# Fix for Copy/Mirror Mode Stalling at the end of the Start G-code

**URL:** <https://forum.sovol3d.com/t/fix-for-copy-mirror-mode-stalling-at-the-end-of-the-start-g-code/6755>\
**Category:** Sovol SV04 IDEX\
**Tags:** advice, slicer\
**Created:** [January 29, 2025, 9:43pm UTC](https://forum.sovol3d.com/t/fix-for-copy-mirror-mode-stalling-at-the-end-of-the-start-g-code/6755 "2025-01-29T21:43:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![P-A-R](https://avatars.discourse-cdn.com/v4/letter/p/54ee81/32.png) [@P-A-R](https://forum.sovol3d.com/u/P-A-R)\
**Post date:** [January 29, 2025, 9:43pm UTC](https://forum.sovol3d.com/t/fix-for-copy-mirror-mode-stalling-at-the-end-of-the-start-g-code/6755/1 "2025-01-29T21:43:04Z")

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Hi everyone,

I wanted to share a solution for anyone experiencing stalled prints when using copy/mirror mode, especially at the end of the start G-code. I ran into this issue because I was printing with PETG and had set temperatures higher than those typically used for PLA.

To get a copy mode print to start properly, I found that temporarily setting the hotend to **190°C** and the bed to **60°C** allows the start G-code to run correctly. After that, I adjust the temperatures to the appropriate values for PETG.

Here’s my custom start G-code:

;Copy start  
M140 S60;  
M104 S190;  
M280 P0 S160;  
G4 P100;  
G28;  
M190 S60;  
M109 S190;  
G92 E0;  
G1 X10.1 Y20 Z0.28 F5000.0;  
G1 X10.1 Y200.0 Z0.28 F1500.0 E15;  
G1 X10.4 Y200.0 Z0.28 F5000.0;  
G1 X10.4 Y20 Z0.28 F1500.0 E30;  
G92 E0 ;Reset Extruder  
G1 Z2.0 F3000;  
M140 S{material\_bed\_temperature};  
M104 S{material\_print\_temperature};

This simple fix eliminates the need for PID tuning or firmware modifications.

Let me know if this works for you or if you have any other insights.