Support Top/Bottom Z Distance as Percentage of Layer Height #1623

New Issue

MrUnknownDE · 2026-04-05T18:43:52+02:00

MrUnknownDE commented

2026-04-05 18:43:52 +02:00

Originally created by @Primus27 on 11/15/2025

Is there an existing issue for this feature request?

I have searched the existing issues

When creating custom print profiles, I prefer to make a single main profile and override the layer height on a project-by-project basis. The issue is that it's easy to forget to also update the top and bottom z distance for supports. This can result in suboptimal support distances.

Which printers will be beneficial to this feature?

All

Describe the solution you'd like

Similar to other settings, you should be able to specify the top and bottom z distance in both mm (as it currently is) and as a percentage of the layer height. By default, the slicer would interpret values as mm unless they are suffixed with a %. This would maintain backwards compatibility with existing profiles.

For example, setting the top z distance to 50% with a 0.2mm LH would result in a 0.1mm gap distance. Naturally, when top z distance is left at 50% and the user updates the layer height to 0.16mm, the top z distance would become 0.08mm.

Describe alternatives you've considered

No response

Additional context

No response

*Originally created by @Primus27 on 11/15/2025* ### Is there an existing issue for this feature request? - [x] I have searched the existing issues ### Is your feature request related to a problem? When creating custom print profiles, I prefer to make a single main profile and override the layer height on a project-by-project basis. The issue is that it's easy to forget to also update the top and bottom z distance for supports. This can result in suboptimal support distances. ### Which printers will be beneficial to this feature? All ### Describe the solution you'd like Similar to other settings, you should be able to specify the top and bottom z distance in both mm (as it currently is) and as a percentage of the layer height. By default, the slicer would interpret values as `mm` unless they are suffixed with a `%`. This would maintain backwards compatibility with existing profiles. For example, setting the top z distance to 50% with a 0.2mm LH would result in a 0.1mm gap distance. Naturally, when top z distance is left at 50% and the user updates the layer height to 0.16mm, the top z distance would become 0.08mm. ### Describe alternatives you've considered _No response_ ### Additional context _No response_

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Reference: github/OrcaSlicer#1623