The Ortur R2 is a diode laser engraver known for its precision and reliability. It features improved stability, faster engraving speeds, and enhanced safety mechanisms compared to earlier Ortur models. This machine is often used for small business applications, hobby projects, and light production work.

• Laser Type: Diode (455nm), Diode (1064nm)
• Model: Ortur R2
• Firmware: GRBL-based
• Working Area: Aproximately 300mm*210mm (varies by module)
• Connectivity: USB
• Software Compatibility: LightBurn, LaserGRBL
• Safety Features: Class 1 Laser Safety, Multi-sensor Flame Detection, Tilt Detection, Key Lock Protection

While reviewing this machine we've noticed a “bounce-back” issue when the R2 completes a homing cycle. This occurs when the stepper motors disengage briefly after homing, causing a slight shift in position.

Contributor: @kinofaya1143 (community tip)

To handle the bounce-back on the Ortur R2, adjust the motor idle setting in the firmware.

Steps:

1. Set $1=255 in the firmware configuration.

• This keeps the motors always engaged, preventing bounce-back during homing.
• Note: With this setting active, the laser cannot be moved by hand when idle.

2. To make this more convenient, you can create two macros:

1. Macro 1 (Homing Mode):

```

   $1=255
   $H
   ```
   → Homes the laser with motors engaged (no bounce-back).

1. Macro 2 (Manual Move Mode):

```

   $1=50
   ```
   → Releases the motors, allowing the laser head to be moved by hand when needed.

Users have reported that using these two macros resolves the bounce-back problem entirely while maintaining flexibility for manual adjustments.

Summary:

• `$1=255` → Motors always engaged (no bounce-back)
• `$1=50` → Motors disengage (manual movement possible)

“I had no problems since I did that. I hope this helps.” — @kinofaya1143

• Ortur R2 Review
• Ortur R2 - Official Website
• YouTube Livestream Talking About Homing Issue