jlund

Here is how I got rid of the pre-heating of the inactive extruder that oozes all over the place. I am working with a Custom printer def (TAZ 6 dual) and find dual extruder printing with Cura 4.8 not usable out of the box with a number of bugs. On top I use Ninjaflex as one material - challenging and deemed as experimental by Ultimaker (not supported) in relation to dual extruder printing. 1. I uncommented Cura's temperature commands with extensions, post processing, modify gcode, search and replace, and added two of these: M104 T1 replaced with ;M104 T1 M104 T0 replaced with ;M104 T0 This disables Cura temperature handling, so you need to add some yourself in extruder end scripts. 2. In Machine settings, manage printers, extruder 1 end-script I added: M109 R{material_standby_temperature, 0} T0 ; EndGcodeT0 M109 R{material_print_temperature, 1} T1 ; EndGcodeT0 for extruder 2 end-script add: M109 R{material_standby_temperature, 1} T1 ; EndGcodeT1 M109 R{material_print_temperature, 0} T0 ; EndGcodeT1 This waits for lowering the temperature on the finishing extruder before raising the temperature on the starting extruder. You should also add where this happens outside the printed model, and I am still experimenting with placing the (de-)heating extruder on the prime tower tube. 3. To be sure start and end script temperature handling is not affected by the scripts, I made sure M104 commands had T0 and T1 at the end instead ex.: M104 S170 T0 M104 S0 T1 The above also is a work-around for one of the dual printing bugs, where built in temperature handling for one of the extruders slowly let the temperature slide over time and stop handling it mid way.