Reverse Arachne wall generator, variable thicker wall support #2143

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MrUnknownDE · 2026-04-06T00:23:47+02:00

MrUnknownDE commented

2026-04-06 00:23:47 +02:00

Originally created by @Christopher-Pepin on 9/18/2025

Is there an existing issue for this feature request?

I have searched the existing issues

Printing thick walls can improve strength and bonding however simply setting the line width thicker than the nozzle can cause certain features such as bridges or small details, to fail.

Which printers will be beneficial to this feature?

All

Describe the solution you'd like

If in addition to make the walls thinner when there is not enough room it would be nice to have an option for the wall generator to generate thicker walls where there is space. On thin walls the wall generator should revert to using the standard wall width or the arachne logic. Bridges should then print at the standard line width for a given nozzle

Describe alternatives you've considered

I have tried setting the line width thicker and using arachne mode which can help the print still get smaller details but bridges still fail as they will be assigned the larger line width

I have also tried selectively varying the line width with modifier shapes but it is cumbersome and requires the creation and precise placement of many support modifiers.

Additional context

No response

*Originally created by @Christopher-Pepin on 9/18/2025* ### Is there an existing issue for this feature request? - [x] I have searched the existing issues ### Is your feature request related to a problem? Printing thick walls can improve strength and bonding however simply setting the line width thicker than the nozzle can cause certain features such as bridges or small details, to fail. ### Which printers will be beneficial to this feature? All ### Describe the solution you'd like If in addition to make the walls thinner when there is not enough room it would be nice to have an option for the wall generator to generate thicker walls where there is space. On thin walls the wall generator should revert to using the standard wall width or the arachne logic. Bridges should then print at the standard line width for a given nozzle ### Describe alternatives you've considered I have tried setting the line width thicker and using arachne mode which can help the print still get smaller details but bridges still fail as they will be assigned the larger line width I have also tried selectively varying the line width with modifier shapes but it is cumbersome and requires the creation and precise placement of many support modifiers. ### Additional context _No response_

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Reference: github/OrcaSlicer#2143