Why Is Change Filament Greyed Out in Orca?

Many OrcaSlicer users on Reddit have reported an issue where the “Change Filament” option is greyed out, preventing them from swapping filament during a print. This can be frustrating, especially when trying to use multiple colors, change materials, or fix filament-related issues mid-print.

If you’re facing this problem, don’t worry! In this guide, we’ll explain why the Change Filament button is disabled in OrcaSlicer, how to fix it, and some useful tips for troubleshooting. Whether you’re a beginner or an experienced user, this guide will help you resolve the issue effectively.

Why Is Change Filament Greyed Out in Orca?

There are several reasons why the “Change Filament” button may be unavailable in OrcaSlicer:

1. Incorrect Print Settings

If the print is already in progress, but the slicer settings don’t support filament changes, the option may be disabled. Some common settings that can cause this include:

• No filament change commands in the G-code
• Lack of M600 filament change command
• Continuous printing mode enabled

2. Printer Firmware Limitations

Not all 3D printers support live filament changes. If your printer’s firmware does not have M600 (the filament change command) enabled, OrcaSlicer will not allow filament swaps.

3. Single Extruder Printer Limitations

If you have a single extruder printer and are trying to print with multiple colors, OrcaSlicer may disable the option if the required settings are not configured correctly.

4. Printing from SD Card or USB Without Direct Control

When printing from an SD card or USB drive, the slicer cannot directly control filament changes. This means you must use the printer’s onboard controls instead.

5. Software Bug or Outdated Version

Sometimes, a bug in OrcaSlicer can cause the “Change Filament” option to be greyed out. If you’re using an outdated version of the software, updating to the latest release might solve the issue.

6. Filament Runout Sensor Issues

Some printers have filament runout sensors that automatically pause the print when filament runs out. If the sensor is disabled or not functioning correctly, you may not get the filament change option when needed.

How to Fix “Change Filament” Greyed Out Issue in Orca

1. Enable Filament Change in Slicer Settings

To allow filament changes during printing, you need to enable it in OrcaSlicer:

1. Open OrcaSlicer and go to Printer Settings.
2. Check if your printer firmware supports M600.
3. Enable Filament Change (M600) in the G-code.
4. Save settings and re-slice your model.

2. Manually Add Filament Change Command (M600)

If your slicer does not generate the M600 command automatically, you can add it manually:

1. Open the G-code file in a text editor.
2. Find the layer where you want to change the filament.
3. Add M600 before the layer starts.
4. Save the file and print again.

3. Use the Printer’s Built-In Filament Change Feature

If you’re printing from an SD card or USB, check your printer’s control panel:

1. Pause the print manually.
2. Select “Change Filament” from the printer menu.
3. Load the new filament and resume the print.

4. Update OrcaSlicer and Printer Firmware

If you are using an outdated version of OrcaSlicer or your printer firmware, updating them may fix the issue:

• Update OrcaSlicer: Download the latest version from the official OrcaSlicer website.
• Update Printer Firmware: Visit your printer manufacturer’s website and check for firmware updates.

5. Check Printer Compatibility with M600 Command

Some printers do not support the M600 command by default. Check your printer’s manual or manufacturer’s website to see if M600 can be enabled.

6. Enable Filament Runout Sensor

If your printer has a filament runout sensor, make sure it is enabled:

1. Go to your printer’s settings.
2. Look for “Filament Sensor” or “Runout Detection”.
3. Enable it and restart your printer.

Common Questions (FAQs)

1. What is the M600 command in 3D printing?

The M600 command is used to pause a print and prompt the user to change the filament before resuming.

2. Why does filament change work on some prints but not others?

This depends on your slicer settings and whether the M600 command is included in the G-code for that specific print.

3. Can I change filament on a single-extruder printer?

Yes, but you must manually pause the print and swap the filament. Using M600 in the G-code automates this process.

4. How do I manually insert a filament change command in OrcaSlicer?

You can insert M600 at a specific layer by editing the G-code or using the “Filament Change” option in OrcaSlicer’s settings.

5. Does OrcaSlicer support multi-color printing?

OrcaSlicer does not support direct multi-color printing, but you can use filament swaps (M600) to change colors at specific layers.

6. What should I do if the “Change Filament” option is still greyed out after updating OrcaSlicer?

Try these steps:

• Restart your printer and computer.
• Ensure M600 is enabled in the printer firmware.
• Check that you are printing via USB connection instead of an SD card.

Conclusion

The “Change Filament” option being greyed out in OrcaSlicer is a common issue that can be caused by incorrect settings, firmware limitations, or outdated software. By enabling filament change settings, updating firmware, and manually adding the M600 command, you can resolve the issue and successfully swap filaments during a print.

If you’re still having trouble, consider reaching out to the OrcaSlicer community on Reddit or checking your printer’s documentation for additional support. By following the steps in this guide, you’ll be able to fix the issue and make your 3D printing process smoother and more efficient.