Boeing 737 Ceiling Flyer

thingiverse

When suspended from the ceiling, the aircraft will soar in circles under its own power. If there's a lot of interest, I might release more planes, including some actual propeller-driven models with twin engines. Give it a thumbs up if you want to see more. Watch it fly with a shorter propeller at a slower pace: https://youtu.be/3tPDYEYpzAM Or watch it zoom by with a longer propeller and bigger loops: https://youtu.be/QQKlanOFjk4 Here's what you'll need: 1) A motor, switch, and battery case (a set of 5 each costs $12): http://a.co/elPTgfI 2) Steel rods (20 of them cost $7.87), 50mm long: http://a.co/7UfjWzZ [You can skip the rods if you use the "Shaft and Prop", but they work better.] 3) M3 screws, 5-10mm x 2 4) Two AA batteries 5) A soldering iron, flux, and solder 6) Transparent filament to suspend the plane, about 100cm long 7) Screws to mount the axis to the ceiling 8) Glue (either E6000 or cyanoacrylate) 9) A hot glue gun A note on printing: The body and wings part should be printed upside-down and rotated 45 degrees to fit on a 20x20cm build plate. This model can't be printed on a smaller plate if you want to install the motor and batteries. Here's how to assemble it: 1) Insert the engine in the tail with the wires facing up, then glue the tail to the lower fuselage. 2) Glue the nose cone to the lower fuselage. 3) Remove the electrical hardware from the battery compartments (spring and grommet) with the wires still attached. You can use nippers for this easily. 4) Use a hot glue gun to secure the electrical hardware in place on the lower fuselage. Be careful not to cover the conducting parts that will touch the batteries. 5) Pass the red wire from the motor through the fuselage, into the nose cone, and out the rectangular hole at the top of the nose. 6) Pass the red wire from the battery compartment into the nose cone and out the rectangular hole. 7) Solder the red wires to each terminal on the switch. 8) Solder the black wire at the back of the battery terminal to the motor's black terminal. 9) Insert 2 AA batteries, then screw on the fuselage top. 10) Insert the 2mm steel rod into the coupler and push it through the hole in the back of the tail onto the motor spindle. If you're using the "Shaft and Prop", you won't need this rod. 11) Attach the propeller to the back of the steel rod. 12) Hang from the ceiling axis, flip the switch, and watch it fly!