A characteristic that a lot of 3D printers share is having wires running all over them. These are often neatened in places with cable ties, but they still look scruffy and often get in the way of the machine moving,
Bye Bye Wires
RepRap Lorenz’s First Test
Bye Bye Belts! RepRap Lorenz does not use timing belts. Instead it is driven by wire wound helically on a pulley on each stepper motor. The error caused by the change in wire angle as the helix winds 300mm of wire is about