Simple Landing Gear with Retract Option

thingiverse

I was looking for some small, lightweight wheels that I could use on the bottom of an RC EDF jet. I needed the wheels to be free spinning and as light as possible. I printed 3 of these complete models, but I didn't use the retract option at first. I used double stick tape to attach them to the bottom of the jet. When I tested this inside my house, the jet rolled along the ground at only a quarter throttle. Retract Option - For this to work, I had to make some mods on the bottom of the jet to accommodate the wheels inside the body/wings. It was not easy to make the wheels fit inside the wings so the wings have a hole in them now (shape of the base side view). The hole is visible and open when the landing gear is down. As soon as the landing gear is retracted, the hole in the wing is filled with the landing gear main body side view. I have the retracts folding in to the left and folding out to the right. I used micro servos for this, one servo per wheel. Model was designed using FreeCad. Print Settings Printer Brand: RepRap Printer: Mendel Rafts: No Supports: No Resolution: 0.2 Notes: Model was printed using RepHost Cura Printer Settings: Print Speed: 100mm/s -Extruder heat: 200c Bed Heat: 65c Shell: 0.8 Top/Bottom thickness: 0.6 Infill: 5 - 10 % Print time = 30 minutes (max) per complete model. I designed this using FreeCad.