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Prototype Services

What is Rapid Prototyping?
Rapid prototyping transforms 3D CAD data into physical models. Three-dimensional (3D) prototypes are produced with strong, durable materials, providing functional components to prove your design.

SPEP Provides Two Types of Rapid Prototypes:
See table below for comparison

  • Multi Jet Modeling (MJM)
  • Fused Deposition Modeling (FDM)

How can prototypes work for me?
Many companies have used prototypes to test-market an item without incurring large up front tooling expenses.
Engineers use prototypes for form-and-fit studies, testing, and “peace of mind” before investing in costly tooling.

How long does the process take?
After a 3-D file is made and fed into the prototype machine the process is completed in just hours as compared to the days or weeks needed for most other prototyping methods.

What factors determine the cost?
While the cost is a fraction of a “tooled” prototype, cost is determined by:

  • Part Dimensions – larger prototypes will require more material.
  • Finishing – Processes such as painting will add costs.
  • Development / Design – the process begins with an STL or 3-D CAD drawing. If you submit an STL file to us that is “ready to go”, your only cost will be for part material and if needed, finishing. If Sierra Pacific is involved with creating or modifying a 3-D CAD file, then additional costs will be incurred.

How to get started?
You can view our New Product Development Guide or Contact our Engineering Department.


ProJet 3500 HDMax
Projet 3500 HDMax Machine
Markforged x7
Markforged x7 machine
Layer Accuracy

.0013 inch (.033 mm) – HD (High Definition)


.0013 inch (.033 mm) – HS (High Speed)

.0011 inch (.028 mm) – UHD (Ultra High Definition)

.0006 inch (.015 mm) – XHD (Xtreme High Definition)

From .002 to .009 in. (.051 to .229 mm)
Build Size 11.75 x 7.3 x 8 in. (300 x 185 x 203 mm) 13 x 10.6 x 7.9 in. (330 x 269 x 201 mm)
Material UV Cured White ABS-like Plastic Matte Black Onyx Plastic