FDM 3D Printing Guidelines • ABS Material Properties • FDM STL Upload Form
Exporting STL Files from SolidWorks • Exporting STL Files from CREO
Using Insight to Calculate STL Volume • Using Insight to Scale STL Files
Shapeways.com 3D Printing and Design Tutorials
One of the easiest machines in the lab to use, this Fused Deposition Modeling (FDM) 3D Printer rapidly prototypes parts and even entire assemblies out of white ABS plastic. This is no hobby-grade desktop machine; the Stratasys Fortus 250mc will pleasantly amaze you with its fine resolution, good finish, and strong intra-layer bonds. Thanks to the support material, which provides a foundation for overhanging parts, designers don't need to worry about positive drafts, holes in sidewalls, and other manufacturing details.
The 3D printer takes STL files, the most common 3D file format. When exporting STL files from your modeling software, if you get an option to select a resolution, there is no need to go smaller than 0.001 inches. The resolution of finished parts on the Fortus 250mc is 0.0095 inches, so increasing the STL resolution much beyond this won't result in increased part resolution.
The material used is a proprietary ABS plastic called ABS-Plus P430. Material properties such as Tensile Strength and Flexural Modulus are listed in the material datasheet. Costs are based on the total number of cubic inches of modeling material your part will use, with rates published below (see explanation of pricing rates):
|Material||Slice Height||Regular Price||Undergraduate Price|
|ABS: Ivory||0.013 inches||$22.50 per cubic inch||$10.00 per cubic inch|
|ABS: Blue, Red, Yellow, Black||0.013 inches||$22.50 per cubic inch||$10.00 per cubic inch|
* Regular price is a guide price only, actual cost may vary depending on complexity of build. Contact Dr Malcolm Cooke (firstname.lastname@example.org) with questions.
** Colored ABS parts are printed on a machine similar in build quality to the Fortus 250, thanks to a partnership with leading additive manufacturing company rp+m. Lead time for colored parts may be longer than lead time for Ivory parts depending on demand. Maximum dimensions for colored prints are 8 x 8 x 6 inches.
Build envelope (XYZ): 254 x 254 x 305 milimeters (10 x 10 x 12 inches)
Layer thickness is 0.013 inches. Parts are produced within an X-Y accuracy of ± 0.0095 inches, however accuracy is geometry dependent. Achievable accuracy specification derived from statistical data at 95% dimensional yield.