DIY 3DOF Arm Manipulator Kit | Robotics Kit Without Servo Motors

Key Features

1. 3 Degrees of Freedom (DOF):
   • Base rotation
   • Shoulder joint movement
   • Elbow joint movement
2. Construction Material:
   • High-strength aluminum alloy for the main frame.
   • ABS or acrylic parts are needed for additional support (depending on the kit).
3. Servo Motors:
   • Number of Servos: 3 High-Torque Servos (one for each axis).
   • Typical Servos Used:
     • MG996R / MG995 Servo for heavy load joints (torque ~ 10-15 kg·cm).
     • SG90 Micro Servo for smaller joints if applicable.
   • Operating Voltage: 4.8V – 6.6V
   • Features: Metal gear servos for durability and precision.
4. Base Plate:
   • Material: Acrylic/metal with pre-drilled mounting holes.
   • Stable design to prevent wobbling during operation.
5. End Effector (Gripper):
   • Servo-powered mechanical gripper to pick up objects.
   • Adjustable claw width: typically 0-55mm.
6. Control System:
   • Compatible Microcontrollers: Arduino Uno, Mega, or Raspberry Pi.
   • Control Input:
     • Joystick module for manual control.
     • Option for pre-programmed control via software.
   • Communication:
     • USB interface for PC programming.
     • PWM control for servo motors.
7. Power Requirements:
   • External power source: 6V to 7.4V (for servos).
   • Optional battery pack for portable operation.
   • Payload Capacity:
     • Up to 300g depending on the servo motor power.
8. Arm Dimensions:
   • Base Diameter: ~12-15cm
   • Arm Length: ~20-30cm (combined shoulder and elbow segments).
   • Height: ~30-35cm (when fully extended).
9. Assembly:
   • Pre-drilled and labeled parts for easy assembly.
   • Includes all mounting screws, brackets, and tools required.
   • Instruction manual with step-by-step assembly diagrams.
10. Applications:
    • Robotics education and training.
    • DIY and STEM projects.
    • Automation simulation and hobby applications.
11. Weight:
    • Kit weight: ~1.5-2 kg (depending on material).

Package Contents:

1. Aluminum frame parts (pre-cut and labeled)
2. Mechanical gripper
3. Base mounting plate
4. Servo brackets and screws

DIY 3DOF Arm Manipulator Optional Upgrades:

• 4DOF Configuration: Additional servo for wrist movement.
• Wireless Control Module: Bluetooth or Wi-Fi module.
• Sensors: IR or ultrasonic sensors for obstacle avoidance.

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DIY 3DOF Arm Manipulator Kit | Robotics Kit Without Servo Motors
darazsales

50mm Stroke Electric Push Rod | 500N NEMA17 Stepper Actuator DC 6V-24V

The Stroke Length 50mm Electric Push Rod is a compact and high-performance linear actuator designed for automation and mechanical applications. With a force capacity of 500N, a speed of 10mm/s, and compatibility with NEMA17 stepper motors, this push rod is ideal for robotics, CNC machines, and custom automation projects. Powered by DC 6V-24V, it ensures precision, strength, and reliability in compact applications

Specification for Electric Push Rod (Linear Actuator)

1. General Information

• Type: NEMA17 Stepper Motor Integrated Electric Push Rod (Linear Actuator)
• Stroke Length: 50 mm
• Push/Pull Force: 500 N (50 kg)
• Speed: 10 mm/s
• Voltage Input: DC 6V to 24V

2. Stepper Motor Parameters (NEMA 17)

• Motor Type: Bipolar Stepper Motor
• Step Angle: 1.8° (200 steps per revolution)
• Rated Voltage: 6V to 24V (compatible with various drivers)
• Current Per Phase: 1.2A to 2.0A (based on application)
• Holding Torque: Approximately 40 – 45 N·cm
• Phase Resistance: 1.5 to 2.0 ohms
• Inductance: 2.5 to 4.0 mH

3. Linear Actuator Parameters

• Stroke Length: 50 mm
• Push/Pull Force: 500 N (maximum)
• Travel Speed: 10 mm/s (under no load, may vary slightly with load)
• Lead Screw Type: Trapezoidal Thread (e.g., T8x2 or T8x4)
• Screw Lead: 2 mm to 4 mm per revolution
• Backlash: ≤ 0.05 mm
• Self-locking: Yes, due to lead screw design

4. Mechanical Properties

• Material:
  • Push Rod: Stainless Steel or Aluminum Alloy
  • Housing: Anodized Aluminum Alloy
• Maximum Load: 500 N
• Mounting Bracket Options: Front and rear clevis brackets (standard)
• Duty Cycle: 20% (maximum 2 minutes continuous operation within 10 minutes)
• Noise Level: ≤ 55 dB (at 1 meter distance)
• Life Span: 100,000 cycles under rated load

5. Electrical Properties

• Current Draw: Varies with load and voltage (typical range: 1.5A to 3A)
• Drive Type: Microstepping Driver (recommended for smooth operation)
• Control Mode: Step and Direction Signals (pulse-based control)

6. Environmental Specifications

• Operating Temperature: -10°C to 50°C
• Storage Temperature: -20°C to 60°C
• Protection Level: IP54 (standard) / Optional IP65 for dust and water resistance
• Vibration Resistance: Complies with IEC 60068-2-6

7. Applications

• CNC Machines
• Robotics
• Precision Automation Systems
• Adjustable Mechanisms
• Laboratory and Medical Equipment
• Linear Motion Systems

8. Dimensions

• Motor Size: NEMA 17 (42 mm x 42 mm)
• Overall Length: Varies based on stroke and configuration (~150 mm to 200 mm)
• Mounting Interface: 4 x M3 or M4 holes at NEMA 17 faceplate
• Rod Diameter: 8 mm (typical)
• End Connectors:
  • Standard Clevis Mount
  • Threaded Rod End (optional)

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50mm Stroke Electric Push Rod | 500N NEMA17 Stepper Actuator
darazsales

NEMA17 17HS3401S Stepper Motor

The NEMA17 17HS3401S Stepper Motor offers high precision and reliable performance with a 1.8-degree step angle. Ideal for 3D printers, CNC machines, and robotics, this motor provides high torque and smooth movement, making it a popular choice for precision control applications.

Specifications:

• Step Angle: 1.8° per step
• Number of Phases: 2
• Rated Voltage: 2.5V
• Current per Phase: 1.7A
• Resistance per Phase: 1.5 Ohms
• Inductance per Phase: 3.2mH ± 20% (1kHz)

Mechanical Specifications:

• Holding Torque: 45Ncm (450mNm or 63.74 oz-in)
• Rotor Inertia: 54g.cm²
• Number of Leads: 4 (Bipolar configuration)
• Lead Length: Typically 1 meter or 1.2 meters (can vary by manufacturer)
• Step Accuracy: ±5%
• Frame Size: NEMA 17 (42mm x 42mm)
• Body Length: 34mm
• Shaft Diameter: 5mm
• Shaft Length: 20mm (approx.)
• Mounting Holes: 4 holes spaced 31mm apart (center-to-center)
• Weight: Approx. 280g

Thermal & Environmental Specifications:

• Max Operating Temperature: 80°C
• Insulation Class: Class B (80°C max rise)
• Ambient Temperature Range: -20°C to +50°C
• Insulation Resistance: 100MΩ (500V DC)
• Dielectric Strength: 500V AC for 1 minute

Wiring Configuration:

1. Red – Phase A+
2. Blue – Phase A-
3. Green – Phase B+
4. Black – Phase B

Datasheet : 17HS NEMA17 Stepper Motor

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NEMA17 17HS3401S Stepper Motor
darazsales

2V-40V 10A DC Motor PWM Speed Control with Potentiometer Switch Module

The 2V-40V 10A DC Motor PWM Speed Control Module with Potentiometer Switch offers precise control over motor speed with pulse width modulation (PWM). This versatile module supports motors up to 10A, making it suitable for various DC motor applications. The potentiometer switch allows for easy adjustment of motor speed, perfect for DIY projects and industrial motor control systems

Specifications:

• Input Voltage Range: 2V to 40V DC
• Input Current: Maximum 10A (depending on the motor load)

2. Output Specifications:

• Output Voltage: Continuously adjustable (based on input voltage)
• Output Current: Maximum 10A
• PWM Duty Cycle: Adjustable from 10% to 100%
• PWM Frequency: 13 kHz (typical)

3. Control:

• Control Type: Pulse Width Modulation (PWM)
• Speed Control: Adjustable via potentiometer
• Switch Type: Integrated potentiometer switch (on/off control)

4. Protection:

• Overload Protection: None (external fuse may be required for safety)
• Reverse Polarity Protection: Generally not included (add external diode if needed)

5. Power Consumption:

• No-load Power Consumption: Low, typically less than 10 mA

6. Physical Characteristics:

• Board Dimensions: Approximately 50mm x 32mm x 15mm
• Weight: Typically around 20 grams

7. Operating Environment:

• Operating Temperature: -20°C to +55°C
• Humidity: Up to 90% non-condensing

8. Applications:

• DC motor speed control (e.g., fans, pumps, robotics)
• Lighting dimmer for DC LED lighting systems
• Power control for DC heaters or devices within the input range

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2V-40V 10A DC Motor PWM Speed Control with Potentiometer Switch Module
darazsales

Hollow Shaft JGY370 High Torque Self-locking Strong Wheel Turbine Worm Reduction Motor

The JGY370 Worm Gear Motor High Torque Self-locking Worm Gear Reduction Motor is widely used for projects requiring high torque at low speeds. It features a worm gear mechanism that provides self-locking capabilities, which means the motor won’t back drive when powered off.

Specifications:

• Motor Type: Brushed DC Motor with Worm Gear Reduction
• Shaft Type: Hollow Shaft (some models have solid or D-shaped shafts)
• Shaft Diameter: 6 mm
• Shaft Length: Typically 10 – 25 mm (depending on the specific model)
• Motor Size (Body): 32 mm diameter, approximately 56 mm length
• Mounting Hole Distance: 47 mm (typically)

Electrical Specifications:

• Voltage Range: 6V to 24V DC (common models use 6V, 12V, or 24V)
• Nominal Voltage: 12V DC (most commonly used voltage)
• No-Load Speed (depending on gear ratio):
  • 6 RPM, 10 RPM, 15 RPM, 20 RPM, 30 RPM, 60 RPM, 100 RPM, 200 RPM, 300 RPM, etc.
  • Speed depends on the gear ratio (typically ranges from 1:10 to 1:1000)
• Stall Current (12V): 0.3A to 2A (depending on load and model)
• Stall Torque (12V): 10 – 50 kg·cm (varies by model)

Gearbox Specifications:

• Gear Type: Worm Gear (provides self-locking feature)
• Reduction Ratio: Common ratios are 1:10, 1:30, 1:50, 1:100, and 1:300
• Self-Locking: Yes (due to the worm gear mechanism)

Mechanical Specifications:

• Output Shaft: Hollow Shaft (sometimes available with D-shaft or round shaft)
• Shaft Material: Typically steel
• Mounting Type: Face-mounted with 4 M3 threaded holes
• Weight: Approximately 150g – 200g

Performance:

• Torque Output: High torque at low speeds (depends on gear ratio)
• Efficiency: Moderate due to worm gear mechanics
• Self-Locking: Worm gear offers strong self-locking for load holding when power is off
• Noise Level: Relatively low
• Rotation: CW/CCW (clockwise and counterclockwise)

Applications:

• Used in projects like:
  • DIY robotics and automation
  • Wheel drives for small robots
  • Window and door actuators
  • Camera pan/tilt systems
  • Automatic curtains and gates

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Hollow Shaft JGY370 High Torque Self-locking Strong Wheel Turbine Worm Reduction Motor 6V 40RPM | 6V 150RPM | 12V 90RPM
darazsales

Round Shaft 775 High-Speed High Torque Dual Shaft DC Motor

The 775 Dual Shaft Motor is popular in various DIY and industrial applications due to its high speed and torque.

Specifications:

• Motor Type: Brushed DC Motor
• Shaft Type: Dual Shaft (can have both front and rear shafts)
• Shaft Diameter: 5 mm (can vary slightly)
• Motor Body Diameter: 42 mm (standard 775 motor size)
• Motor Length: Approximately 70 mm
• Mounting Hole Distance: 30 mm (approximately)

Electrical Specifications:

• Voltage Range: 6V to 24V DC (can vary by model)
• Nominal Voltage: 12V or 24V DC (commonly used voltages)
• No-Load Speed (12V): 8,000 – 12,000 RPM (can vary)
• No-Load Speed (24V): 16,000 – 24,000 RPM (can vary)
• Stall Current (12V): 6A to 10A (approximate)
• Stall Torque (12V): Around 1.2 Nm or higher

Mechanical Specifications:

• Output Shaft Length: Typically around 18 – 20 mm (can vary)
• Shaft Type: Round (with or without a flat side for set screws)
• Bearing Type: Ball bearings or sleeve bearings
• Rotation: CW/CCW (clockwise and counterclockwise)

Performance:

• Rated Torque: High torque, capable of handling moderate to heavy loads depending on the voltage
• Efficiency: Generally high for brushed motors
• Cooling: Usually air-cooled, with vent holes at the back

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Round Shaft 775 High-Speed High Torque Dual Shaft DC Motor 12V 6000RPM | 12V 10000RPM | 12V 12000RPM | 24V 10000RPM
darazsales

CW CCW Thruster Engine for DIY RC

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CW CCW Thruster Engine for DIY RC
lahiru Dhananjaya

Nema 17 step motor 23mm 0.42N.m 1.5A for 3D Print
lahiru Dhananjaya

Nema 34 Stepper Motor Driver Kit 12N.m 6.0A DM860S 2.4A-7.2A for 3D printer CNC Engraving Milling Machine

Introducing the Cloudray Nema 34 Stepper Motor Driver  a high-performance solution engineered to provide unparalleled precision and reliability for your industrial automation requirements. This motor is designed to deliver exceptional performance, ensuring optimal functionality and efficiency. Trust in the Motor to meet your automation needs with ease.

• • Current / Phase: 6.0A
  • Holding Torque: 12N.m
  • Step Angle(degrees): 1.8°±5%
  • Phase: 2
  • Model Number: 34CS120FK-600
  • Type: HYBRID
  • Certification: ce,ROHS
  • Brand Name: Cloudray
  • Origin: Mainland China
  • Driver Power Supply: AC/DC
  • Model Number: DM860S

DM860S:

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Cloudray Nema 34 Stepper Motor Driver
lahiru Dhananjaya

ULN2003 Stepper Motor Driver For Arduino

• ULN2003A motor driver chip
• Chip all the pins already leads for easy connection to use
• 5-12V power supply
• 4-way signal indicator
• XH-5P socket can be connected directly 28BYJ-48 Model stepper motor

High-power ULN2003 Stepper Motor Driver Board Test Module For Arduino AVR SMD.

ULN2003 Stepper Motor Driver Board uses the ULN2003 DARLINGTON ARRAYS to drive the 4-phase 5-wire stepper motor (5v-12v).

It’s easy to use Arduino or another development platform to drive the stepper motor by this diver board.

The5 Line 4 Phasecan be driven by ordinaryULN2003chip can also be connected in phase 2 development board used for supporting the use of a direct plug and easy to use stepper motor used in the development board.A, B, C, D four-phase LED indicates the status of the stepper motor work.

ULN2003 Stepper Motor Driver For Arduino
lahiru Dhananjaya