Prototype Companies Specializing In 3d Prototyping

An executive who asks for 3-D prototyping services from an outside company needs to know the inevitable follow-up process. There are several rapid-prototyping techniques that are used, depending on the client's desired timetable. Many companies request selective-laser sintering (SLS) and fused-deposition modeling (FDM) to expedite the prototyping process.

Choose the Right Method of 3-D Prototyping

The main benefit of SLS is the ability to create models with materials used in final production. SLS prototyping involves the use of a UV laser to combine particles of desired materials, based on dimensions run through the CNC machine. The bed of powder that acts as the table during SLS prototyping loses thickness as new production material is applied. The final result is hundreds of layers fused together by the heat of a strong laser.

FDM prototyping provides greater flexibility in terms of shaping 3-D prototypes than SLS. The fundamental piece in FDM machines is the extrusion nozzle, which is heated during production to make modeling materials malleable. This nozzle can move on the X, Y and Z axis within a CNC machine to produce 3-D models out of plastics, metals and ceramics.

The expense of procuring SLS and FDM prototyping must be balanced against accuracy and production speed. These methods require more time than stereolithography (SLA), but both techniques have evolved from industry concerns about the accuracy of final prototypes. The hundreds of cross-sections used in SLS and FDM prototyping generate rapid 3-D prototypes that exceed customer demands.

JH May is a company in London that provides 3-D prototyping and model-making services. The production facility features three CNC-milling machines and 7,000 square feet of space.