Buildable Power Armor Frames is a free mod for Fallout 4. The main purpose of this mod is to let players build their own power armor frames from various scrap metal components. It is a very useful mod, especially for players that don't have access to the in-game power armor builder.

The main idea of the mod is that you can use the power armor frame that you build to equip yourself with various items. In order to do this, you need to find the various pieces of scrap metal that the mod provides. You will also need to create a special tool that can help you to combine the various components into a power armor frame.