ZMR250-X LOS-Trainer

This Quadcopter is for only one purpose: Training LOS skills with a 250-class multicopter.

Warning: The mid-plate (zmr250-x2-mid.stl) should be made from CF-Board. It suffers the same problems as all similar designs: The 3D-printed part is not tough, PLA printed parts will crack because of vibrations. After some time the part will look like shattered security glass, with cracks all over.

You need 3mm ZMR 250 spare arms, get 4 of them for about 10$ at ebay.

Get 4 small zipties that fix