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
-
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.
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.
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.
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.
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.
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.
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.
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.
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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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.
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.
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.
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.
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.
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.
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.
It is suitable for robotics control, embedded development, mechanical design, 3D printing, laser engraving, STEAM education and maker projects.
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.
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.
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.
| Parameter | Specification |
|---|---|
| Product Name | 4-Axis STM32 Educational Desktop Robot |
| Base Robotic Arm Model | ZK-bot301 |
| Robot Structure | 4-axis desktop robotic arm with open-loop stepper motors |
| Degrees of Freedom (DOF) | 3+1 axes |
| Maximum Rated Payload | 0.5 kg |
| Maximum Reach | Approx. 400 mm |
| Horizontal Reach | 340 mm |
| Repeatability | 1 mm |
| Maximum Motion Speed | Adjustable, 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 Motor | Size 42 stepper motor |
| Motor Control | Two-phase open-loop control |
| Step Angle | 1.8° |
| Rated Current | 2 A |
| Holding Torque | 0.6 N·m |
| Reduction Mechanism | High-precision spur-type planetary gearbox |
| Gearbox Backlash | Less than 15 arcmin |
| Brake | Not equipped |
| Encoder | Not equipped |
| Robotic Arm Weight | Approx. 6 kg |
| Robotic Arm Material | 6061 aluminum alloy with anodized finish |
| Base Material | Weighted sheet-metal structure |
| Control Box Material | Sheet metal |
| Base Dimensions | 220 × 220 mm |
| Operating Temperature | -10°C to +60°C |
| Power Input | DC 24V / 8A |
| Parameter | Specification |
|---|---|
| Controller | STM32 |
| Control Method | Open-loop stepper motor control |
| Point Teaching | Supported |
| Teaching Point Storage | Up to 50 teaching points |
| Motion Recipes | Supports 3 operating recipes |
| Maximum Steps per Recipe | Up to 50 steps |
| Joint Coordinate System | Supported |
| World Coordinate System | Supported |
| Point-to-Point Motion | Supported |
| Linear Motion | Supported |
| Linear Offset | Supported |
| Palletizing Trajectory | Supported by the base version |
| Motion Algorithms | Linear interpolation and acceleration/deceleration algorithms |
| Speed Adjustment | Supported |
| Digital Inputs (DI) | 4 channels |
| Digital Outputs (DO) | 4 channels |
| Communication Interfaces | Serial, RS485 / CAN and other interfaces, depending on the actual configuration |
| External Device Integration | Supports control interaction with external devices through I/O signals |
| Teaching Methods | Touchscreen teaching and PC communication control |
| End Effector | Customizable according to application requirements, including vacuum suction cups and electric grippers |
| Parameter | Specification |
|---|---|
| Display Type | TFT Color Touchscreen |
| Screen Size | 4.3 inches |
| Resolution | 480 × 272 |
| Touchscreen Type | 4-Wire Resistive Touchscreen |
| Display Panel Dimensions | 130 × 104 mm |
| Mounting Cutout Dimensions | 120 × 93 mm |
| CPU | ARM, 600 MHz |
| Storage Capacity | 64 MB |
| Input Voltage | 24V ±20% DC |
| USB Interface | 1 × USB Host |
| Serial Interface | Serial communication supported |
| Coordinate Display | Displays robotic arm coordinates and motion status |
| Speed Adjustment | Adjustable robot motion speed |
| Teaching Functions | Point recording, editing and execution |
| Parameter | Specification |
|---|---|
| Module Name | STM32 Educational Desktop Robot 3D Printing Expansion Module |
| Main Function | Supports 3D printing and digital fabrication projects in combination with the four-axis robotic arm |
| Design | Open-structure design |
| Model Resources | Robot 3D model source files provided |
| Model Contents | Robotic arm, base, sensor brackets and multiple end-effector designs |
| Recommended Printing Material | PLA |
| Structural Features | Designed for printing, assembly and secondary development |
| Educational Applications | Mechanical design, motion control, additive manufacturing and embedded development |
| Secondary Development | Supports structural and program modifications according to teaching requirements |
| Main Applications | Robotic structural component printing, innovative design and functional prototyping |
| Parameter | Specification |
|---|---|
| Module Name | STM32 Laser Engraving Expansion Module |
| Laser Type | Blue-Violet Laser Module |
| Laser Power | 500 mW |
| Laser Power Supply | DC 12V |
| Power Adapter | 12V / 5A |
| Control Method | STM32-based control platform with relay control |
| Intermediate Relay | Schneider RXM2LB2BD |
| Relay Specifications | 8-pin, DC 24V / 5A, with socket |
| Power Connector | DC 5.5 × 2.1 mm |
| Power Cable Configuration | 15 cm female cable and 1 m male cable |
| Compatible Materials | Wood, leather and compatible plastics |
| Main Functions | Graphic engraving, pattern processing and motion path control |
| Secondary Development | Supports engraving algorithm and motion path planning development |
| Programming Methods | Graphical 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.
| Component | Function |
|---|---|
| 4-Axis STM32 Robotic Arm | Provides basic joint movement, trajectory control and a platform for processing-related motion |
| STM32 Main Control System | Handles motor control, motion command execution and external signal interaction |
| Touchscreen Teaching Pendant | Used for robotic arm point teaching, parameter adjustment and motion control |
| Size 42 Stepper Motors | Drive the robotic arm joints |
| Precision Planetary Gearboxes | Work with the stepper motors to provide mechanical transmission |
| 3D Printing Expansion Components | Support robotic structural component printing, mechanical assembly and digital fabrication projects |
| 3D Printing Control and Drive Components | Provide control and drive functions for 3D printing operations |
| Laser Engraving Module | 500 mW blue-violet laser module for surface pattern engraving on compatible materials |
| Laser Power Adapter | 12V / 5A power supply for the laser module |
| Intermediate Relay | Provides electrical switching control for the laser module |
| Power Supplies and Connection Cables | Provide power and electrical connections for the expansion modules |
| Educational Resources | Laboratory 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.
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.


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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Leave your contact information and requirements. Based on the product specifications and application scenarios, we will provide preliminary selection and solution advice.