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Educational Robots 4-Axis STM32 Educational Desktop Robot – Advanced Edition with 3D Printing & Laser Engraving
4-Axis STM32 Educational Desktop Robot – Advanced Edition with 3D Printing & Laser Engraving
4-Axis STM32 Educational Desktop Robot – Advanced Edition with 3D Printing & Laser Engraving
4-Axis STM32 Educational Desktop Robot – Advanced Edition with 3D Printing & Laser Engraving
4-Axis STM32 Educational Desktop Robot – Advanced Edition with 3D Printing & Laser Engraving
4-Axis STM32 Educational Desktop Robot – Advanced Edition with 3D Printing & Laser Engraving
4-Axis STM32 Educational Desktop Robot – Advanced Edition with 3D Printing & Laser Engraving
4-Axis STM32 Educational Desktop Robot – Advanced Edition with 3D Printing & Laser Engraving

4-Axis STM32 Educational Desktop Robot – Advanced Edition with 3D Printing & Laser Engraving

MODEL: ZK-bot402ed

Explore the ZEKEEP ZK-bot402ed 4-axis STM32 educational desktop robot with 3D printing and laser engraving modules. Designed for robotics programming, STEAM education and hands-on digital fabrication.

Payload

0.5 KG

Reach

340mm

Repeatability

±1mm

End Speed

-

Product Highlights

ZEKEEP 4-Axis STM32 Educational Desktop Robot – Advanced Edition

3D Printing × Laser Engraving × Robotics Programming — Bringing Creative Ideas from Design to Physical Production.

The ZEKEEP 4-Axis STM32 Educational Desktop Robot – Advanced Edition is a multifunctional desktop robotics platform designed for vocational education, STEAM education and robotics maker projects.

Built on the ZK-bot301 STM32 four-axis open-loop stepper motor robotic arm, this upgraded version extends the original robot motion control and point teaching capabilities with additional 3D printing and laser engraving functions.

It allows students to explore mechanical structures, embedded control, robot programming and creative fabrication using one integrated educational platform.

For mechanical control, the platform adopts a 3+1-axis configuration equipped with Size 42 stepper motors and precision spur-type planetary gearboxes. It supports point teaching, linear motion, linear offset and related trajectory control functions.

Combined with a 4.3-inch touchscreen teaching pendant and PC-based host software, students can conduct experiments involving joint movement, coordinate control, trajectory planning and external I/O integration.

For 3D printing applications, the platform provides open-structure design resources, including 3D model source files for the robotic arm, base, sensor brackets and various end-effectors.

Students can modify models, print components and assemble mechanical structures according to their project requirements, using PLA and other compatible materials for mechanical design and rapid prototyping exercises.

For laser engraving applications, the platform integrates a 500 mW blue-violet laser module and its associated control components. It supports pattern processing on compatible materials such as wood, leather and plastics.

Through the STM32-based control platform and graphical or code-based programming, students can explore laser engraving algorithms, processing path planning and motion control.

Compared with conventional desktop robots designed primarily for motion demonstrations, this upgraded edition connects robotic control with digital fabrication.

Students can go beyond learning how to control a robot arm by designing mechanical structures, producing 3D-printed parts and creating laser-engraved projects.

The platform is suitable for robotics education, STEAM maker programs, vocational intelligent manufacturing training and school-based curriculum development, providing equipment support for integrated learning from programming to physical fabrication.


Key Features and Advantages

1 Four-Axis STM32 Control Platform for Robotics Fundamentals

Combine mechanical structures, embedded control and motion programming.

Built on the ZK-bot301 four-axis STM32 desktop robotic arm, the platform uses Size 42 stepper motors and precision planetary gearboxes.

It supports joint movement, point teaching, linear motion and related trajectory control functions.

Students can conduct robotic control experiments using the touchscreen teaching pendant and PC-based host software, learning the relationship between mechanical transmission, motor driving and embedded programming.


2 3D Printing Expansion for Custom Robotic Structure Design

Go from 3D modeling to physical component production.

The platform provides 3D model source files covering the robotic arm, base, sensor brackets and various end-effector designs.

Students can print related components, complete mechanical assemblies, replace parts and modify structures according to project requirements.

This approach helps learners understand the relationship between robotic mechanical design and digital fabrication.


3 Laser Engraving Module for Digital Fabrication Projects

Combine graphic design with robotic motion to create physical projects.

The platform integrates a 500 mW blue-violet laser module for engraving compatible materials, including wood, leather and other suitable materials.

Through graphical and code-based programming, learners can design patterns, adjust processing paths and control the robotic arm to perform corresponding movements.


4 Graphical and Code-Based Programming for Different Learning Levels

Progress from visual programming to practical software development.

The accompanying programming software supports both graphical and code-based programming approaches, accommodating students with different levels of programming experience.

Beginners can use graphical programming to understand robotic motion logic, while advanced learners can explore C/C++, Arduino and related development technologies for programming and secondary development.

Actual supported interfaces and programming capabilities depend on the supplied software and hardware configuration.


5 Open-Structure Design for Customization and Modification

Encourage independent design, prototyping and engineering exploration.

The platform provides 3D model source files for the robotic arm, base, sensor brackets and various end-effector designs, supporting custom printing and structural modifications.

Students can adapt mechanical designs to different project requirements and produce customized components, developing practical engineering design and innovation skills.


6 Integration of Robotic Motion Control and Digital Fabrication

Connect embedded development, motion control and physical manufacturing.

Through the STM32 control platform, students can explore stepper motor driving, motion commands, path planning and I/O signal interaction.

By incorporating 3D printing and laser engraving, learners can understand how programmed robotic movements are translated into practical fabrication processes.

This provides an integrated workflow from control programming to physical production.


7 Diverse Practical Projects for STEAM and Maker Education

From basic robotics experiments to integrated creative manufacturing.

The platform supports teaching projects involving robotic arm assembly, stepper motor control, structural component printing, laser pattern engraving and integrated creative design.

It is suitable for robotics interest courses, STEAM education, maker competitions and school-based curriculum development, helping students develop computational thinking and engineering practice skills.


8 Supporting Educational Resources for Practical Teaching

Combine equipment, laboratory guides and project resources.

Supporting educational resources include laboratory manuals, project libraries, source code, assembly tutorials and teacher training services.

These resources help educators organize practical coursework according to teaching objectives and support classroom instruction, innovation projects and student robotics activities.

Actual resource availability and service scope are subject to the confirmed delivery package.


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Frequently Asked Questions (FAQ)


1 What makes this product different from a standard four-axis STM32 desktop robot?

This advanced edition is built on a four-axis STM32 desktop robotic arm and adds 3D printing and laser engraving capabilities to the existing motion control and point teaching functions.

It supports integrated practical learning in robot programming, mechanical design and digital fabrication.


2 What control system does the robotic arm use?

The robotic arm uses an STM32-based control platform and supports open-loop stepper motor control, touchscreen teaching and PC-based communication control.

It also provides DI / DO digital interfaces for external signal interaction.


3 What are the payload and working range of the robotic arm?

The basic robotic arm has a reference rated payload of 0.5 kg, a maximum reach of approximately 400 mm, a horizontal reach of 340 mm and repeatability of 1 mm.


4 What is the 3D printing module used for?

The 3D printing module is designed for custom robotic component production, model modification, part printing and assembly practice.

The platform provides 3D model source files for the robotic arm, base, sensor brackets and various end-effector designs, allowing students to develop and modify components according to project requirements.


5 What materials are compatible with the laser engraving module?

The documented material options include wood, leather and compatible plastics.

Material compatibility should be confirmed according to the laser wavelength, processing parameters and material safety requirements.

Not all plastics are suitable for laser processing.


6 What is the power rating of the laser engraving module?

The supplied kit documentation specifies a 500 mW blue-violet laser module operating at 12V DC, with a 12V / 5A power adapter and associated control components.


7 Which programming methods are supported?

The accompanying software supports graphical and code-based programming.

The platform can also be used in learning projects involving STM32, C/C++, Arduino, PLC-related technologies and hardware/software development, subject to the actual interfaces and configuration.


8 Which educational courses is this product suitable for?

It is suitable for robotics control, embedded development, mechanical design, 3D printing, laser engraving, STEAM education and maker projects.


9 Are educational resources included?

The supporting materials may include laboratory manuals, project libraries, source code, assembly tutorials and teacher training services.

The exact resources and services included are subject to the confirmed purchase configuration.


10 Does the platform support secondary development?

Yes. The platform uses an STM32-based control architecture and provides 3D model source files for robotic structures.

Students can explore structural modifications, motion path development, engraving algorithms and related control programming according to the available interfaces and project resources.


Product Selection and Consultation


To better match the platform with specific educational requirements, we recommend confirming the following before selection:

  • Teaching Objectives: Robotics control, embedded development, 3D printing, laser engraving or integrated digital fabrication.

  • Basic Configuration: Four-axis STM32 robotic arm, touchscreen teaching pendant, power supply and related control components.

  • 3D Printing Requirements: Whether printing control components, structural model source files and related accessories are required.

  • Laser Engraving Requirements: Laser module power, processing materials, engraving area and protective equipment.

  • Software Requirements: Graphical programming, C/C++, Arduino, PLC-related applications and available secondary development interfaces.

  • Educational Resources: Laboratory manuals, project examples, source code, assembly tutorials and teacher training.

Based on the curriculum and student learning levels, a progressive learning pathway can be designed, covering basic robotic arm control, 3D printing, laser engraving and integrated creative manufacturing projects.


Specifications

1. Core Technical Specifications

1.1 Four-Axis STM32 Robotic Arm Specifications


ParameterSpecification
Product Name4-Axis STM32 Educational Desktop Robot
Base Robotic Arm ModelZK-bot301
Robot Structure4-axis desktop robotic arm with open-loop stepper motors
Degrees of Freedom (DOF)3+1 axes
Maximum Rated Payload0.5 kg
Maximum ReachApprox. 400 mm
Horizontal Reach340 mm
Repeatability1 mm
Maximum Motion SpeedAdjustable, up to 120°/s
A1 Axis (Base) Motion Range-160° to +160° (with an approximately 40° reserved dead zone)
A2 Axis (Upper Arm) Motion Range-100° to 0°
A3 Axis (Forearm) Motion Range-115° to 0°
Drive MotorSize 42 stepper motor
Motor ControlTwo-phase open-loop control
Step Angle1.8°
Rated Current2 A
Holding Torque0.6 N·m
Reduction MechanismHigh-precision spur-type planetary gearbox
Gearbox BacklashLess than 15 arcmin
BrakeNot equipped
EncoderNot equipped
Robotic Arm WeightApprox. 6 kg
Robotic Arm Material6061 aluminum alloy with anodized finish
Base MaterialWeighted sheet-metal structure
Control Box MaterialSheet metal
Base Dimensions220 × 220 mm
Operating Temperature-10°C to +60°C
Power InputDC 24V / 8A


1.2 Robotic Arm Motion Control and Functions

ParameterSpecification
ControllerSTM32
Control MethodOpen-loop stepper motor control
Point TeachingSupported
Teaching Point StorageUp to 50 teaching points
Motion RecipesSupports 3 operating recipes
Maximum Steps per RecipeUp to 50 steps
Joint Coordinate SystemSupported
World Coordinate SystemSupported
Point-to-Point MotionSupported
Linear MotionSupported
Linear OffsetSupported
Palletizing TrajectorySupported by the base version
Motion AlgorithmsLinear interpolation and acceleration/deceleration algorithms
Speed AdjustmentSupported
Digital Inputs (DI)4 channels
Digital Outputs (DO)4 channels
Communication InterfacesSerial, RS485 / CAN and other interfaces, depending on the actual configuration
External Device IntegrationSupports control interaction with external devices through I/O signals
Teaching MethodsTouchscreen teaching and PC communication control
End EffectorCustomizable according to application requirements, including vacuum suction cups and electric grippers


1.3 Touchscreen Teaching Pendant Specifications

ParameterSpecification
Display TypeTFT Color Touchscreen
Screen Size4.3 inches
Resolution480 × 272
Touchscreen Type4-Wire Resistive Touchscreen
Display Panel Dimensions130 × 104 mm
Mounting Cutout Dimensions120 × 93 mm
CPUARM, 600 MHz
Storage Capacity64 MB
Input Voltage24V ±20% DC
USB Interface1 × USB Host
Serial InterfaceSerial communication supported
Coordinate DisplayDisplays robotic arm coordinates and motion status
Speed AdjustmentAdjustable robot motion speed
Teaching FunctionsPoint recording, editing and execution


1.4 3D Printing Expansion Module Specifications

ParameterSpecification
Module NameSTM32 Educational Desktop Robot 3D Printing Expansion Module
Main FunctionSupports 3D printing and digital fabrication projects in combination with the four-axis robotic arm
DesignOpen-structure design
Model ResourcesRobot 3D model source files provided
Model ContentsRobotic arm, base, sensor brackets and multiple end-effector designs
Recommended Printing MaterialPLA
Structural FeaturesDesigned for printing, assembly and secondary development
Educational ApplicationsMechanical design, motion control, additive manufacturing and embedded development
Secondary DevelopmentSupports structural and program modifications according to teaching requirements
Main ApplicationsRobotic structural component printing, innovative design and functional prototyping


1.5 Laser Engraving Expansion Module Specifications

ParameterSpecification
Module NameSTM32 Laser Engraving Expansion Module
Laser TypeBlue-Violet Laser Module
Laser Power500 mW
Laser Power SupplyDC 12V
Power Adapter12V / 5A
Control MethodSTM32-based control platform with relay control
Intermediate RelaySchneider RXM2LB2BD
Relay Specifications8-pin, DC 24V / 5A, with socket
Power ConnectorDC 5.5 × 2.1 mm
Power Cable Configuration15 cm female cable and 1 m male cable
Compatible MaterialsWood, leather and compatible plastics
Main FunctionsGraphic engraving, pattern processing and motion path control
Secondary DevelopmentSupports engraving algorithm and motion path planning development
Programming MethodsGraphical programming and code-based programming

The suitability of engraving materials depends on the laser wavelength, material composition and processing conditions. Confirm material compatibility and required laser safety measures before use.


1.6 Complete System Components and Upgrade Configuration

ComponentFunction
4-Axis STM32 Robotic ArmProvides basic joint movement, trajectory control and a platform for processing-related motion
STM32 Main Control SystemHandles motor control, motion command execution and external signal interaction
Touchscreen Teaching PendantUsed for robotic arm point teaching, parameter adjustment and motion control
Size 42 Stepper MotorsDrive the robotic arm joints
Precision Planetary GearboxesWork with the stepper motors to provide mechanical transmission
3D Printing Expansion ComponentsSupport robotic structural component printing, mechanical assembly and digital fabrication projects
3D Printing Control and Drive ComponentsProvide control and drive functions for 3D printing operations
Laser Engraving Module500 mW blue-violet laser module for surface pattern engraving on compatible materials
Laser Power Adapter12V / 5A power supply for the laser module
Intermediate RelayProvides electrical switching control for the laser module
Power Supplies and Connection CablesProvide power and electrical connections for the expansion modules
Educational ResourcesLaboratory manuals, project examples, source code and assembly tutorials

The included components depend on the actual package configuration. Please confirm which items are standard accessories and which are optional before ordering.


Dimensions



Product Dimensions

  • Maximum Reach: Approx. 400 mm

  • Horizontal Reach: 340 mm

  • Base Dimensions: 220 × 220 mm

  • Robotic Arm Weight: Approx. 6 kg

  • Packaging Dimensions: Approx. 355 × 305 × 335 mm (Reference dimensions for the basic robotic arm package)

  • Installation Method: Desktop mounting

The product features a desktop integrated robotic arm structure and supports the installation of different functional modules according to teaching requirements.

Based on the basic four-axis robotic arm, the addition of 3D printing and laser engraving modules allows students to explore digital fabrication and creative engineering projects.

The actual working envelope and installation dimensions depend on the selected end-effector modules and worktable layout.




Industries

Applicable Industries and Application Areas

1 Secondary Vocational Education and Technical Training

Suitable for educational programs in industrial robotics, mechatronics, intelligent manufacturing, embedded systems and automation.

Through experiments involving robotic arm control, 3D printing, laser engraving and programming, students can connect knowledge of mechanical structures, motion control and digital fabrication.


2 Higher Vocational Colleges and Applied Universities

Suitable for practical courses in robotics engineering, mechanical design, automation and intelligent manufacturing.

Students can explore STM32 control, stepper motor driving, motion trajectory planning and digital fabrication, developing an integrated understanding of hardware structures and control programming.


3 STEAM Education and Maker Laboratories

Suitable for STEAM courses, robotics maker education and interdisciplinary practical activities.

Combining 3D printing and laser engraving, students can progress from mechanical structure design and model development to physical manufacturing, experiencing the workflow from digital design to finished creations.


4 Artificial Intelligence and Embedded Development Laboratories

Suitable for teaching STM32 embedded control, C/C++, Arduino, PLC-related technologies and hardware/software development.

Students can explore robotic motion control, external I/O signals, sensor integration and module expansion through secondary development projects, understanding the relationship between embedded systems and robotic mechanisms.


5 Robotics Competitions and Innovative Design

Suitable for school-level and inter-school robotics competitions, maker challenges and engineering innovation projects.

Through robotic arm modifications, 3D-printed component design, laser-engraved projects and program debugging, students can complete a variety of themed robotics projects.


6 Digital Fabrication and Prototyping

Suitable for small-scale product prototyping, mechanical structure validation, personalized pattern engraving and creative product development.

With the 3D printing and laser engraving expansion modules, students can turn digital designs, mechanical structures and motion paths into physical creations.


Applications

Typical Teaching and Laboratory Projects

1 Four-Axis STM32 Robotic Arm Structure and Assembly

Identify the robotic arm base, links, joints, motors and reduction mechanisms, and understand the mechanical transmission structure and motion relationships between joints.

Through equipment assembly and debugging, students learn the basic structure and hardware components of a robotic arm.


2 STM32 Embedded Control and Motor Driving

Use the STM32 control platform to learn stepper motor driving, pulse control, motion commands and basic communication.

With programming methods such as C/C++, students can develop and debug basic robotic arm joint control programs.


3 Robot Kinematics and Coordinate-Based Motion Control

Learn about joint coordinate systems and world coordinate systems, and understand the relationship between end-effector positioning and joint movement.

Through point setting, coordinate adjustment and trajectory control, students can develop practical skills in basic robotic motion control.


4 Point Teaching and Trajectory Planning

Use the touchscreen teaching pendant and PC-based host software to record, edit and execute teaching points.

Explore point-to-point motion, linear motion and linear offset functions to develop motion paths and action sequences.


5 3D Design of Robotic Structural Components

Use the supplied 3D robot model source files to learn mechanical component design and model modification.

Students can modify the robotic arm, base, sensor brackets and end-effector structures according to teaching requirements, then manufacture physical parts through 3D printing.


6 3D Printing and Robotic Assembly

Use PLA and other compatible printing materials to produce structural components, assemble parts and verify their functions.

Through practical assembly, students explore printing dimensions, component fitting, mechanical connections and structural improvements.


7 Laser Engraving and Pattern Processing

Design patterns using graphical software or code-based programming, then use the laser engraving module to process compatible materials such as wood and leather.

Learn the relationship between graphic data, processing paths and robotic motion.


8 Laser Engraving Motion Path Planning

Use the open STM32-based control platform to explore engraving path planning, motion command configuration and processing workflow debugging.

By modifying patterns and path parameters, students learn how digital graphics are converted into executable robotic motion trajectories.


9 Robotic I/O and External Device Integration

Use the 4-channel DI / 4-channel DO digital interfaces to conduct external signal triggering, output-state control and equipment integration experiments.

Combined with sensors, actuators and related automation equipment, students can learn how robots exchange signals with peripheral hardware.



10 Integrated STEAM Creative Manufacturing Project

Combine robotic arm programming, 3D printing, laser engraving and structural design to complete an integrated project from concept development and model creation to physical fabrication.

For example, students can design and print customized robotic components, use the laser engraving module to add patterns, and assemble the components into functional creative projects.


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