You’re probably best off using blend2bam. panda3d-blend2bam · PyPI
Here’s my currently working Actor exporting script:
blend2bam -m pbr --pipeline gltf --animations separate npc_1_animated.blend npc_1.bam
Note that this makes separate .bam files for the mesh and Armature Action. Only apply the .bam ‘ArmatureAction’ file resulting from the blend2bam command line converter program to it’s corresponding .bam mesh, using the Actor system.
A few of us are working on new exporters, including a proper .bam exporter, but these are for the most part experimental projects right now.
Here’s a recent thread with some details: Exporting from Blender: A Quick-Reference