Single Mode Prime Fail: Extruder 1 always trying to prime
Hi All,
When I try to print from a single extruder, the wrong extruder primes (extruder 1) and blocks the extruder I want to use. I think its trying to print the skirt from T0 even though I've set the model to print from T2 in Slic3r. Any fixes?
Re: Single Mode Prime Fail: Extruder 1 always trying to prime
Check your start GCode. It is probably doing the initial priming on T0. You could change that to T2 for this print.
The way to do what you want is NOT to specify T2 in Slicer, but to do T? for the start gcode, and the print. The printer will then ask which extruder to use. (I have not done this, only read about it.)
Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss. If you solve your problem, please post the solution…
Re: Single Mode Prime Fail: Extruder 1 always trying to prime
The way to do what you want is NOT to specify T2 in Slicer, but to do T? for the start gcode, and the print. The printer will then ask which extruder to use. (I have not done this, only read about it.)
This is exactly how it should be done. I have been doing it this way since it was introduced without any problems.
Re: Single Mode Prime Fail: Extruder 1 always trying to prime
Ok. Below is the default start code in Slic3r version 1.37.1. So I want to change T0 in line 1 to T? Or change it to the extruder I want to use (T2, etc.)?
; Start G-Code sequence START
T0
M109 S[first_layer_temperature]
G21 ; set units to millimeters
G90 ; use absolute coordinates
M83 ; use relative distances for extrusion
G28 W
G80
G92 E0.0
M203 E100
M92 E140
G1 Z0.250 F7200.000
G1 X50.0 E80.0 F1000.0
G1 X160.0 E20.0 F1000.0
G1 Z0.200 F7200.000
G1 X220.0 E13 F1000.0
G1 X240.0 E0 F1000.0
G1 E-4 F1000.0
G92 E0.0
Re: Single Mode Prime Fail: Extruder 1 always trying to prime
Should not the Start G-code contain this:
T[initial_tool]
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Single Mode Prime Fail: Extruder 1 always trying to prime
Should not the Start G-code contain this:
T[initial_tool]
For a MultiMaterial print it is T[initial_extruder]
For a Single Mode print it is T?
Re: Single Mode Prime Fail: Extruder 1 always trying to prime
T? is a special feature of our latest firmware. It tells the printer: Ask the user to select a filament at the start of a print.
If you don't like the feature, you may replace it with the T[initial_tool], then the printer will just print with the assigned tool.