 Although the aim of the project is for RepRap to be able to autonomously construct many of its own mechanical components soon using fairly low-level resources, several components such as sensors, stepper motors and microcontrollers cannot yet be made using the RepRap's 3D printing technology and so have to be produced independently.The plan is to approach 100% replication over a series of versions.For example, from the onset of the project, the RepRap team has explored a variety of approaches to integrating electrically-conductive media into the product.