Combining top layer infill and internal solid infil into a single infil type if 2 are connected. #1346

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MrUnknownDE · 2026-04-05T17:24:35+02:00

MrUnknownDE commented

2026-04-05 17:24:35 +02:00

Originally created by @dopa-mane on 12/16/2025

Is there an existing issue for this feature request?

I have searched the existing issues

Id like to be able to combine top layer infill and internal solid infill into a single infill type if those 2 are right next to each other, often 2 infill types are right next to each other especially on sloped surfaces and doing 2 smaller passes is generally slower than just doing one pass, even at slower speed.

Which printers will be beneficial to this feature?

All

Describe the solution you'd like

A checkbox that will detect if top layer infill and internal solid infill is connected and use the top layer infill speed and line thickness for both resulting in a smoother and faster (hopefully) print

Describe alternatives you've considered

1- Better model geometry can eliminate this issue but many models include sloped surfaces in which this issue occurs most
2- Inserting voids into the model to force top layer infill into important areas could work but it will be really time consuming to implement

Additional context

attached is a picture of 2 infill types being next to each other resulting in many more decel/accel events than i think is necessary since the whole area can just use top layer infill settings.

*Originally created by @dopa-mane on 12/16/2025* ### Is there an existing issue for this feature request? - [x] I have searched the existing issues ### Is your feature request related to a problem? Id like to be able to combine top layer infill and internal solid infill into a single infill type if those 2 are right next to each other, often 2 infill types are right next to each other especially on sloped surfaces and doing 2 smaller passes is generally slower than just doing one pass, even at slower speed. ### Which printers will be beneficial to this feature? All ### Describe the solution you'd like A checkbox that will detect if top layer infill and internal solid infill is connected and use the top layer infill speed and line thickness for both resulting in a smoother and faster (hopefully) print ### Describe alternatives you've considered 1- Better model geometry can eliminate this issue but many models include sloped surfaces in which this issue occurs most 2- Inserting voids into the model to force top layer infill into important areas could work but it will be really time consuming to implement ### Additional context <img width="1012" height="470" alt="Image" src="https://github.com/user-attachments/assets/61934d65-eee1-486b-b5aa-f1d763335884" /> attached is a picture of 2 infill types being next to each other resulting in many more decel/accel events than i think is necessary since the whole area can just use top layer infill settings.

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Reference: github/OrcaSlicer#1346