YCOPTER

thingiverse

A tricopter design based on RCExplorer, this YCOPTER model keeps costs low by requiring minimal non-printed parts and no component hacking. It's compatible with RotorBits parts from HobbyKing such as motor mounts, servo mount sets, and carbon fiber square tubes. Check out new photos showcasing these parts. The KK2 flight controller case can be found here while the APM 2.5 flight controller case is available here. Print and assemble using zip-ties, with a photo illustrating their locations. The tricopter supports standard RCExplore motors and servos but may accommodate other components. Additional parts include bass wood or carbon fiber booms for front arms measuring 275mm and tail arm at 245mm in length. Arm pivots require 3mm, 25mm bolts with washers and lock-nuts; drill the tail boom for a 5mm x 50mm bolt with washers. Printed tail motor mounts need a reamed hole for a perfect fit. Lubricate the hole with Teflon or graphite powder. Use 50lb Spectra fishing line as control cables, stringing them as shown in the photo and wrapping rubber bands to take up slack. Mount servos using #4, 3/8" wood screws. O-rings keep arms in place during flight; remove for transport. Post-assembly, improve rigidity with epoxy adhesive on joins between printed parts and non-printed components.