ASTM ISO/ASTM52915-13
(Main)Standard Specification for Additive Manufacturing File Format (AMF) Version 1.1
Standard Specification for Additive Manufacturing File Format (AMF) Version 1.1
SCOPE
1.1 This specification describes a framework for an interchange format to address the current and future needs of
additive manufacturing technology. For the last three decades, the STL file format has been the industry standard for transferring information between design programs and additive manufacturing equipment. An STL file contains information only about a surface mesh and has no provisions for representing color, texture, material, substructure, and other properties of the fabricated target object. As additive manufacturing technology is quickly evolving from producing primarily single-material, homogenous shapes to producing multimaterial geometries in full color with functionally graded materials and microstructures, there is a growing need for a standard interchange file format that can support these features.
1.2 The additive manufacturing file (AMF) may be prepared, displayed, and transmitted on paper or electronically, provided the information required by this specification is included. When prepared in a structured electronic format, strict adherence to an extensible markup language (XML)schema is required to support standards-compliant interoperability. The adjunct to this specification contains a W3C XML schema and Annex A1 contains an implementation guide for such representation.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.4 This standard also does not purport to address any copyright and intellectual property concerns, if any, associated with its use. It is the responsibility of the user of this standard to meet any intellectual property regulations on the use of information encoded in this file format.
General Information
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ISO/ASTM52915:2013(E)
Standard Specification for
1
Additive Manufacturing File Format (AMF) Version 1.1
This standard is issued under the fixed designation ISO/ASTM 52915; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision.
1. Scope 2.1.1 This section provides definitions of terms specific to
thisstandard—thesetermsalsoincludethecommontermsseen
1.1 This specification describes a framework for an inter-
in many documents related to extensible markup language
change format to address the current and future needs of
(XML) and additive manufacturing. See also Annex A1 for
additive manufacturing technology. For the last three decades,
definitions of additional terms specific to this specification.
the STL file format has been the industry standard for trans-
2.1.2 attribute, n—characteristicofdata,representingoneor
ferring information between design programs and additive
more aspects, descriptors, or elements of the data.
manufacturing equipment. An STL file contains information
2.1.2.1 Discussion—In object-oriented systems, attributes
only about a surface mesh and has no provisions for represent-
are characteristics of objects. In XML, attributes are charac-
ing color, texture, material, substructure, and other properties
teristics of elements.
of the fabricated target object. As additive manufacturing
2.1.3 comments, n—all text comments associated with any
technology is quickly evolving from producing primarily
data within the additive manufacturing file (AMF) not contain-
single-material, homogenous shapes to producing multimate-
ing core relevant, technical, or administrative data and not
rial geometries in full color with functionally graded materials
containing pointers to references external to the AMF.
and microstructures, there is a growing need for a standard
interchange file format that can support these features.
2.1.4 domain-specific applications, n—additional, optional
sets of AMF data elements specific to such areas as novel
1.2 The additive manufacturing file (AMF) may be
additive manufacturing processes, enterprise workflow, and
prepared, displayed, and transmitted on paper or electronically,
supply chain management.
provided the information required by this specification is
2.1.4.1 Discussion—Data sets for optional AMF domain-
included. When prepared in a structured electronic format,
2
specific applications will be developed and balloted separately
strict adherence to an extensible markup language (XML)(1)
from this specification.
schema is required to support standards-compliant interoper-
ability. The adjunct to this specification contains a W3C XML
2.1.5 extensible markup language, XML, n—standard from
schema and Annex A1 contains an implementation guide for
the WorldWideWeb Consortium (W3C) that provides for
such representation.
tagging of information content within documents offering a
means for representation of content in a format that is both
1.3 This standard does not purport to address all of the
human and machine readable.
safety concerns, if any, associated with its use. It is the
2.1.5.1 Discussion—Through the use of customizable style
responsibility of the user of this standard to establish appro-
sheets and schemas, information can be represented in a
priate safety and health practices and determine the applica-
uniform way, allowing for interchange of both content (data)
bility of regulatory limitations prior to use.
and format (metadata).
1.4 This standard also does not purport to address any
copyright and intellectual property concerns, if any, associated
2.1.6 STL (file format), n—file format native to the stereo-
with its use. It is the responsibility of the user of this standard
lithography computer-aided drafting (CAD) software that is
to meet any intellectual property regulations on the use of
supported by many software packages; it is widely used for
information encoded in this file format.
rapid prototyping and computer-aided manufacturing.
2.1.6.1 Discussion—STL files describe only the surface
2. Terminology
geometry of a three-dimensional object as a tessellation of
2.1 Definitions of Terms Specific to This Standard: triangles without any representation of color, texture, or other
common CAD model attributes.The STLformat specifies both
the American Standard Code for Information Interchange
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This specification is under the jurisdiction of ASTM Committee F42 on
(ASCII) and binary representations.
Additive Manufacturing Technologies and is the direct responsibility of Subcom-
mittee F42.04 on Design, and is also under the jurisdiction of ISO/TC 261.
Current edition approved April 9, 2013. Published May 2013. Originally 3. Key Considerations
published as ASTM F2915-11. Last previous edition ASTM F2915-12.
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3.1 There is a natural a tradeoff betw
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