How to Download and Install CR Touch Firmware for Your Creality 3D Printer
If you own a Creality 3D printer, you might have heard of the CR Touch, an automatic bed leveling sensor that can make your printing experience easier and more accurate. But how do you download and install the CR Touch firmware for your printer? In this article, we will guide you through the steps of finding, flashing, and configuring the right firmware for your printer model and mainboard version.
What is CR Touch and Why You Need It
The CR Touch is a device that attaches to your printer's extruder and probes the bed surface before each print. It creates a mesh of data points that tells the printer how to adjust the nozzle height according to the bed's shape and level. This way, you don't have to manually level the bed or use paper or feeler gauges to get the right nozzle distance.
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CR Touch Features and Benefits
The CR Touch has many features and benefits that make it a worthwhile upgrade for your Creality 3D printer. Here are some of them:
It is compatible with most Creality 3D printers, including Ender series, CR series, and more.
It is easy to install and use, with plug-and-play wiring and simple firmware update.
It has a high precision and repeatability, with a standard deviation of less than 0.005 mm.
It has a fast response time, with a probing speed of up to 5 mm/s.
It has a durable design, with a metal pin that can withstand high temperatures and wear.
It has a smart self-test function, with LED indicators that show the status and error codes.
It can improve your print quality, by ensuring a consistent nozzle height across the bed surface.
It can save your time and hassle, by eliminating the need for manual bed leveling and adjustment.
CR Touch Compatibility and Requirements
The CR Touch is compatible with most Creality 3D printers that have a 32-bit mainboard. However, some models may require additional hardware or software modifications to work properly. Here are some of the compatibility and requirements for different printer models:
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Printer ModelMainboard VersionAdditional Requirements
Ender-3V4.2.2 or V4.2.7None
Ender-3 ProV4.2.2 or V4.2.7None
Ender-3 V2V4.2.2 or V4.2.7New LCD screen or adapter board
Ender-5 ProV4.2.2 or V4.2.7New LCD screen or adapter board
Ender-6V4.3.1 or V4 the firmware file to a folder on your computer. You should see a file with a .bin extension, which is the firmware file that you need to flash to your printer.
Here is an example of how the firmware file name looks like for an Ender-3 Pro with a V4.2.7 mainboard and CR Touch:
Ender-3 Pro_427_CR-Touch_20210625_V1.0.2.bin
Note: The firmware file name may vary depending on the date and version of the firmware.
How to Flash the Firmware to Your Printer
After you have downloaded and unzipped the firmware file, you need to flash it to your printer using a micro SD card. To flash the firmware to your printer, follow these steps:
Turn off your printer and unplug the power cord.
Insert a micro SD card into your computer. Make sure the card is formatted to FAT32 and has at least 8 GB of free space.
Copy the firmware file with the .bin extension to the root directory of the micro SD card. Do not rename or modify the file.
Eject the micro SD card from your computer and insert it into the slot on your printer's mainboard.
Plug in the power cord and turn on your printer. The printer will automatically detect and update the firmware from the micro SD card. You should see a progress bar on your LCD screen or hear a beep sound when the update is done.
Remove the micro SD card from your printer and delete the firmware file from it. You can use the same card for printing as usual.
Note: Do not turn off or disconnect your printer during the firmware update process, as this may damage your printer or cause errors.
How to Configure and Calibrate Your CR Touch After Installation
After you have installed and flashed the CR Touch firmware, you need to configure and calibrate your CR Touch to make sure it works properly and accurately. This involves setting the Z-offset, updating your printer profile in Cura, and testing your CR Touch functionality.
How to Set the Z-Offset
The Z-offset is the distance between the nozzle and the bed when the CR Touch triggers. It determines how close or far the nozzle will be from the bed during printing. You need to set the Z-offset correctly to get a good first layer adhesion and avoid nozzle clogging or bed scratching.
To set the Z-offset, follow these steps:
Heat up your nozzle and bed to your usual printing temperature.
Go to Control > Motion > Z-Offset on your LCD screen.
Use a piece of paper or a feeler gauge to measure the gap between the nozzle and the bed.
Use the knob or buttons on your LCD screen to adjust the Z-offset value until you feel a slight resistance when moving the paper or gauge under the nozzle.
Save your settings by going to Control > Store Settings on your LCD screen.
Note: The Z-offset value may vary depending on your bed material, nozzle size, and filament type. You may need to fine-tune it after printing a test print.
How to Update Your Printer Profile in Cura
Cura is a popular slicing software that allows you to prepare your 3D models for printing. If you use Cura, you need to update your printer profile to enable the CR Touch function and add the necessary start and end G-code commands.
To update your printer profile in Cura, follow these steps:
Open Cura and go to Settings > Printer > Manage Printers.
Select your printer from the list and click on Machine Settings.
Check the box that says "Origin at center" under Printer Settings.
Check the box that says "Heated bed" under Printer Settings if your printer has a heated bed.
Go to the Start G-code tab and add the following lines at the end of the existing code:
M420 S1 ; enable CR Touch G28 ; home all axes G29 ; probe the bed
Go to the End G-code tab and add the following line at the end of the existing code:
M420 S0 ; disable CR Touch
Click on Close and then on OK to save your changes.
Note: The start and end G-code commands may vary depending on your firmware and settings. You can also customize them according to your preferences.
How to Test Your CR Touch Functionality
After you have set the Z-offset and updated your printer profile in Cura, you should test your CR Touch functionality to make sure it works as expected. You can do this by printing a test print that covers the entire bed area and checking the first layer quality.
To test your CR Touch functionality, follow these steps:
Download a test print file that covers the entire bed area, such as a bed leveling test or a first layer test. You can find many of them online or create your own.
Slice the file in Cura using your updated printer profile and save it to your micro SD card.
Insert the micro SD card into your printer and select the file from the LCD screen.
Watch the CR Touch probe the bed before printing and observe the nozzle height during printing.
Check the first layer quality and look for any signs of over-extrusion or under-extrusion, such as blobs, gaps, or elephant foot.
If needed, adjust the Z-offset or other settings and repeat the test print until you get a satisfactory result.
Note: The test print result may vary depending on your bed material, nozzle size, and filament type. You may need to fine-tune your settings after printing different models or changing any parameters.
How to Troubleshoot Common CR Touch Issues
The CR Touch is a reliable and accurate device that can improve your printing experience. However, like any other device, it may encounter some issues or errors from time to time. Here are some of the common CR Touch issues and how to troubleshoot them:
How to Fix CR Touch Not Homing Properly
If your CR Touch does not home properly, it may cause your nozzle to crash into the bed or miss the bed entirely. This can damage your printer or cause printing failures. To fix this issue, you need to check and adjust your homing settings in your firmware or LCD screen.
To fix CR Touch not homing properly, follow these steps:
Turn off your printer and unplug the power cord.
Check if your CR Touch is connected correctly to your mainboard and extruder. Make sure the wires are not loose or broken.
Check if your CR Touch is mounted securely and aligned with your nozzle. Make sure there is no gap or tilt between them.
Turn on your printer and go to Control > Motion > Home Offsets on your LCD screen.
Use the knob or buttons on your LCD screen to adjust the X and Y home offsets until they match the distance between your nozzle and the front left corner of your bed. For example, if your nozzle is 10 mm away from the front edge and 15 mm away from the left edge of your bed, set X home offset to -10 mm and Y home offset to -15 mm.
Save your settings by going to Control > Store Settings on your LCD screen.
Test your homing by going to Prepare > Auto Home on your LCD screen. Watch if your CR Touch triggers at the center of your bed. If not, repeat steps 5 and 6 until it does.
Note: The home offsets values may vary depending on your printer model and bed size. You can also adjust them in your firmware using a software like Arduino IDE or Visual Studio Code.
How to Fix CR Touch Flashing Red or Purple
If your CR Touch flashes red or purple, it means that it has encountered an error or a self-test failure. This can prevent your CR Touch from working properly or at all. To fix this issue, you need to check and reset your CR Touch device.
To fix CR Touch flashing red or purple, follow these steps:
Turn off your printer and unplug the power cord.
Check if your CR Touch is connected correctly to your mainboard and extruder. Make sure the wires are not loose or broken.
Check if your CR Touch is mounted securely and aligned with your nozzle. Make sure there is no gap or tilt between them.
Turn on your printer and go to Prepare > CR Touch Self-Test on your LCD screen.
Watch the LED indicators on your CR Touch device. They should flash blue, green, and red in sequence, and then stay green when the self-test is done.
If the LED indicators flash red or purple, it means that there is an error or a failure in the self-test. You need to reset your CR Touch device by pressing and holding the reset button on the back of the device for 5 seconds.
Repeat steps 4 and 5 until the LED indicators stay green after the self-test.
Note: The LED indicators may flash different colors depending on the status and error codes of your CR Touch device. You can refer to the user manual or the Creality website for more information about the LED indicators and their meanings.
How to Fix CR Touch Not Working with Third-Party Firmware
If you use a third-party firmware for your printer, such as Marlin, Klipper, or TH3D, you may encounter some issues or incompatibilities with your CR Touch device. This can cause your CR Touch to not work at all or work incorrectly. To fix this issue, you need to check and update your firmware settings and configuration.
To fix CR Touch not working with third-party firmware, follow these steps:
Download the latest version of your third-party firmware from its official source or repository.
Open the firmware files in a software like Arduino IDE or Visual Studio Code.
Find and edit the configuration file that matches your printer model and mainboard version.
Enable the BLTouch option and disable any other bed leveling options in the configuration file.
Adjust the probe offset, probe grid, probe speed, and other settings related to the CR Touch in the configuration file according to your preferences and specifications.
Compile and upload the firmware to your printer using a USB cable or a micro SD card.
Test your CR Touch functionality by printing a test print and checking the first layer quality.
Note: The firmware settings and configuration may vary depending on your firmware type and version. You can refer to the documentation or the community forums of your firmware for more information and guidance.
Conclusion
The CR Touch is a great device that can enhance your Creality 3D printer's performance and accuracy. However, it requires some installation and configuration steps to work properly. In this article, we have shown you how to download and install the CR Touch firmware for your printer model and mainboard version, how to configure and calibrate your CR Touch after installation, and how to troubleshoot common CR Touch issues. We hope this article has been helpful and informative for you. If you have any questions or feedback, please feel free to leave a comment below.
FAQs
Q: Where can I buy a CR Touch device?
A: You can buy a CR Touch device from the official Creality website or from authorized resellers online or offline. Make sure you buy from a reputable source and avoid counterfeit products.
Q: How much does a CR Touch device cost?
A: The price of a CR Touch device may vary depending on the seller and the region. However, as of June 2023, the official Creality website sells it for $49.99 USD.
Q: How long does it take to install a CR Touch device?
A: The installation time of a CR Touch device may vary depending on your printer model and skill level. However, it usually takes about 15 to 30 minutes to install the device on your extruder and flash the firmware to your printer. You may need more time to configure and calibrate your CR Touch after installation.
Q: How often do I need to calibrate my CR Touch device?
A: The CR Touch device is designed to be stable and reliable, so you don't need to calibrate it frequently. However, you may need to recalibrate it if you change any of the following factors:
Your bed material or surface.
Your nozzle size or type.
Your filament type or brand.
Your printing temperature or speed.
Your firmware or settings.
You can also calibrate your CR Touch device whenever you notice any issues or inconsistencies with your print quality or bed leveling.
Q: Can I use CR Touch with other 3D printers or mainboards?
A: The CR Touch device is designed to work with Creality 3D printers and mainboards. However, some users have reported that they have successfully used it with other 3D printers or mainboards, such as Anet, SKR, or BTT. However, this may require some modifications and customizations, and it is not officially supported by Creality. Therefore, we do not recommend using CR Touch with other 3D printers or mainboards unless you are confident and experienced in doing so. 44f88ac181
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