[BUG] M92 Being Ignored.

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[BUG] M92 being ignored: A Critical Issue in Prusa MK3.5S Firmware

As a 3D printing enthusiast, accuracy and precision are crucial for producing high-quality prints. The Prusa MK3.5S is a popular 3D printer known for its reliability and precision. However, some users have reported a critical issue with the M92 command being ignored in the latest firmware version, 6.2.4+8909. In this article, we will delve into the details of this issue, its impact on printing accuracy, and potential solutions.

The M92 command is used to calibrate the machine's dimensions, ensuring that prints are accurate and precise. It sets the distance between the axes, which is essential for maintaining the correct scale of prints. In the Prusa MK3.5S, the M92 command has been working flawlessly for years, but with the introduction of firmware version 6.2.3, some users have reported issues with this command being ignored.

One user, who has been experiencing general issues since firmware version 6.2.3, reported that their M92 calibration was being ignored. They had been using the M92 command to calibrate their machine for dimensionally accurate prints, but after upgrading to the latest firmware, their prints started to be undersized. Despite running the calibration again, the issue persisted, leading them to suspect that the M92 command was being ignored.

Symptoms

The symptoms of this issue are clear: prints are being undersized, and the M92 calibration is not being applied. This is a critical problem, as it affects the accuracy and precision of prints. The user has confirmed that the M92 command is present in the produced G-code, but it is being ignored by the printer.

How to Reproduce

To reproduce this issue, follow these steps:

  1. Print a test shape using the M92 command to calibrate its size.
  2. Print the test shape again to confirm that the size has not changed.

Expected Behavior

The expected behavior is that the M92 command is applied, and the print size is accurate and precise.

Files

No files are provided with this report.

The M92 command being ignored has a significant impact on printing accuracy. Prints are being undersized, which can lead to a range of issues, including:

  • Inaccurate dimensions
  • Poor fit and finish
  • Reduced print quality

To resolve this issue, the following potential solutions can be explored:

  1. Downgrade to previous firmware version: Downgrading to a previous firmware version, such as 6.2.2, may resolve the issue.
  2. Update to latest firmware version: Updating to the latest firmware version, 6.2.4+8909, may resolve the issue.
  3. Check for firmware corruption: Checking for firmware corruption and updating the firmware may resolve the issue.
  4. Reset printer settings: Resetting printer settings to their default values may resolve the issue.

The M92 command being ignored is a critical issue in the Prusa MK3.5S firmware. It affects the accuracy and precision of prints, leading to undersized prints. To resolve this issue, potential solutions can be explored, including downgrading to a previous firmware version, updating to the latest firmware version, checking for firmware corruption, and resetting printer settings. We hope that this article has provided valuable information and insights into this critical issue.

Based on the information provided, we recommend the following:

  • Prusa: Investigate and resolve the issue with the M92 command being ignored in the latest firmware version.
  • Users: Downgrade to a previous firmware version, update to the latest firmware version, check for firmware corruption, and reset printer settings to resolve the issue.
  • Community: Share your experiences and solutions to this issue in the Prusa community forum.

To prevent similar issues in the future, we recommend that Prusa:

  • Improve firmware testing: Improve firmware testing to detect and resolve issues like this before they reach users.
  • Provide clear documentation: Provide clear documentation on firmware updates and changes to help users understand and resolve issues like this.
  • Engage with the community: Engage with the community to gather feedback and insights on firmware issues and potential solutions.
    [BUG] M92 being ignored: A Critical Issue in Prusa MK3.5S Firmware - Q&A

In our previous article, we discussed the critical issue of the M92 command being ignored in the Prusa MK3.5S firmware. This issue affects the accuracy and precision of prints, leading to undersized prints. In this Q&A article, we will address some of the most frequently asked questions related to this issue.

Q: What is the M92 command, and why is it important?

A: The M92 command is used to calibrate the machine's dimensions, ensuring that prints are accurate and precise. It sets the distance between the axes, which is essential for maintaining the correct scale of prints.

Q: What is the impact of the M92 command being ignored?

A: The M92 command being ignored has a significant impact on printing accuracy. Prints are being undersized, which can lead to a range of issues, including:

  • Inaccurate dimensions
  • Poor fit and finish
  • Reduced print quality

Q: How can I reproduce this issue?

A: To reproduce this issue, follow these steps:

  1. Print a test shape using the M92 command to calibrate its size.
  2. Print the test shape again to confirm that the size has not changed.

Q: What are the potential solutions to this issue?

A: To resolve this issue, the following potential solutions can be explored:

  1. Downgrade to previous firmware version: Downgrading to a previous firmware version, such as 6.2.2, may resolve the issue.
  2. Update to latest firmware version: Updating to the latest firmware version, 6.2.4+8909, may resolve the issue.
  3. Check for firmware corruption: Checking for firmware corruption and updating the firmware may resolve the issue.
  4. Reset printer settings: Resetting printer settings to their default values may resolve the issue.

Q: Can I fix this issue by updating my printer's firmware?

A: Yes, updating your printer's firmware may resolve the issue. However, it's essential to ensure that you update to the latest version of the firmware, as older versions may still be affected by this issue.

Q: Will downgrading to a previous firmware version resolve the issue?

A: Yes, downgrading to a previous firmware version, such as 6.2.2, may resolve the issue. However, this may not be a viable solution for everyone, as it may require significant changes to your printer's settings and configuration.

Q: Can I reset my printer's settings to resolve the issue?

A: Yes, resetting your printer's settings to their default values may resolve the issue. However, this may require significant changes to your printer's configuration and settings.

Q: What should I do if I'm still experiencing issues after trying the potential solutions?

A: If you're still experiencing issues after trying the potential solutions, we recommend that you:

  • Contact Prusa support: Reach out to Prusa support for further assistance and guidance.
  • Join the Prusa community forum: Join the Prusa community forum to share experiences and solutions with other users.
  • Provide detailed information: Provide detailed information about your issue, including your printer's model, firmware version, and any error messages you may be receiving.

The M92 command being ignored is a critical issue in the Prusa MK3.5S firmware. We hope that this Q&A article has provided valuable information and insights into this issue. If you're still experiencing issues, we recommend that you contact Prusa support, join the Prusa community forum, and provide detailed information about your issue.