# U1 Multi-material; support interface layer

**URL:** <https://forum.snapmaker.com/t/u1-multi-material-support-interface-layer/41686>\
**Category:** Snapmaker Orca\
**Created:** [April 7, 2026, 3:08pm UTC](https://forum.snapmaker.com/t/u1-multi-material-support-interface-layer/41686 "2026-04-07T15:08:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![fosslegu](https://avatars.discourse-cdn.com/v4/letter/f/d9b06d/32.png) [@fosslegu](https://forum.snapmaker.com/u/fosslegu)\
**Post date:** [April 7, 2026, 3:08pm UTC](https://forum.snapmaker.com/t/u1-multi-material-support-interface-layer/41686/1 "2026-04-07T15:08:49Z")

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Hi,

I want to print in PETG with PLA as support.

Selected PLA for Support/raft interface and PETG as Support/raft base.

Works fine for the interface at the top of the supports (overhangs)

BUT: If I need a support that is growing from the model (not from build plate) itself that interface-layer is not printed in PLA but in PETG.

I would have expected that this interface layer is also seen as interface layer and therefore also printed in PLA….

Have I missed a setting?

Snapmaker Orca Beta 2.3.0

Thanks!