Here's how I made my own carbon fiber landing gear for the little Extra. Later I'll add some photos showing the actual construction steps in progress but here's a few notes until then.
The gear with 1.75" (DB electric LF) wheels and axles weighs only 1.25 ounces (37g) and is even still a little stiffer than it needs to be for the 28 ounce plane. It seems indestructable too, won't bend or distort ever.
Here's my technique:
Using .007" CF laminate (not the iron on stuff), make several strips
which will be laminated to make up the desired thickness. For the
little Extra I used 8 strips, 1"x12".
You will make up a form by putting nails into a piece of wood like 3/4" plywood. The CF strips will bend around the nails. Depending on the shape of the gear, it may take very few nails. Practice bending the strips to see how tight a curve you can make. Make a drawing of the gear for a pattern. Place the pattern on the plywood, cover it with waxed paper, and drive in the nails around the pattern as a guide. Use finish nails so the heads don't get in the way later. Make sure the nails are square to the wood.
Trial fit all the strips into the form by stacking them then inserting the bundle into the form. They must fit this way before you actually laminate them. Modify the form if necessary by moving nails until the bundle of CF strips can be inserted with without too much difficulty.
You may add a couple degrees of toe-in to the gear by bending the nails slightly where the axles will attach.
Now, you will laminate the gear. First clean the strips with alcohol and lightly sand the surface to remove any contamination that could prevent a good bond.
Use only a slow curing epoxy to laminate (I like West systems). DO NOT thin the epoxy! Starting with the first strip coat one side thoroughly with the epoxy using a brush. For the next strip coat one side, and place it on the previous strip with the coated sides together, run your finger along it (wearing gloves) to spread the lamination evenly, then coat the exposed top side. Repeat for all the rest of the strips except the last, which will only be epoxied on one side.
Take the bundle of epoxied CF strips and using a paper towel, squeeze the excess epoxy out by wiping from one end to the other firmly a few times until it seems no more is oozing out from between the laminations.
Place the bundle into the form as practiced and make sure all the laminations are even. Let it cure for at least 24 hours before removing it from the form. DO NOT remove it from the form early!
After its fully cured and you remove it from the form you can cut the legs to a taper if you like. Sand it smooth and round the edges. Drill for axles and mounting holes.
This makes a practically bullet proof landing gear that is extremely light, attractive, and aerodynamic.