Display count of tool changes without wipe tower enabled

[ksipple]

Version

2.3.3+

Operating system type + version

Windows 10

3D printer brand / version + firmware version (if known)

MK3S+

Behavior

Number of tool changes is only shown in statistics when a wipe tower is enabled. This should not be based on if the wipe tower is enabled, it should check for extruders being greater than 1 instead. When doing manual filament swaps I don't always need a wipe tower but would like to see the number of tool changes needed.

[lukasmatena]

You are right. The same applies to total_toolchanges placeholder.

[mrhasbean]

Yes, both should also default to 0 for single extruder prints.

[themacboy]

Good morning,
I just finished my IDEX mod, but I can't find a way to specify in the gcode if the slice only has one or two toolheads.

I tried using "total_toolchanges", but as explained before, it only works with a wipe tower, and personally for my Idex printer I don't need to use a wipe tower.

Is there a way to know if one or two heads will be used in the slice?

thanks in advance!

(sorry for my poor english)

[themacboy]

I answer my self ... with one possible option ...

set wipe tower width and brim to 0

;)

[ddm-j]

Chiming in. I've written a custom GCODE command to prime both extruders at the start of a IDEX print. Unfortunately this code hinges on total_toolchanges working properly without the wipe tower enabled. At this time it does not.

1. total_toolchanges should not depend on the wipe tower function
2. "Prime Extruders" should be made available to all IDEX prints regardless of wipe tower. Gets rid of my need for custom start gcode.

[andreas-rapid-ood]

I have the same issue. My tool change script needs the info if a tool changes takes place or not. All printers which have several tools but do not use prime towers (but purge buckets for example) should have this issue if they want to use one profile for single material and multi material prints

[Googliola]

Shame this does not get fixed.
This line of code is just not right:

PrusaSlicer/src/libslic3r/GCode.cpp

Line 950 in 43f2018

print_statistics.total_toolchanges = std::max(0, wipe_tower_data.number_of_toolchanges);

[RobOvalle]

I answer my self ... with one possible option ...

set wipe tower width and brim to 0

;)

This crash the software.

[lukasmatena]

We will look into it soon.
SPE-1956

[lukasmatena]

Fixed in 2.7.0-beta1. Closing.

[lukasmatena]

Broken again in 2.8.0, will be fixed in 2.8.1. Sorry.

[lukasmatena]

Fixed again in 2.8.1-rc1.