3D printers that run on Fused Deposition Modeling Technology build parts layer-by-layer from the bottom up by heating and extruding thermoplastic filament. The 3D printer heats the thermoplastic to a semi-liquid state and deposits it in ultra-fine beads along the extrusion path. Where support or buffering is needed, the 3D printer deposits a removable material that acts as scaffolding. Upon completion, the user breaks away support material or dissolves it in detergent and water, and the part is ready to use.
Interested in learning more about FDM Technology? Take a look at some frequently asked questions:
What file format do I need to process a part for my Fused Deposition Modeling (FDM) system?
The Extended Version — The process of 3D printing begins with a 3D CAD model. After the 3D model is created, it is exported as an STL file. The STL file is then imported into one of two Stratasys software program, Insight or Catalyst, depending on the intended printer. Within the Stratasys software, the user will determine the tool path for the 3D printer to create the model made from durable thermoplastics.
What tolerances are Stratasys FDM 3D Printers capable of holding?
The Short Answer — Tolerances are a function of the system producing the part and the overall size of the part.
The Extended Version — For the Mojo, Dimension, and uPrint systems there is no standard tolerance. Dimensional accuracy will vary based upon part size, geometry, and orientation. These systems are designed to produce concept 3D models which do not typically require accuracy down to a few thousandths of an inch.
The Fortus 360mc and 400mc large and small systems deliver an accuracy of ± 0.005 inch or ± 0.0015 in./ in. (± 0.127 mm or ± 0.0015 mm/ mm), whichever is greater.*
The Fortus 900mc parts are produced within an accuracy of ± 0.0035 inch or ± 0.0015 in./in. (± 0.089 mm or ± 0.0015 mm/ mm), whichever is greater.*
*Note: Accuracy is geometry dependent. Achievable accuracy specification is derived from statistical data at 95% dimensional yield.
What is the minimum thickness Stratasys FDM machines can print? (also known as resolution)
The Extended Version — The minimum layer thickness varies between material and machine. The layer thickness can vary between 0.005 inches (0.127mm) and 0.013 inches (0.330mm). The user has the ability to choose a desired thickness based on the printer, the application, part intent, and material capabilities.
What materials are offered when using a Stratasys FDM 3D Printer?
The Short Answer — FDM Technology uses ten different thermoplastics.
The Extended Version — Stratasys offers ten different types of thermoplastics, which are dependent on the 3D printer. Each material has unique properties to fit the need of a variety of applications.
Does Stratasys offer translucent materials for FDM systems?
The Short Answer — Yes, Stratasys offers two options for translucent materials called ABSi-translucent and PC-ISO translucent.
The Extended Version — Stratasys does offer two translucent materials called ABSi-translucent and PC-ISO-translucent which work great for conceptual modeling, functional prototyping, and direct digital manufacturing. ABSi-translucent comes in clear, red, and amber tints. The ABSi-translucent and PC-ISO-translucent material are available on the Fortus 400mc and 900mc.
Can I print a model with multiple colors?
The Extended Version — FDM allows users the choice of multiple colors throughout a single part. Using Stratasys proprietary software, a user can add a pause between any layers of a build. When the machine is paused the operator can load a canister of a different color and resume building on top of the previous color. This can only be done with various colors of the same material, and only on 3D Printers that use Insight Software.
Can we print hollowed or partially filled models for cost/weight reduction?
The Short Answer — Yes, when processing your parts in Catalyst or Insight you can create different internal properties to allow for less material to be used.
The Extended Version — Catalyst software which comes with the purchase of a uPrint or Dimension 3D Printer allows users to choose the model interior make up. There are three options: Solid, Sparse – high density, and Sparse – low density.
Insight software which comes with the purchase of a Fortus3D Production System allows users to modify the interior model with solid and sparse fills as well, creating a custom fill by using advanced tools within the software.
Where can I get a prototype or small quantity produced without purchasing a 3D printer?
The Short Answer — Graphics Systems!
The Extended Version — Getting a quote is fast and easy! Start your free quote today!
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