Sequential Printing CRASH because of incorrect tool changer model for Prusa XL.

[Lungenpest]

Description of the bug

I tried to print sequential objects.
The lower clamping lever of the tool changer crashed in the previous object.

That happens because of an incorrect 3d model in PrusaSlicer 2.9.1.
The lower clamping lever is not in the final clamping position.

The screenshot from PrusaSlicer should tell you everything you need to know.

Please fix the model https://github.com/prusa3d/PrusaSlicer/blob/master/resources/data/printer_gantries/prusa3d_xl_gantry.stl .

Project file & How to reproduce

Slice model and go to positions shown in the screenshot.

Gridfinity-Box-1x1-VaseMode-alle5Höhen-SEQ-CRASH-ps291.zip

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

2.9.1

Operating system

Manjaro Flatpak

Printer model

Prusa XL 5T

[u89djt]

(Grateful fellow user) Well caught!

[Ro3Deee]

[Bob-Developer-Bob]

Great work, started to use it today and had this identical issue. You are totally correct.
We have to wait on a update, which will be soon.
For the time being I place the object after using A, further apart. That did not solve the issue.
With the second nozzle the head goes direct down and speeds into position and taking all in its way from the plate.
Was luckily testing 5 cylinders round 10 and 50mm high in Vase mode.
The printhead should first go horizontal @ >50 mm over the first cylinder and then on position lower down.

[u89djt]

EDIT Ignore this, it completely misses the point.
This is in no way even slightly official, and has only been tested very briefly. I moved the bar in the stl and put it in the slicer's gantry models folder. It seems to work when arranging OP's problem project.
prusa3d_xl_gantry.zip

[Jan-Soustruznik]

Internal Issue created(SPE-2731)

[tneff03]

The XL model is also missing the belts. Found this out the hard way on a long sequential print today.
The placement was done with auto arrange, then I double checked the preview and it had plenty of room. But that’s because the model needs the belts.

You can see in the images where the tall piece gets hit by the belt.

[Lungenpest]

This is in no way even slightly official, and has only been tested very briefly. I moved the bar in the stl and put it in the slicer's gantry models folder. It seems to work when arranging OP's problem project. prusa3d_xl_gantry.zip

Could you please add the belts, too? Like @tneff03 explained? That would be great an help us so much.

[u89djt]

Bear in mind I'm a fellow user - not associated with the prusa folk. I'll happily do it if I can get my hands on an accurate model to work from. The ones I've seen all look a bit approximate. They've taken it on as an internal issue, but if they want an alternative version to provide a bit of mental motion around it to help spot shortcomings, that could be interesting.

[u89djt]

EDIT Ignore this, it completely misses the point.
This is a quick hack with zero promises. I haven't tested it.

XL gantry hacked with belt.zip

[Lungenpest]

This is a quick hack with zero promises. I haven't tested it.

XL gantry hacked with belt.zip

First, thanks for your volunteer work!

I replaced the gantry model in the resources folder and the model itself doesn't change the arrangement behaviour, there is again collision on the first try with the belt. didn't checked the collision on the lever again, but I'm afraid that there is collision, too. Need further inspection.

3MF Project:
ps291-seq-crash.zip

[u89djt]

Ah well, that would be why it's an internal issue rather than an immediate push from prusa. I imagine they have a simpler mesh deeper in the system.

[Lungenpest]

Ah well, that would be why it's an internal issue rather than an immediate push from prusa. I imagine they have a simpler mesh deeper in the system.

Yes, i think its in the geometries.json file in the same directory

{
"printer_notes_regex": ".PRINTER_MODEL_XL.",
"gantry_model_filename": "prusa3d_xl_gantry.stl",
"slices": [
{
"height": "0",
"type": "convex",
"polygons": [
"-5,-5;5,-5;5,5;-5,5"
]
},
{
"height": "2",
"type": "convex",
"polygons": [
"-10,-47;34,-47;34,16;-10,16",
"-34,13;32,13;32,67;-34,67"
]
},
{
"height": "23",
"type": "convex",
"polygons": [
"-42,11;32,11;32,66;-42,66",
"-33,-37;43,-37;43,18;-33,18",
"-13,-68;47,-68;47,-30;-13,-30"
]
},
{
"height": "19",
"type": "box",
"polygons": [
"-400,24;400,24;400,50;-400,50"
]
},
{
"height": "220",
"type": "box",
"polygons": [
"-400,-400;400,-400;400,10;-400,10"
]
},
{
"height": "280",
"type": "box",
"polygons": [
"-400,-400;400,-400;400,400;-400,400"
]
}
]
},

[Ro3Deee]

fixed by dcec842