Medial Axis with Polyline Support structure
Fusion Manufacturing Extension
This feature is part of an extension. Extensions are a flexible way to access additional capabilities in Fusion. Learn more.
The Medial Axis with Polyline Support 
tool creates a secondary type of additive support structure intended to be used with a Polyline Support.
This type of support adds polyline walls in places too small to be covered by volume supports. The supports are between the part and the build platform, or between two surfaces on the same part. The walls are typically thin and can be featureless or structured with a specified pattern.
Note: This feature is available only when you select a machine with additive MPBF or SLA/DLP capabilities.