use these exercises to understand the relationship between motion settings, positioning performance and practical operating conditions.



6. 4-Inch Touchscreen Teach Pendant for Convenient Operation

Touchscreen teaching combined with PC-based control.

The robot is equipped with a 4-inch serial touchscreen teach pendant and also supports PC-based teaching.

These control methods allow users to configure basic robot movements, switch coordinate systems and conduct teaching exercises without relying exclusively on manually written control programs.



7. Joint and World Coordinate Systems for Motion Control Learning

Two coordinate systems support different types of movement exercises.

The robot supports both joint and world coordinate systems.

Students can practice individual joint movement and coordinated spatial positioning, helping them understand the relationship between joint control and end-effector movement.



8. Multiple Trajectory Functions for Practical Robot Programming

Supports common motion tasks for educational demonstrations.

The robot supports point-to-point, linear, linear offset and palletizing motion functions.

These functions can be used in exercises involving trajectory planning, position adjustment, repetitive placement and basic automation workflows.



9. 4 DI / 4 DO Interfaces for PLC and Microcontroller Integration

External digital signals support integrated control experiments.

The robot provides four digital input channels and four digital output channels using 24V / 0V digital signals.

These interfaces can be used to connect external sensors, PLCs, microcontroller development boards and actuators, enabling practical exercises in signal input, output control and device coordination.



10. USB Serial and Bluetooth Interfaces for Communication Development

Multiple communication options for external control and data exchange.

The robot provides USB serial communication and a Bluetooth interface.

These interfaces support learning projects involving serial communication, external device connectivity and wireless control development. Actual control functions depend on the available communication protocol and software support.



11. Compact and Lightweight Design for Flexible Deployment

Suitable for teaching laboratories, training workstations and maker environments.

With an overall weight of 6 kg and support for desktop and floor mounting, the ZK-bot301ed can be deployed in different teaching and demonstration environments.

Its compact configuration makes it convenient for classroom experiments, laboratory training and introductory robotics development.

























































Frequently Asked Questions (FAQ)

1. What type of robot is the ZK-bot301ed?

The ZK-bot301ed is a three-axis STM32 desktop educational robot arm. It is designed for robotics education, embedded systems training, automation demonstrations and secondary development.



2. How many degrees of freedom does the robot arm have?

It has three degrees of freedom (3 DOF), consisting of the base, shoulder and elbow joints. It does not have an independent fourth-axis end-effector rotation joint.



3. What is the rated payload?

The rated payload is 0.5 kg. The actual usable payload should be evaluated according to the end-effector configuration and operating conditions.



4. What is the effective working radius?

The effective working radius is 340 mm.



5. What is the repeatability?

The specified repeatability is ±1 mm, suitable for basic educational positioning, repetitive motion and pick-and-place demonstrations.



6. Which motors does the robot use?

The robot uses 42 mm stepper motors with spur gear reducers to drive its three motion axes.



7. What control methods are supported?

The robot supports a 4-inch serial touchscreen teach pendant and PC-based teaching.



8. Which coordinate systems are supported?

It supports both the joint coordinate system and the world coordinate system, allowing users to practice individual joint movement and coordinated spatial positioning.



9. Which motion functions are available?

The robot supports point-to-point, linear, linear offset and palletizing motion functions.



10. Can the robot connect to an external PLC or microcontroller?

Yes. It provides four digital inputs (DI), four digital outputs (DO), USB serial communication and a Bluetooth interface. These can be used for external signal interaction and communication development, subject to the corresponding device and software configuration.



11. Can it be used for writing, drawing and palletizing demonstrations?

These are potential educational project applications. Writing and drawing require an appropriate pen attachment, while palletizing requires a suitable end effector and corresponding program configuration.



12. Is the robot suitable for university and vocational education?

Yes. It can be used in robotics engineering, automation, electronic information engineering and mechatronics training programs, particularly for introductory STM32 embedded control, stepper motor drive, coordinate systems and robot motion control.



13. Does the robot support Bluetooth wireless control?

The hardware specification lists a Bluetooth interface. Actual wireless control functions depend on the supported communication protocol, software and external device configuration.


Product Selection and Project Consultation


Before selecting the ZK-bot301ed, it is recommended to clarify the teaching or development requirements:

  • Teaching objectives: Whether the project focuses on STM32 embedded control, stepper motor drive, robot kinematics, coordinate systems or automation integration.

  • Payload requirements: Whether the workpiece and end-effector configuration are within the 0.5 kg rated payload.

  • Working range: Whether the 340 mm effective working radius meets the requirements of the experiment or demonstration.

  • Motion functions: Whether point-to-point, linear, linear offset and palletizing functions meet the intended project requirements.

  • Control method: Whether touchscreen teaching, PC-based teaching or external control is required.

  • Communication requirements: Whether USB serial communication or Bluetooth connectivity is needed.

  • External interfaces: Whether the four DI and four DO channels meet the requirements for PLC, sensor or microcontroller integration.

  • End-effector requirements: Whether a pen, gripper, suction cup or customized tool is needed for the planned project.

  • Installation environment: Whether desktop or floor mounting is more suitable for the teaching workstation.

Based on the course objectives, experimental projects and external equipment requirements, the robot arm can be configured as a practical platform for robotics education, embedded development and introductory automation training.


Specifications

Core Technical Specifications


Core Specifications of the 3-Axis Educational Robot Arm


ParameterSpecification
Product NameZK-bot301ed 3-Axis STM32 Desktop Educational Robot Arm (Basic Version)
Product ModelZK-bot301ed
Product Type3-Axis STM32 Educational Desktop Robot Arm
Degrees of Freedom (DOF)3 DOF
Rated Payload0.5 kg
Repeatability±1 mm
Effective Working Radius340 mm
Maximum Joint Speed120°/s per axis
Joint Motion RangeJ1: -160° to +160°; J2: -100° to 0°; J3: -115° to 0°
Drive System42 mm Stepper Motors
TransmissionSpur Gear Reducers
Control Method4-Inch Serial Touchscreen Teach Pendant + PC-Based Teaching Software
Motion Trajectory FunctionsPoint-to-Point, Linear, Linear Offset and Palletizing
Coordinate SystemsJoint Coordinate System and World Coordinate System
External Communication and I/O24V / 0V Digital I/O: 4 DI and 4 DO; USB Serial Communication; Bluetooth Interface
Operating VoltageAC 220V / 110V
Maximum Power Consumption50W
Operating Temperature-10°C to 50°C
Overall Weight6 kg
Mounting OptionsDesktop Mounting / Floor Mounting
Standard ConfigurationRobot Arm, Control Cabinet and 4-Inch Serial Touchscreen


Joint Motion Ranges and Maximum Speeds


Joint AxisMoving SectionMaximum Motion RangeMaximum Joint Speed
J1Base-160° to +160°120°/s
J2Shoulder-100° to 0°120°/s
J3Elbow-115° to 0°120°/s

The three-axis robot arm uses base rotation, shoulder pitching and elbow pitching to adjust the end-effector position in space.


Its three-joint structure is designed for basic spatial positioning and coordinated movement, making it suitable for educational exercises involving joint control, Cartesian coordinate movement, trajectory planning and pick-and-place operations.



Drive and Transmission System


ParameterSpecification
Drive TypeStepper Motors
Motor Specification42 mm Stepper Motors
Transmission MechanismSpur Gear Reducers
Number of Motion Axes3
Motion ControlThree-Axis Stepper Motor Control
Positioning Performance±1 mm Repeatability

The robot arm uses stepper motors and spur gear reduction mechanisms to drive its three motion axes.


This configuration provides a practical hardware platform for learning stepper motor control, joint movement, coordinate transformation and basic robot motion planning.



Motion Control and Trajectory Functions


ParameterSpecification
Point-to-Point MotionSupported
Linear MotionSupported
Linear OffsetSupported
Palletizing MotionSupported
Joint Coordinate SystemSupported
World Coordinate SystemSupported
Maximum Joint Speed120°/s per axis
Joint Movement ControlSupported
Multi-Axis Coordinated MovementSupported
Teaching MethodTouchscreen Teach Pendant and PC-Based Teaching
External I/O ControlSupported through DI / DO interfaces

The robot supports point-to-point movement, linear motion, linear offset and palletizing functions.


Through joint and world coordinate systems, students can explore the relationship between individual joint movements and end-effector positioning, and learn the fundamentals of robot motion control and trajectory planning.



Teach Pendant and Control System


ParameterSpecification
Teach Pendant TypeSerial Touchscreen Teach Pendant
Screen Size4 inches
Control MethodTouchscreen Teach Pendant + PC-Based Teaching
Operation InterfaceGraphical Teaching Interface
Coordinate SystemsJoint Coordinate System and World Coordinate System
Motion FunctionsPoint-to-Point, Linear, Linear Offset and Palletizing
Position TeachingSupported
PC-Based TeachingSupported

The robot arm is equipped with a 4-inch serial touchscreen teach pendant and supports PC-based teaching.


Students can use the teaching interface and PC software to configure motion tasks, switch coordinate systems and establish basic robot movement sequences.



External Communication and I/O


ParameterSpecification
Digital Signal Type24V / 0V Digital Signals
Digital Inputs (DI)4 Channels
Digital Outputs (DO)4 Channels
USB CommunicationUSB Serial Communication
Wireless CommunicationBluetooth Interface
External Device ConnectivitySupported through available communication and I/O interfaces
External ControlSupports DI / DO Signal Interaction

The robot arm provides four digital input channels and four digital output channels, together with USB serial communication and a Bluetooth interface.


These interfaces can be used for communication and interaction with external PLCs, microcontroller development boards, sensors and other devices, supporting practical exercises in signal acquisition, device control and serial communication.



Electrical and Operating Environment


ParameterSpecification
Operating VoltageAC 220V / 110V
Maximum Power Consumption50W
Operating Temperature-10°C to 50°C
Overall Weight6 kg
Mounting OptionsDesktop Mounting / Floor Mounting
Applicable EnvironmentEducational and General Indoor Applications


Standard Configuration and Components


ComponentQuantity / Specification
ZK-bot301ed 3-Axis Educational Robot Arm1 unit
Control Cabinet1 unit
4-Inch Serial Touchscreen1 unit


Dimensions

Product Dimensions and Working Range

Robot Arm Working Range

  • Degrees of freedom: 3 DOF

  • Rated payload: 0.5 kg

  • Repeatability: ±1 mm

  • Effective working radius: 340 mm

  • Maximum speed of each joint: 120°/s

  • J1 motion range: -160° to +160°

  • J2 motion range: -100° to 0°

  • J3 motion range: -115° to 0°

The robot arm uses three motion joints to perform spatial positioning and coordinated movement. Its 340 mm effective working radius makes it suitable for desktop robotics experiments, educational demonstrations and small-scale pick-and-place tasks.



Installation and Deployment

The robot arm supports both desktop and floor mounting. Its compact 6 kg overall weight makes it suitable for deployment in teaching laboratories, training workstations, maker spaces and demonstration environments.

The installation position can be selected according to the available workspace, teaching equipment layout and experimental requirements.







Industries


Applicable Industries and Application Fields


1. Vocational Colleges and Universities: Robotics and Automation Education

Suitable for practical training in robotics engineering, automation, electronic information engineering and mechatronics programs.

The STM32-based robot platform can be used in introductory courses covering embedded systems, stepper motor control, coordinate systems and basic robotic motion control.



2. PLC and Microcontroller Integrated Training

Suitable for integrated training involving PLCs, microcontrollers and external device communication.

Through its 4 DI / 4 DO digital signal interfaces and serial communication functions, the robot can be connected to external PLCs, such as Siemens and Mitsubishi systems, or microcontroller development boards for signal interaction and coordinated control exercises.



3. Maker Competitions and Multifunctional Demonstrations

Suitable for maker projects, robotics competitions and interactive demonstrations.

Potential project directions include writing, drawing, board-game demonstrations, vision-based recognition and sorting, and desktop palletizing challenges, subject to the corresponding end-effector, software and peripheral configurations.



4. Embedded Systems Research and Secondary Development

Suitable as a hardware platform for STM32 control algorithm validation, PC-based serial communication development and serial robot kinematics research.

Students and developers can use the robot to explore embedded control, communication protocols, coordinate transformations and multi-axis motion control.


Applications

Typical Teaching Experiments and Project Workflows


1. STM32 Embedded Control and Robot Kinematics

Use the PC-based teaching software and teach pendant to switch between joint and world coordinate systems.

Conduct practical exercises involving three-axis coordinated movement, position control and basic robot trajectory planning.



2. 4 DI / 4 DO Digital Signal Control

Learn how to use external PLC or microcontroller signals to trigger robot actions.

Practice reading external input signals and outputting robot operating status through the four digital input and four digital output channels.



3. Automatic Writing, Drawing and Palletizing Projects

Attach an appropriate pen or end effector to the robot arm to carry out drawing or pick-and-place demonstrations.

Use the supported linear and palletizing motion functions to conduct planar trajectory drawing and organized arrangement experiments.



4. Serial and Bluetooth Wireless Control Development

Use the Bluetooth interface or USB serial communication interface to develop PC-side control programs.

Explore PC-based or mobile-device control and data exchange according to the available communication protocol and software support.


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