prEN ISO/ASTM 52921

Additive manufacturing - General principles - Standard practice for part positioning, coordinates and orientation (ISO/ASTM DIS 52921:2019)

Additive Fertigung - Grundlagen - Standardpraxis der Positionierung, Koordinaten und Ausrichtung des Bauteils (ISO/ASTM DIS 52921:2019)

Fabrication additive - Principes généraux - Pratique normalisée pour le positionnement, les coordonnées et l'orientation de la pièce (ISO/ASTM DIS 52921:2019)

Aditivna proizvodnja - Splošna načela - Standardna praksa za pozicioniranje, koordinate in orientacijo delov (ISO/ASTM DIS 52921:2019)

General Information

• Status: Not Published
• ICS: 25.030 - Additive manufacturing
• Technical Committee: CEN/TC 438 - Additive Manufacturing
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Due Date: 15-Sep-2022
• Completion Date: 15-Sep-2022
• Ref Project: oSIST prEN ISO/ASTM 52921:2019 - Additive manufacturing - General principles - Standard practice for part positioning, coordinates and orientation (ISO/ASTM DIS 52921:2019)

RELATIONS

• Revised: EN ISO/ASTM 52921:2016 - Standard terminology for additive manufacturing - Coordinate systems and test methodologies (ISO/ASTM 52921:2013)
• Effective Date: 01-Aug-2018

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN ISO/ASTM 52921:2019
01-december-2019
Aditivna proizvodnja - Splošna načela - Standardna praksa za pozicioniranje,
koordinate in orientacijo delov (ISO/ASTM DIS 52921:2019)

Additive manufacturing - General principles - Standard practice for part positioning,

coordinates and orientation (ISO/ASTM DIS 52921:2019)

Additive Fertigung - Grundlagen - Standardpraxis der Positionierung, Koordinaten und

Ausrichtung des Bauteils (ISO/ASTM DIS 52921:2019)

Fabrication additive - Principes généraux - Pratique normalisée pour le positionnement,

les coordonnées et l'orientation de la pièce (ISO/ASTM DIS 52921:2019)
Ta slovenski standard je istoveten z: prEN ISO/ASTM 52921
ICS:
25.030 3D-tiskanje Additive manufacturing
oSIST prEN ISO/ASTM 52921:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO/ASTM 52921:2019
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oSIST prEN ISO/ASTM 52921:2019
DRAFT INTERNATIONAL STANDARD
ISO/ASTM DIS 52921
ISO/TC 261 Secretariat: DIN
Voting begins on: Voting terminates on:
2019-09-27 2019-12-20
Additive manufacturing — General principles — Standard
practice for part positioning, coordinates and orientation

Terminologie normalisée pour la fabrication additive — Systèmes de coordonnées et méthodes d'essai

ICS: 25.030
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/ASTM DIS 52921:2019(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019
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oSIST prEN ISO/ASTM 52921:2019
ISO/ASTM DIS 52921:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/ASTM International 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be

reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on

the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below

or ISO’s member body in the country of the requester. In the United States, such requests should be sent to ASTM International.

ISO copyright office ASTM International
CP 401 • Ch. de Blandonnet 8 100 Barr Harbor Drive, PO Box C700
CH-1214 Vernier, Geneva West Conshohocken, PA 19428-2959, USA
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
Email: [e-mail] Email: [e-mail]
Website: www.iso.org Website: www.astm.org
Published in Switzerland
ii © ISO/ASTM International 2019 – All rights reserved
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oSIST prEN ISO/ASTM 52921:2019
ISO/ASTM DIS 52921:2019(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Coordinate systems for additive manufacturing machines with different build directions .1

4.1 Coordinate system for additive manufacturing with upwards z-positive build direction ..... 1

4.2 Coordinate system for additive manufacturing with downwards z-positive build

direction ........................................................................................................................................................................................................ 2

4.3 Coordinate system for additive manufacturing with horizontal z-positive build direction . 2

5 Rule for positive rotation ............................................................................................................................................................................. 3

6 Bounding box ........................................................................................................................................................................................................... 3

6.1 Bounding boxes and orientation ............................................................................................................................................. 4

7 Initial Build Orientation ............................................................................................................................................................................... 5

7.1 Variations of initial build orientation of parts with identical orthogonal notation

orientation .................................................................................................................................................................................................. 6

8 Orthogonal orientation notation ......................................................................................................................................................... 7

8.1 Bilateral symmetry .............................................................................................................................................................................. 8

8.2 Abbreviation of orthogonal orientation notation ..................................................................................................... 9

9 Representation of part location and initial build orientation .............................................................................. 9

10 Representation of part location and reorientation .......................................................................................................10

Bibliography .............................................................................................................................................................................................................................12

© ISO/ASTM International 2019 – All rights reserved iii
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oSIST prEN ISO/ASTM 52921:2019
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Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso

.org/iso/foreword .html.

The committee responsible for this document is ISO/TC 261, Additive manufacturing, in cooperation

with ASTM Committee F42, Additive Manufacturing Technologies, on the basis of a partnership

agreement between ISO and ASTM International with the aim to create a common set of ISO/ASTM

standards on Additive Manufacturing.

This second edition of ISO/ASTM 52921 replaces first edition (ISO/ASTM 52921:2013), which has been

technically revised.
The main changes compared to the previous edition are as follows:

— Terms and definitions that are included in ISO/ASTM 52900:2019 "Additive manufacturing —

General principles — Fundamentals and vocabulary" have been removed from this document and

instead referred to ISO/ASTM 52900;

— Since the list of terms and definitions have been removed from this edition, it is therefore not a

standard terminology anymore, and therefore it has been renamed so that the title describes the

actual content of the standard;

— The remaining normative content of the document including the annex have been consolidated into

one single normative document;

— Specifications of some aspects of initial build orientation and orthogonal orientation notation have

been integrated in the text body of the document;

— The coordinate system for additive manufacturing with horizontal z-positive build direction is

described and illustrated.
iv © ISO/ASTM International 2019 – All rights reserved
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Introduction

Although many additive manufacturing systems are based heavily upon the principles of Computer

Numerical Control (CNC), the coordinate systems and nomenclature specific to CNC are not sufficient to

be applicable across the full spectrum of additive manufacturing equipment. This International Standard

expands upon the principles of ISO 841 and applies them specifically to additive manufacturing.

Although this International Standard is intended to complement ISO 841, if there should arise any

conflict, it is this International Standard shall have priority for additive manufacturing applications.

For any issues not covered in this International Standard, the principles in ISO 841 may be applied.

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oSIST prEN ISO/ASTM 52921:2019
DRAFT INTERNATIONAL STANDARD ISO/ASTM DIS 52921:2019(E)
Additive manufacturing — General principles — Standard
practice for part positioning, coordinates and orientation
1 Scope

This document provides specifications and illustrations for the positioning and orientation of parts

with regards with coordinate systems and testing methodologies for additive manufacturing (AM)

technologies in an effort to standardize the method of representation used by AM users, producers,

researchers, educators, press/media, and others, particularly when reporting results from testing of

parts made on AM systems. Specifications included cover coordinate systems and the location and

orientation of parts. It is intended, where possible, to be compliant with the principles of ISO 841 and to

clarify the specific adaptation of those principles for additive manufacturing.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO/ASTM 52900:2019, Additive manufacturing — General principles — Fundamentals and vocabulary

ISO 841:2001, Industrial automation systems and integration — Numerical control of machines —

Coordinate system and motion nomenclature
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO/ASTM 52900 shall apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Coordinate systems for additive manufacturing machines with different build
directions

The location and orientation of a part within the build volume shall be specified using coordinates in a

three-dimensional coordinate system. The coordinate system can be Cartisian or otherwise defined by

the machine manufacturer. Examples of different types of coordinate systems are illustrated in Figures

1, 2 and 3.
4.1 Coordinate system for additive manufacturing with upwards z-positive build
direction

A three-dimesnional Cartesian coordinate system located at the build origin for a generic additive

manufacturing process using upwards z-positive building direction, is illustrated as seen from the front

of the machine in Figure 1. This is the most common type of coordinate system and is used for processes

within all defined additive manufacturing process categories, though other types of coordinate systems

can be used for specific process solutions within some process categories.
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