A String Biplane model with spinning propellor and wheels.

Print the Biplane file at 0.3mm layer height and if using Bambu Studio make sure your wall generator is set to Arachne.

All parts are printed without supports

I found a brim allowed me to print the front file at a faster speed.

To assemble place the 'propellor back' into  the 'engine', push the propellor through and screw in place, then screw the engine and propellor into the front of the Biplane.