Feature Request: Automatic Glue Channel Generation for Split Parts #716

New Issue

MrUnknownDE · 2026-04-05T16:27:12+02:00

MrUnknownDE commented

2026-04-05 16:27:12 +02:00

Originally created by @TomTom240178 on 2/17/2026

Is there an existing issue for this feature request?

I have searched the existing issues

When printing large 3D models, it is often necessary to split them into smaller parts for printing. During reassembly, visible seams frequently appear along glue or connection surfaces, which negatively affects the final surface quality.

Which printers will be beneficial to this feature?

All

Describe the solution you'd like

A proven method to improve post-processing is to create a shallow channel or groove along the joining surfaces. This channel can then be filled (e.g., with resin, filler, or similar materials) and sanded flush, resulting in a clean and nearly invisible seam. Without such a channel, excess adhesive or filler is harder to control, making seamless finishing more difficult.

This feature request proposes that Orca Slicer provides an option to automatically generate such a channel along split surfaces. Ideally, the user should be able to:

Enable or disable automatic channel creation when splitting parts
Define channel dimensions (width, depth, shape)
Select or specify the side or surface where the channel should be applied
Support curved and complex geometries, not only flat planes
Optionally apply the channel manually to selected split interfaces

For reference, this video demonstrates why such channels are important for high-quality finishing of large assembled prints:
https://www.youtube.com/watch?v=f9DxHBCMWXY

For users working with large prints and post-processing workflows, this feature would significantly improve assembly quality, reduce finishing time, and enable more professional results.

Looking forward to this feature in future releases.

Thank you.

best regards,
Thomas

Describe alternatives you've considered

No response

Additional context

No response

*Originally created by @TomTom240178 on 2/17/2026* ### Is there an existing issue for this feature request? - [x] I have searched the existing issues ### Is your feature request related to a problem? When printing large 3D models, it is often necessary to split them into smaller parts for printing. During reassembly, visible seams frequently appear along glue or connection surfaces, which negatively affects the final surface quality. ### Which printers will be beneficial to this feature? All ### Describe the solution you'd like A proven method to improve post-processing is to create a shallow channel or groove along the joining surfaces. This channel can then be filled (e.g., with resin, filler, or similar materials) and sanded flush, resulting in a clean and nearly invisible seam. Without such a channel, excess adhesive or filler is harder to control, making seamless finishing more difficult. This feature request proposes that Orca Slicer provides an option to automatically generate such a channel along split surfaces. Ideally, the user should be able to: - Enable or disable automatic channel creation when splitting parts - Define channel dimensions (width, depth, shape) - Select or specify the side or surface where the channel should be applied - Support curved and complex geometries, not only flat planes - Optionally apply the channel manually to selected split interfaces For reference, this video demonstrates why such channels are important for high-quality finishing of large assembled prints: https://www.youtube.com/watch?v=f9DxHBCMWXY For users working with large prints and post-processing workflows, this feature would significantly improve assembly quality, reduce finishing time, and enable more professional results. Looking forward to this feature in future releases. Thank you. best regards, Thomas ### Describe alternatives you've considered _No response_ ### Additional context _No response_

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Reference: github/OrcaSlicer#716