Openai/692dc726-496c-8008-9960-48ea9220203b

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User: What to do

What to do

Assistant: This CODE: 11538 – Cutter Signal Error is from an Anycubic Kobra 2 series printer with the built-in filament cutter.

This CODE: 11538 – Cutter Signal Error is from an Anycubic Kobra 2 series printer with the built-in filament cutter. It means the printer thinks the cutter didn't reset or didn’t return to its home position.

Here’s how to fix it quickly:

✅ 1. Power Cycle the Printer

Turn the printer off, wait 10 seconds, then turn it back on. This often resets the cutter mechanism.

✅ 2. Check the Cutter Mechanism

Open the top where the filament runs in.

Look for:

• Anything blocking the cutter arm
• Filament scraps stuck inside
• Dust or debris
• The cutter blade not returning to its resting position

Manually slide the cutter arm gently—it should move smoothly.

✅ 3. Check the Cutter Sensor Cable

The cutter contains a small sensor wire. Make sure:

• The plug is pushed in fully
• No cable is loose
• No cable is pinched

A loose sensor plug causes this exact code.

✅ 4. Run the Cutter Test

On the printer screen:

Settings → Maintenance → Cutter Test

If the cutter does not fully move and return, the printer will show this error.

✅ 5. Disable Cutter (Temporary Bypass)

If you want to print immediately:

Settings → Cutter → OFF

You can still print normally; it only disables automatic filament cutting.

❗ If the error keeps coming back

It usually means:

• Faulty cutter motor
• Faulty hall sensor
• Loose internal cable

Anycubic support will replace the cutter assembly under warranty.

If you want, send me a picture of the cutter unit on your printer and I’ll tell you exactly what to check.

User: Kobra S1 printer

Kobra S1 printer

Assistant: Ah perfect — on the Anycubic Kobra S1, this error CODE: 11538 – Cutter signal error is specifically about the auto-cutt…

Ah perfect — on the Anycubic Kobra S1, this error CODE: 11538 – Cutter signal error is specifically about the auto-cutter module on the AMS-style feeder. The S1 has the same cutter unit as the Ace Pro, so the fix is similar.

Here’s what to do:

✅ 1. Turn the Printer Off and On

A simple reboot often resets the cutter position.

✅ 2. Check the Cutter Arm

On the Kobra S1, the cutter is inside the filament inlet box.

Open the top cover and look at the small metal/plastic cutter arm.

Check for:

• Filament scrap stuck inside
• Cutter not returning to its “home” position
• Arm feeling stiff when you move it gently

It should slide freely.

✅ 3. Check the Cutter Sensor Wire

Inside the same unit is a small wire that reads the cutter position.

Make sure:

• The wire is fully plugged in
• The connector hasn’t come loose
• No damage / pinching

A loose sensor plug = 11538 error every time.

✅ 4. Run This Test on the Screen

Settings → More → Cutter Test

If the cutter doesn’t:

1. Move
2. Cut
3. Return fully to the home position

—then the printer throws CODE 11538.

✅ 5. Disable Cutter to Keep Printing

If you want to print immediately:

Settings → Filament → Cutter OFF

This will bypass the cutter completely. Your prints will work fine — you just cut filament manually.

❗ If error continues

Then the fault is usually:

• Cutter board sensor dead
• Cutter motor jammed
• Internal cable unplugged inside the feeder unit

Anycubic will normally replace the cutter assembly free under warranty.

If you want, send me a photo of the cutter housing on your Kobra S1, and I’ll tell you exactly where to look and what to press/check.