Openbuilds Big V Slot Wheel Kit

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Wheel diameter

25mm

Wheel thickness

10mm

Axle diameter

8mm

Bearing type

High-quality, low-friction bearings

Material

High-strength aluminum and stainless steel

Compatible rail size

Openbuilds V-slot rails (20x40, 20x60, and 20x80)

Conclusion

The Openbuilds Big V Slot Wheel Kit is a precision-engineered component designed to provide reliable and efficient linear motion in various applications. With its high-quality bearings, precision-machined wheels, and sturdy axles, this kit is an ideal solution for users seeking to build and customize projects with accuracy and repeatability.

Pin Configuration

Openbuilds Big V Slot Wheel Kit Documentation
Pinout Explanation
The Openbuilds Big V Slot Wheel Kit is a popular IoT component used in various automation and robotics projects. The kit consists of a wheel assembly with an integrated encoder and a connector with several pins. Below is a detailed explanation of each pin and how to connect them:
Pin 1: GND (Ground)
Function: Provides a common ground connection for the encoder and other components.
Connection: Connect to the ground pin of your microcontroller, power supply, or other components that require a ground connection.
Pin 2: VCC (Power Supply)
Function: Supplies power to the encoder and other components in the wheel kit.
Connection: Connect to the VCC pin of your microcontroller or a suitable power supply (typically 5V or 3.3V). Ensure the power supply voltage matches the recommended voltage for the wheel kit.
Pin 3: A (Encoder Channel A)
Function: Provides one of the two quadrature encoder signals (Channel A) used to determine the wheel's rotation speed and direction.
Connection: Connect to a digital input pin on your microcontroller, such as an interrupt-capable pin, to read the encoder signal.
Pin 4: B (Encoder Channel B)
Function: Provides the second quadrature encoder signal (Channel B) used to determine the wheel's rotation speed and direction.
Connection: Connect to a digital input pin on your microcontroller, such as an interrupt-capable pin, to read the encoder signal.
Pin 5: Index (Encoder Index Signal)
Function: Provides a single pulse per revolution, indicating the wheel's absolute position.
Connection: Connect to a digital input pin on your microcontroller to read the index signal.
Pin 6: N/C (Not Connected)
Function: This pin is not connected internally and should be left unconnected.
Connection Structure:
To connect the Openbuilds Big V Slot Wheel Kit to your microcontroller or other components, follow this structure:
Connect Pin 1 (GND) to the ground pin of your microcontroller or power supply.
Connect Pin 2 (VCC) to the VCC pin of your microcontroller or a suitable power supply.
Connect Pin 3 (A) to a digital input pin on your microcontroller (e.g., D2).
Connect Pin 4 (B) to a digital input pin on your microcontroller (e.g., D3).
Connect Pin 5 (Index) to a digital input pin on your microcontroller (e.g., D4).
Note:
Ensure the power supply voltage matches the recommended voltage for the wheel kit.
Use suitable wiring and connectors to connect the pins to your microcontroller or other components.
Consult the datasheet and documentation for your specific microcontroller and wheel kit for specific connection requirements and details.
By following this pinout explanation and connection structure, you can successfully integrate the Openbuilds Big V Slot Wheel Kit into your IoT project.

Code Examples

Openbuilds Big V Slot Wheel Kit Documentation

Overview

The Openbuilds Big V Slot Wheel Kit is a precision-engineered component designed for linear motion applications in DIY CNC machines, 3D printers, and other IoT projects. This kit consists of high-quality V-slot wheels and axles, providing smooth, accurate, and reliable movement along V-slot extrusions.

Technical Specifications

Material: 6061-T6 Aluminum
 Wheel diameter: 21mm
 Axle diameter: 8mm
 V-slot compatibility: Openbuilds V-slot extrusions
 Load capacity: Up to 10 kg (22 lbs)

Code Examples

### Example 1: Arduino Control for CNC Machine

In this example, we'll demonstrate how to use the Openbuilds Big V Slot Wheel Kit with an Arduino board to control a CNC machine.

Hardware:

Arduino Mega 2560 board
 Openbuilds Big V Slot Wheel Kit
 CNC machine frame with V-slot extrusions
 Stepper motor (e.g., NEMA 17)
 Stepper motor driver (e.g., A4988)

Code:
```c++
#include <Stepper.h>

// Stepper motor pin connections
const int dirPin = 2;
const int stepPin = 3;
const int enablePin = 4;

// Stepper motor setup
Stepper stepper(200, dirPin, stepPin);

void setup() {
  // Initialize stepper motor
  stepper.setSpeed(100); // Set speed to 100 steps/second
}

void loop() {
  // Move the CNC machine's carriage along the V-slot
  for (int i = 0; i < 100; i++) {
    stepper.setDirection(CLOCKWISE);
    stepper.step(100);
    delay(500);
    
    stepper.setDirection(COUNTERCLOCKWISE);
    stepper.step(100);
    delay(500);
  }
}
```
This code utilizes the Stepper library to control the stepper motor, which in turn drives the Openbuilds Big V Slot Wheel Kit along the V-slot extrusion.

### Example 2: Python Script for 3D Printer Automation

In this example, we'll show how to use the Openbuilds Big V Slot Wheel Kit with a Raspberry Pi and Python to automate a 3D printer's linear movement.

Hardware:

Raspberry Pi 4
 Openbuilds Big V Slot Wheel Kit
 3D printer frame with V-slot extrusions
 Stepper motor (e.g., NEMA 17)
 Stepper motor driver (e.g., A4988)

Code:
```python
import RPi.GPIO as GPIO
import time

# GPIO pin connections
GPIO_DIR = 17
GPIO_STEP = 23
GPIO_ENABLE = 24

# Stepper motor setup
GPIO.setup(GPIO_DIR, GPIO.OUT)
GPIO.setup(GPIO_STEP, GPIO.OUT)
GPIO.setup(GPIO_ENABLE, GPIO.OUT)

# Function to move the 3D printer's carriage
def move_carriage(direction, steps):
    GPIO.output(GPIO_DIR, direction)
    for i in range(steps):
        GPIO.output(GPIO_STEP, GPIO.HIGH)
        time.sleep(0.001)
        GPIO.output(GPIO_STEP, GPIO.LOW)
        time.sleep(0.001)

# Move the carriage along the V-slot
move_carriage(GPIO.HIGH, 100)  # Move 100 steps in the positive direction
time.sleep(1)
move_carriage(GPIO.LOW, 100)  # Move 100 steps in the negative direction
```
This Python script utilizes the RPi.GPIO library to control the stepper motor, which drives the Openbuilds Big V Slot Wheel Kit along the V-slot extrusion, automating the 3D printer's linear movement.