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Fix bed temperature drop on layer 2 in multi-material prints#332

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defer:defer/multimaterial-bed-temp
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Fix bed temperature drop on layer 2 in multi-material prints#332
defer wants to merge 1 commit into
Snapmaker:mainfrom
defer:defer/multimaterial-bed-temp

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@defer defer commented May 18, 2026

Description

In mixed-material prints (e.g. PLA at 65°C + TPU at 35°C), the bed temperature was set using only the first extruder's "other layers" value. When that happens to be the lower-temp material, the bed temp would drop on layer 2 and cause adhesion failures for the higher-temp one.

Screenshots/Recordings/Graphs

No relevant UI changes.

Tests

Manually tested as this code path is not unit tested.

In mixed-material prints (e.g. PLA at 65°C + TPU at 35°C), the bed
temperature was set using only the first extruder's "other layers"
value. When that happens to be the lower-temp material, the bed
temp would drop on layer 2 and cause adhesion failures for the
higher-temp one.
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