lightweight version, 2.5g vs 4.5g 9x9mm motor mount

print with PETG for heat resistance. You may want an insulation layer of paper under the motor. print on the side with tree support for strength. Hot glue for a temporary but strong mount, and alcohol releases cleanly. Also, there is a 3-degree downtilt to avoid ballooning when accelerating, shim with washers or cereal box cardboard to tweak.