Hello everyone. Now I will show you how I make the dropouts.The first step is to pile up several layers of prepreg carbon fiber sheets (about 30). Once it cures, it will create a solid and very rigid carbon sheet about 3 mm thick, enough to extract very strong and light dropouts. The picture below shows the different layers of prepreg carbon fiber being laid up on top of a aluminum plate which has been thoroughly polished and treated several times with release agent.

carbon sheet.jpg