Unnecessary Z-hop during travel even when not requested #1110

New Issue

MrUnknownDE · 2026-04-05T16:50:15+02:00

MrUnknownDE commented

2026-04-05 16:50:15 +02:00

Originally created by @enomado on 1/11/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

nightly

Operating System (OS)

Windows

OS Version

11

Additional system information

No response

Printer

ender3 pro

How to reproduce

perhaps default config. it generates code like this

G1 E-3 F3000 ; retract
G1 X129.86 Y126.354 Z3.18 ; move to first perimeter point
G1 X131.028 Y129.699 ; move to first perimeter point
G1 X130.209 Y132.981 ; move to first perimeter point
G1 X127.604 Y135.378 ; move to first perimeter point
G1 X125.57 Y135.943 ; move to first perimeter point
G1 X125.299 Y135.961 ; move to first perimeter point
G1 X125.303 Y136.014 Z2.98 ; move to first perimeter point
G1 E3 ; ; unretract

and path like this

Actual results

Problem with this things is in tiny filament droplets. Its not actual z-hop because its only 0.2mm high, but it make things worse.

Expected results

Would be better to travel on height of previous layer and go higher only on new layer start, not prev layer end. Or at least have configuration.

Project file & Debug log uploads

test_three.zip

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @enomado on 1/11/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version nightly ### Operating System (OS) Windows ### OS Version 11 ### Additional system information _No response_ ### Printer ender3 pro ### How to reproduce perhaps default config. it generates code like this G1 E-3 F3000 ; retract **G1 X129.86 Y126.354 Z3.18 ; move to first perimeter point** G1 X131.028 Y129.699 ; move to first perimeter point G1 X130.209 Y132.981 ; move to first perimeter point G1 X127.604 Y135.378 ; move to first perimeter point G1 X125.57 Y135.943 ; move to first perimeter point G1 X125.299 Y135.961 ; move to first perimeter point **G1 X125.303 Y136.014 Z2.98 ; move to first perimeter point** G1 E3 ; ; unretract and path like this <img width="2322" height="784" alt="Image" src="https://github.com/user-attachments/assets/df683da9-e27a-48c2-b36d-50ff9b21774f" /> ### Actual results Problem with this things is in tiny filament droplets. Its not actual z-hop because its only 0.2mm high, but it make things worse. ### Expected results Would be better to travel on height of previous layer and go higher only on new layer start, not prev layer end. Or at least have configuration. ### Project file & Debug log uploads [test_three.zip](https://github.com/user-attachments/files/24547590/test_three.zip) ### Checklist of files to include - [ ] Log file - [ ] Project file ### Anything else? _No response_

MrUnknownDE closed this issue

2026-04-05 16:50:15 +02:00

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Reference: github/OrcaSlicer#1110