The process extrudes molten ABS plastic material, layer by layer, to build a 3D model. As the material is played, it cools and fuses together with the previous layer.
The build material is added to the FDM machine in a filament form contained in a cartridge. The FDM machine feeds the material from the cartridge up to a head that heats and melts the material. The head traverses in an X and Y direction and extrudes material onto a platform to create a two-dimensional cross-section of the model.
This type of 3D printing has been around for decades and it has its uses. Typically FDM is used for fit, some function, but mostly proof of concept.
We offer the following 3D printing services. Before choosing the right service for your project, take the time to understand each process.
Although 3D printing has become the big buzz over the past few years, the technology is over 30 years old. Given the limitations on quality and speed to make an individual part, 3D printing still lags behind in traditional methods such as injection molding and CNC machining. However, when proving concept and fit with some functionality requirements, 3D printing can be a good choice.
Consider the following chart when deciding which Rapid Manufacturing service is best for your project:
| Process Type | Prototype | Production Parts | Tolerance <.005 in | Quality | Timing | Plastic Material Selection | Price per Piece | Tooling Cost | Tooling Life Expectancy |
|---|---|---|---|---|---|---|---|---|---|
| 3D Printing |
Yes |
Yes
|
Limited
|
Low —
Medium
|
Fastest
|
Limited
|
Mid
|
N/A | N/A |
| Injection Molding |
Yes
|
Yes
|
Yes
|
High
|
Fast — Faster
|
Broad
|
Low
|
Low —
Mid
|
High
|
| CNC Machining |
Yes
|
Yes
|
Yes
|
High
|
Faster
|
Limited
|
High
|
N/A | N/A |
| Cast Urethane |
Yes
|
Yes
|
Limited
|
Medium
|
Faster
|
Limited
|
High
|
Low —
Mid
|
Low
|