Independent Layer Height confined to Interface layers #520

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MrUnknownDE · 2026-04-05T16:22:08+02:00

MrUnknownDE commented

2026-04-05 16:22:08 +02:00

Originally created by @Lt-Kammello on 3/2/2026

Is there an existing issue for this feature request?

I have searched the existing issues

"independent-support_layer_height" must be active to achieve "support_top_z_distance" and "support_bottom_z_distance" different from "layer_height".

Also "min_layer_height" and "max_layer_height" are generally not respected by "independet-support-layer-height" calculations.

Many filaments respond poorly to too little or too much layer height, expecially fiber filled ones.
This combined behaviours can make the support totally fail, pieces of stripped support ends up in the part, on the nozzle, or the support just brakes where layer height is too little.

Which printers will be beneficial to this feature?

All

Describe the solution you'd like

I think there are a couple of solutions that can work better toghether:

A) "independent_support_layer_height" would respect "min_layer_height" and "max_layer_height" limits straight on;
B) An option is added in order to confine "independet-support-layer-height" behaviour to "support_interface_top_layers" even better with the ability to exclude first and last interface layers;

This solution, A) + B), would allow for much more predictable supports behaviour expecially with fiber filled filaments without the need to limit support speed and tryng to tweak "min_layer_height" and "max_layer_height" in order to obtain a somehow decent range of layer height.

Expecially B) would allow to simplify computatione and reduce failure rates since middle interface layers, not the fist not the last, are much more stable and resilient to layer height differences.

Describe alternatives you've considered

No response

Additional context

No response

*Originally created by @Lt-Kammello on 3/2/2026* ### Is there an existing issue for this feature request? - [x] I have searched the existing issues ### Is your feature request related to a problem? "independent-support_layer_height" must be active to achieve "support_top_z_distance" and "support_bottom_z_distance" different from "layer_height". Also "min_layer_height" and "max_layer_height" are generally not respected by "independet-support-layer-height" calculations. Many filaments respond poorly to too little or too much layer height, expecially fiber filled ones. This combined behaviours can make the support totally fail, pieces of stripped support ends up in the part, on the nozzle, or the support just brakes where layer height is too little. ### Which printers will be beneficial to this feature? All ### Describe the solution you'd like I think there are a couple of solutions that can work better toghether: A) "independent_support_layer_height" would respect "min_layer_height" and "max_layer_height" limits straight on; B) An option is added in order to confine "independet-support-layer-height" behaviour to "support_interface_top_layers" even better with the ability to exclude first and last interface layers; This solution, A) + B), would allow for much more predictable supports behaviour expecially with fiber filled filaments without the need to limit support speed and tryng to tweak "min_layer_height" and "max_layer_height" in order to obtain a somehow decent range of layer height. Expecially B) would allow to simplify computatione and reduce failure rates since middle interface layers, not the fist not the last, are much more stable and resilient to layer height differences. ### Describe alternatives you've considered _No response_ ### Additional context _No response_

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Reference: github/OrcaSlicer#520