BIGTREETECH K-TOUCH

Contents

BIGTREETECH K-TOUCH 5 Inch Wireless Touch Screen Display User Manual

Model: K-TOUCH | Brand: BIGTREETECH

1. Introduction

The BIGTREETECH K-TOUCH is a 5-inch wireless touch screen display designed to provide intuitive control and monitoring for Klipper-based 3D printers. It offers a comprehensive interface for managing print operations, monitoring printer status, and performing pre-print utilities, enhancing the user experience with its cable-free design and multi-printer connection capabilities.

BIGTREETECH K-Touch 5-inch wireless control and monitoring pad for Klipper printers
Figure 1: BIGTREETECH K-Touch Wireless Control and Monitoring Pad.

This manual provides detailed instructions for setting up, operating, and maintaining your K-TOUCH display. Please read this manual thoroughly before use to ensure proper functionality and to maximize your printing efficiency.

2. Key Features

  • Klipper Compatibility: Specifically designed for Klipper-based 3D printers.
  • Wireless Control: Manage your printer remotely without physical connections.
  • Magnetic Charging: Convenient magnetic charging dock for flexible placement.
  • Remote Printing: Initiate and monitor print jobs from the K-Touch display.
  • Multi-Printer Connection: Seamlessly switch and control multiple printers (future OTA update for concurrent control).
  • Comprehensive Control Panel: Intuitive touch interface for all printer functions.
  • Pre-Print Utilities: Tools like Hotend Pre-Check, Endstop Status, Auto PID Tuning, and Z-offset Calibration.
  • 5-inch Touchscreen: Clear 800x480 resolution IPS full-view display.
  • Flexible Firmware Switching: Easily switch between K-Touch firmware for Klipper-based printers and Panda Touch firmware for Bambu Lab X1/C1/A1 series printers via OTA updates.
Diagram summarizing K-Touch features including Klipper compatibility, wireless control, magnetic charging, remote printing, multi-printer connection, comprehensive control panel, pre-print utilities, and 5-inch touchscreen.
Figure 2: Summary of K-Touch Key Features.

3. Package Contents

Verify that all items listed below are included in your package:

  • K-Touch Display x1
  • Magnetic Charging Dock x1
  • User Manual x1 (PDF version available online)
  • Mounting Bracket x1
  • M3x6 Flat Head Countersunk Screw (FHCS) x4
  • USB-C Charging Cable x1
  • Hex Key x1
  • BTT Duck x1 (promotional item)
Image showing all items included in the K-Touch package: K-Touch display, magnetic charging dock, user manual, mounting bracket, package box, M3x6 screws, USB-C cable, hex key, and a BTT duck.
Figure 3: K-Touch Package Contents.

4. Technical Specifications

Parameter Detail
Product Name K-Touch
Compatibility All FDM printers using Klipper firmware.
MCU Xtensa 32-bit LX7 dual-core ESP32S3R8, up to 240MHz
Memory PSRAM-8MB, Flash-16MB
Screen Size 5 inches
Resolution 800x480
Display IPS Full View with 16.7M colors
Connection 2.4G Wi-Fi (IEEE 802.11 b/g/n)
Operating Temperature 0-60°C
Operating Current 5V 0.5A (Peak 0.7A)
Logic Voltage 3.3V
Battery Life Enables K-Touch portable use for up to 0.5 hours.
Charging Time 1.2 hours
Expansion Interface I²C for temperature/humidity sensors, etc. (compatible accessories will soon be available), USB Drive (for reading USB drives)
Table of technical specifications for the K-Touch display, including product name, compatibility, MCU, memory, screen size, resolution, display type, connection, operating temperature, operating current, logic voltage, battery life, charging time, and expansion interfaces.
Figure 4: K-Touch Technical Specifications.

5. Setup Guide

5.1 Physical Installation

The K-Touch display can be mounted using the provided mounting bracket and screws. The magnetic charging dock allows for flexible positioning.

Exploded view showing the K-Touch display, magnetic charging dock, and mounting bracket, illustrating how they fit together.
Figure 5: K-Touch Mounting Components.

Attach the mounting bracket to a suitable surface near your 3D printer using the M3x6 flat head countersunk screws. The K-Touch display will then magnetically attach to the charging dock, which connects to the mounting bracket.

5.2 Powering On and Connections

Connect the USB-C charging cable to the K-Touch display or its magnetic dock. The device requires a 5V 0.5A power input. Use the power switch located on the rear of the magnetic charging dock to turn the device on or off.

Rear view of the K-Touch magnetic charging dock, showing the power switch, DC 5V input, and I2C interface ports labeled SDA1, SCL1, GND, +3.3V.
Figure 6: Rear Panel of Magnetic Charging Dock.

The I²C interface (SDA1, SCL1, GND, +3.3V) is available for connecting external sensors like temperature or humidity sensors. A USB Drive port is also present for reading USB drives.

5.3 Network Configuration

The K-Touch connects to your 3D printer wirelessly via 2.4G Wi-Fi (IEEE 802.11 b/g/n). Ensure both the K-Touch and your printer are connected to the same Wi-Fi network for seamless communication.

Image showing the K-Touch display wirelessly controlling a 3D printer, emphasizing cable-free operation. Also lists compatible Klipper-based printers like Voron 2.4, Voron Trident, Voron V0, BIQU Hurakan, Creality K1 Series, and Ender 3 V1.
Figure 7: Wireless Control Setup.

Follow the on-screen prompts on the K-Touch display to connect to your Wi-Fi network and then to your Klipper-based 3D printer. The display will typically show the printer's IP address once connected.

5.4 Firmware Updates

The K-Touch supports flexible firmware switching and OTA (Over-The-Air) updates. You can effortlessly switch between K-Touch firmware for Klipper-based printers and Panda Touch firmware for Bambu Lab X1/C1/A1 series printers.

Diagram illustrating flexible firmware switching between K-Touch for Klipper-based printers and Panda Touch for Bambu Lab printers, alongside a smartphone screen showing an OTA update success message.
Figure 8: Flexible Firmware Switching and OTA Updates.

Check the official BIGTREETECH GitHub or Wiki for the latest firmware versions and update instructions. OTA updates are performed directly through the device's settings menu.

6. Operating Instructions

6.1 User Interface Overview

The K-Touch features an intuitive graphical user interface. The main screen typically displays real-time printer status, including extruder and bed temperatures, case temperature, MCU temperature, and fan speed. Key functions are accessible via large, easy-to-tap icons.

K-Touch display showing the main interface with printer status (temperatures, fan speed) and control buttons for Printer Selection, Axis/Temp, Calibration, Settings, and Start Printing.
Figure 9: K-Touch Main Interface.

6.2 Pre-Print Utilities

Before starting a print, utilize the built-in pre-print utilities to ensure optimal printer performance:

  • Hotend Pre-Check: Verifies hotend readiness and temperature.
  • Endstop Status: Checks the status of all endstops.
  • Auto PID Tuning: Automatically tunes PID settings for consistent heating.
  • Z-offset Calibration: Assists in precise Z-axis calibration.
Screenshots of K-Touch pre-print utilities: Hotend Pre-Check, Endstop Status, Auto PID Tuning, and Z-offset Calibration, showing their respective interfaces and functions.
Figure 10: Pre-Print Utilities.

6.3 Printing and Control

The K-Touch provides comprehensive control over your printing process:

  • Remote Printing: Select and start print jobs from a connected USB drive or network.
  • Print Head Position: Manually adjust the X, Y, and Z axes.
  • Extrude/Retract: Control filament movement for loading, unloading, or purging.
  • Heating: Adjust hotend and bed temperatures.
Screenshots of K-Touch controls for Remote Printing, Print Head Position adjustment, Extrude/Retract filament control, and Heating settings for hotend and bed.
Figure 11: Total Control Functions.

6.4 Multi-Printer Management

The K-Touch allows you to connect to and manage multiple 3D printers. You can select the printer you want to control from a list of connected devices. Note that firmware version V1.0.0 supports single-printer control at a time; concurrent control of multiple printers will be enabled in a future OTA update.

K-Touch screen showing a list of connected printers (Printer0, Printer1, etc.) with their IP addresses, and options to add new printers, demonstrating multi-printer connection capability.
Figure 12: Multi-Printer Connection Interface.

7. Maintenance

7.1 Cleaning

To clean the K-Touch display, gently wipe the screen and casing with a soft, dry, lint-free cloth. For stubborn smudges, slightly dampen the cloth with water. Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the screen and finish.

7.2 Battery Care

The K-Touch features a magnetic charging battery, providing up to 30 minutes of portable use. To prolong battery life, avoid fully discharging the device frequently. Charge the device for approximately 1.2 hours to reach full capacity. Store the device in a cool, dry place when not in use for extended periods.

Image showing the K-Touch display magnetically attached to its charging dock, with a visual representation of battery charging and a '30 min' indicator for portable battery life.
Figure 13: Magnetic Charging and Battery Life.

8. Troubleshooting

  • Device not powering on:
    • Ensure the USB-C cable is securely connected and receiving power.
    • Check the power switch on the rear of the magnetic dock is in the 'ON' position.
    • Allow the device to charge for a few minutes if the battery is completely depleted.
  • Cannot connect to Wi-Fi:
    • Verify that your Wi-Fi network is 2.4GHz (802.11 b/g/n compatible).
    • Ensure the Wi-Fi password is entered correctly.
    • Move the K-Touch closer to your Wi-Fi router to improve signal strength.
  • Cannot connect to 3D printer:
    • Confirm both the K-Touch and your 3D printer are on the same Wi-Fi network.
    • Verify the IP address of your Klipper host is correctly entered in the K-Touch settings.
    • Ensure your Klipper host is running and accessible on the network.
  • Touchscreen unresponsive:
    • Restart the K-Touch device.
    • Ensure the screen is clean and free of debris or moisture.

9. User Tips

  • The K-Touch is a great addition for 3D printers like the Sovol Zero, providing convenient control.
  • While functional, some users note that the device's feature set might be limited compared to a full computer interface. Ensure it meets your specific control needs.

10. Warranty and Support

For warranty information, technical support, and service inquiries, please refer to the official BIGTREETECH website or contact their customer service directly. Keep your proof of purchase for warranty claims.

For additional resources, including firmware updates and detailed documentation, please visit the links below:

11. Product Video

Watch the official product video for an overview of the BIGTREETECH K-Touch display and its features.

Video 1: BIGTREETECH K-Touch Product Overview. This video showcases the BIGTREETECH office environment, product development, and various features of the K-Touch display in action.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.

After a successful submission, we securely hash the supplied account or form email before sending it to Microsoft Advertising for conversion attribution. Privacy details.