Set Linear Advance

Sets the Linear Advance K factor for pressure-based extrusion compensation. Helps reduce blobs and gaps at corners and speed changes.

Block

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Parameters

value: Linear advance K factor. 0 = disabled. Typical values: 0.01 to 0.5 depending on bowden/direct drive.

How it works

Set Linear Advance outputs M900 K{val} to configure the pressure advance algorithm. The K factor compensates for filament compressibility: higher values for Bowden setups, lower for direct drive. At 0, Linear Advance is disabled.

G-code output

Command	G-code
Set Linear Advance	M900 K{val}