3D Printing vs Rapid Prototyping

The Competitive Advantages Of 3D Printing

An ideal complement to CAD, 3D printing offers a fast, low-cost alternative to traditional rapid prototyping for building concept and working models. Designed for workstation and network access much like a standard laser printer, 3D printing is growing in usage along with the unprecedented growth of CAD solid modeling.

Cost Is A Big Difference

Both rapid prototyping (RP) and 3D printing technologies build models layer by layer from STL data. The cost difference per part between 3D printing and rapid prototyping systems can be significant. Including material, machine depreciation, system maintenance and labor, a part built using rapid prototyping technology can cost nearly twice as much compared to 3D printing.

More expensive rapid prototyping systems are often centrally located with a dedicated staff functioning much like an in-house service bureau. 3D printers are smaller, more affordable and suitable for installation near an end user providing convenience and ease of use that eliminates "departmental delay."

In-house Beats Outsourced

Enlisting a service provider to build prototype parts requires exchanging confidential STL data. Turnaround time depends on the quality and complexity of the STL file and can require additional CAD work.

While there are many variables in comparing service provider costs with internal 3D printing costs, i.e., part complexity, size and tolerances, etc., a company sending one relatively simple part per week to an outside service provider could, by comparison, pay for a 3D printer in a matter of months - and maintain control and confidentiality internally.