Use larger pneumatic fitting diameter
Adjust pneumatic bowden trap position
Increase bowden trap wall thickness

Need a bit more strength to avoid splitting while threading
Adjust heatbreaktube_offset

It's a little off-center
Shorten bowden_trap_height

24mm might be a little too tall.
Expand sun gear's collar
Fix missing sun_outer_d variable
Adjust filament path offsets on both alublock and planetary-extruder models