Currier Plastics will closely work with you to select the best method for developing your new bottles, closures or components. Converting CAD drawings into rapid prototype models will help to create confidence in:

  • Aesthetics
  • Specific design characteristics
  • Functionality
  • Marketing
  • Pre-production requirements
  • Moving forward with your production tool build

Stereo Lithography (SLA) uses an additive fabrication method where a UV-sensitive photopolymer resin is cured by a laser to build parts a layer at a time. Parts are traced by the laser beam on the surface of the photopolymer, causing it to cure and solidify the prototype layer. After each layer has been traced, the build platform lowers the part by a single layer thickness, typically 0.002″ to 0.006″, and sweeps a blade filled with photopolymer (“resin”) across the part to deposit fresh SLA resin. This creates a new surface for the part and a subsequent layer is traced, fusing it to the previous layer.

a 3D molded test fixture set next to aluminum test fixture.

Digital 3D printing models are very similar to stereo lithography or SLA models, which use a photosensitive polymer to create 3D models. The method of application with digital 3D printed parts allows parts to be created with more accuracy and detail than with SLA. The accuracy nearly eliminates the standard stair-stepping found in other rapid prototyping processes.

Fused Deposition Method (FDM) process is an additive which extrudes material in layers. A plastic filament is melted and extruded through a heated nozzle. The nozzle moves to produce a profile of the part then moves down and the next layer is built on top until the entire prototype model is fully built. The model is complete and requires no hardening.

Aluminum Single Cavity molding is most effective when you need a short run of parts that closely match the appearance of production parts, and/or when you need parts that have many of the functional characteristics of production materials.