E-Flite Opterra 1.2m landing gear version 3

This is my 3rd version of landing gear for the E-flite Opterra. Version 1 and 2 used double sided tape to attach to the unmodified keel of the plane. On a semi-hard landing I managed to break the plastic keel instead of having the tape come loose.

This version completely replaces the existing keel with a 3d printed one.

This is a big print. It requires a 300x300 printer to fit diagonally as it prints all as one piece.

It has a little winglet on it just to blend in the rear wheel arms that help give some support to the landing gear wires.

I use RC Canopy glue to attach it where the existing keel used to be.

To install:

1. Gently pull the original black plastic keel off.

   • The glue used is a white caulk like substance so it does not actually take much force.

2. Dry fit new keel onto plane.

3. Mark where the servo goes.

4. Cut a hole in the foam of the keel just deep enough for the servo to sit flat in the keel.

   • If done right only a tiny bit of the back of the servo will poke through (see pic). The piece of foam you cut out is more of a wedge shape when viewed from the side.

5. once you are satisfied with the fit. use a flexible, low-bond strength glue to attach the gear to the plane (you want the glue to break in a crash so it is repairable.)

   • I used Sig Canopy Glue.

I used 3/32 wire for the gear. It should be tall enough to have at least 1 inch - 3cm of prop clearance when sitting on the wheels.

Print Settings

Printer:

Tenlog D3 Pro

Rafts:

No

Supports:

No

Resolution:

.20

Infill:

20

Filament: