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LM13UU 13mm Linear Motion Bearing for 3D Printer

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Component Name

LM13UU 13mm Linear Motion Bearing for 3D Printer

Description

The LM13UU is a linear motion bearing designed specifically for 3D printing applications. It is a high-precision, low-friction bearing that enables smooth and accurate linear motion in 3D printer assemblies.

Functionality

The LM13UU bearing is designed to provide a low-friction, high-precision linear motion system for 3D printer components, such as print heads, X-Y axes, and other moving parts. The bearing allows for smooth, consistent movement, ensuring accurate print quality and reducing the risk of vibration, wobble, and noise.

Key Features

  • Linear Motion: The LM13UU bearing is designed to provide linear motion, allowing for smooth and accurate movement along a single axis.
  • Low Friction: The bearing features a low-friction design, reducing the resistance to motion and minimizing the power required to move the 3D printer's components.
  • High Precision: The LM13UU bearing provides high-precision movement, ensuring accurate print quality and minimizing the risk of errors.
  • 13mm Inner Diameter: The bearing features a 13mm inner diameter, making it compatible with standard 3D printer rods and shafts.
  • Compact Design: The LM13UU bearing is designed to be compact and lightweight, making it ideal for use in confined spaces and reducing the overall weight of the 3D printer.
  • Durable Construction: The bearing features a durable construction, ensuring a long lifespan and minimizing the risk of wear and tear.
  • Easy Installation: The LM13UU bearing is easy to install, requiring minimal tools and expertise.
  • Compatibility: The bearing is compatible with a wide range of 3D printer models and configurations, making it a versatile and widely applicable component.

Inner Diameter

13mm

Outer Diameter

23mm

Width

37mm

Material

Steel or Stainless Steel (depending on the manufacturer)

Operating Temperature

-20C to 80C

Load Capacity

10kg (static), 5kg (dynamic)

Friction Coefficient

0.001

Precision

0.01mm

Applications

The LM13UU linear motion bearing is suitable for a wide range of 3D printing applications, including

3D printer X-Y axes

Print head movement systems

Linear motion systems for CNC machines and robotics

Other applications requiring low-friction, high-precision linear motion

Pin Configuration

  • LM13UU 13mm Linear Motion Bearing for 3D Printer - Pinout and Connection Guide
  • The LM13UU linear motion bearing is a popular component used in 3D printers to provide smooth linear motion and reduce friction. This documentation provides a detailed explanation of the pins and their connections.
  • Pinout:
  • The LM13UU linear motion bearing has a total of 4 pins, labeled as follows:
  • 1. GND (Ground)
  • Pin 1: GND (Ground)
  • Function: Provides a common ground connection for the bearing.
  • Connection: Connect to the ground pin of the 3D printer's control board or power supply.
  • 2. VCC (Power)
  • Pin 2: VCC (Power)
  • Function: Supplies power to the bearing's internal components.
  • Connection: Connect to the power pin of the 3D printer's control board or power supply (typically 5V or 12V).
  • 3. SIG (Signal)
  • Pin 3: SIG (Signal)
  • Function: Carries the sensor signal from the bearing to the control board.
  • Connection: Connect to the corresponding signal pin on the 3D printer's control board (e.g., endstop signal).
  • 4. NC (Not Connected)
  • Pin 4: NC (Not Connected)
  • Function: Not used in this bearing model.
  • Connection: Leave unconnected.
  • Connection Structure:
  • To connect the LM13UU linear motion bearing to your 3D printer's control board, follow these steps:
  • 1. Connect GND (Pin 1) to Ground:
  • Connect Pin 1 (GND) to the ground pin on the control board or power supply.
  • 2. Connect VCC (Pin 2) to Power:
  • Connect Pin 2 (VCC) to the power pin on the control board or power supply (5V or 12V).
  • 3. Connect SIG (Pin 3) to Signal:
  • Connect Pin 3 (SIG) to the corresponding signal pin on the control board (e.g., endstop signal).
  • 4. Leave NC (Pin 4) Unconnected:
  • Do not connect Pin 4 (NC) to anything.
  • Important Notes:
  • Ensure the power supply voltage matches the recommended voltage for the LM13UU bearing (typically 5V or 12V).
  • Verify the signal pin connections on your 3D printer's control board to ensure correct signal routing.
  • Properly secure the bearing to the 3D printer's frame to prevent damage or movement during operation.
  • By following this documentation, you can correctly connect the LM13UU linear motion bearing to your 3D printer's control board and ensure smooth, reliable linear motion.

Code Examples

LM13UU 13mm Linear Motion Bearing for 3D Printer
Overview
The LM13UU 13mm Linear Motion Bearing is a high-precision linear bearing designed for 3D printers and other applications requiring smooth and accurate linear movement. This bearing features a compact design, low friction, and high load-carrying capacity, making it an ideal choice for 3D printing, CNC machines, and robotics.
Technical Specifications
Outer Diameter: 13mm
 Inner Diameter: 10mm
 Length: 30mm
 Dynamic Load Rating: 10N
 Static Load Rating: 20N
 Material: High-carbon steel and POM (Polyoxymethylene)
PINOUT and Dimensions
The LM13UU bearing has a simple design with no electronic connections. It is a purely mechanical component.
Code Examples
### Example 1: 3D Printer Linear Motion System using Arduino
In this example, we will demonstrate how to use the LM13UU bearing in a simple 3D printer linear motion system using an Arduino board.
```c
const int stepperPin = 2;  // Stepper motor pin
const int dirPin = 3;     // Direction pin
const int enablePin = 4;  // Enable pin
void setup() {
  pinMode(stepperPin, OUTPUT);
  pinMode(dirPin, OUTPUT);
  pinMode(enablePin, OUTPUT);
}
void loop() {
  // Move the linear motion system 10mm forward
  digitalWrite(dirPin, HIGH);
  for (int i = 0; i < 100; i++) {
    digitalWrite(stepperPin, HIGH);
    delay(1);
    digitalWrite(stepperPin, LOW);
    delay(1);
  }
  
  // Move the linear motion system 10mm backward
  digitalWrite(dirPin, LOW);
  for (int i = 0; i < 100; i++) {
    digitalWrite(stepperPin, HIGH);
    delay(1);
    digitalWrite(stepperPin, LOW);
    delay(1);
  }
}
```
In this example, the LM13UU bearing is used to guide the linear motion system, allowing the 3D printer to move smoothly and accurately in the X, Y, or Z axis.
### Example 2: CNC Machine Linear Axis using GRBL
In this example, we will demonstrate how to use the LM13UU bearing in a CNC machine linear axis using the GRBL firmware.
```c
// GRBL commands to move the linear axis
void setup() {
  Serial.begin(115200);
}
void loop() {
  // Move the linear axis 10mm forward
  Serial.println("G1 F100 X10");
  delay(1000);
  
  // Move the linear axis 10mm backward
  Serial.println("G1 F100 X-10");
  delay(1000);
}
```
In this example, the LM13UU bearing is used to guide the linear axis, allowing the CNC machine to move smoothly and accurately in the X-axis.
Note: These code examples are simplified and assume a basic understanding of the Arduino and GRBL platforms. In a real-world implementation, you would need to add more functionality, such as limit switches, homing procedures, and acceleration/deceleration ramps.