End code fan error :(

[KarelVogel]

Pronterface 2.2.0 always sends the last fan speed immediately at the end of the code :( i.e. sends M107 (or another fan command) before completing the movements at the end of the print, previously it worked and the fan turned off only after the movement was completed! Where is the error? It doesn't matter if this command sequence is part of the Gcode of the print, or is for example used as a custom button in Pronterface.
M106 S150 ; fan strong
M104 S0 ; turn off extruder
M140 S0 ; turn off the pad
G1 Y10 X150 F5000
G1 Y10 X50 F10 ; time for cooling
G1 Y200 F5000
M84 ; turn off motors
M107 ; turn off the fan

[DivingDuck]

Hi @KarelVogel,
I just checked it and I can't replicate your behavior. Pronterface do not reorder a given gcode sequence when sending it to the printer. Below you can see the sent gcode from Pronterface to the printer. It is exactly in the same order as it is in your example. Everything else would be a surprise as we would then possibly have a bigger problem.

Testfile: testKV.zip

<socket.socket fd=296, family=2, type=1, proto=0, laddr=('127.0.0.1', 8080), raddr=('127.0.0.1', 50376)>
b'M105\n'
b'T0\n'
b'M110 N-1\n'
b'M106 S150\n'
b'M104 S0\nM140 S0\nG1 Y10 X150 F5000\nG1 Y10 X50 F10\nG1 Y200 F5000\nM84\nM107\nM110 N-1\n'
b'M105\n'
b'M117 Finished Print\n'

This kind of behavior is printer/firmware related. This maybe will explain the behavior: https://reprap.org/wiki/G-code#Buffering

[DivingDuck]

@KarelVogel
Should we close this issue? From our side I don't see a problem as the gcode will be send in the correct order.