Nozzle path causes floating (not attached) filament

[FrHePo]

Description of the bug

The sliced nozzle path leads to floating filament at Z=5mm.

Project file & How to reproduce

My X-carriage linear for Orbiter 2.0+RM PET-CF 0.6n.zip

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

PrusaSlicer Version: 2.8.1+win64 Build: PrusaSlicer-2.8.1+win64-202409181359

Operating system

Operating System: Windows System Architecture: 64 bit Windows Version: Windows 10 (build 19045), 64-bit edition

Printer model

Prusa i3 MK3

[neophyl]

I think this is the same issue as raised here #13144
If you change the slicing to Classic rather than Arachne then it changes the perimeter order and does things in a more 'sensible' order.

However that model geometry could be designed better to force any slicer to print better, it is still an unsupported hole in the middle of a flat surface. The same modelling techniques used for counterbore holes would work here.