Bambu Lab’s patent application proposes a machined heating path inside a bed body, an attempt to spread heat more evenly toward the corners where large prints can lift. It is a hardware approach to a familiar first-layer problem.

The filing is not proof of a performance gain or a product announcement. Replacement cost and manufacturing complexity remain unknown.

Action: inspect the patent drawings and compare the idea with the H2D’s current bed. There is nothing to order.