The Main gear has two main parts. One is the landing gear itself. The other is a plate that mounts inside the fuselage so the screws don't rip through. I'd suggest using nylon screws/bolts to hold the two in place. That way the screws/bolts shear before the fuse is ripped apart. Just use some standard screws and lock nuts for the axles. (Edit 6/15) Successful test flight shows the main gear will work well. I'd suggest using 2" wheels on the main gear and a 1-3/4" wheel on the front landing strut. Added a all in one STL file. This includes some spacers you can put between the two plates. (Edit 7/20/14) Added the rest of the landing gear. I've had great success with the new landing gear. I would suggest printing at about 75% or more infill for everything. Otherwise you'll see sag and breakage.