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

Sovol SV04 IDEX
,
1

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.