@bustable said in attempting to extrude with no tool selected.:
G1 E10.0 F1000 ; prime
G92 E0
G29 S1
; process Process1
; layer 1, Z = 0.170
T0
There is a prime line before the tool selection. So unless a tool was already selected before the start of the print, that will cause the error originally reported.
@dgrat Check your cura start gcode for any extruder moves that happen before the T0. A good way to ensure a tool is always selected is to add T0 to the end of config.g so that it is selected at startup, and add it to start.g so that it is selected before a print incase it gets deselected for some reason before starting a print.
