Laser instructions shouldn't need a visa to travel between powder bed fusion machine brands. The 3MF Consortium's new Toolpath Extension could make that possible by letting manufacturers share, inspect, and validate laser instructions without getting tangled in proprietary formats. The open specification keeps toolpaths and original part geometry together in one 3MF file, with support for variable laser settings, multiple lasers, and complex build sequences. It's particularly promising for tricky structures like graded lattices.