During a normal day in the life of a Rapid Prototyping (RP) service bureau, an unusual phone call came without warning. Francis Pelletier, an Architect/Digital Simulation Specialist from the Public Works of Canada in Ottawa, Ontario was on the other end of the phone, looking for someone to build an architectural model of a building setfor some renovations in the near future. The requirements were that the model needed to be made in I :200th and I :500th scale and the parts needed to be made strictly from 3-dimensional (3D) CAD data. This was so the architects working on the project could have physical scaled models with which to work with before, during and after the renovation work was done. This kind of service was not available in Canada at the time ofthe actual project. No RP service bureau in Canada was available to take on this large scale project, and complete it in a timely manner.