RapMan is a commercial 3D printing machine developed by Bits From Bytes which users assemble. It uses SD cards for it's files.
The 3D Model to G-Code File for Rapman page contains instructions for how to convert a 3D model into a G-code file usable by RapMan.
There is an overview of getting Rapman going on the Bits From Bytes wiki.
There is also a trouble-shooting guide.
See: Rapman protocol
