endstream endobj 968 0 obj <> endobj 969 0 obj <> endobj 970 0 obj <> endobj 971 0 obj <>stream t� ����e�� �; ����g!إVy���@� `v{ Chapter 2: Orthographic Projection 2 - 2 Figure 2-1: Orthographic projection. ♦ Use AutoCAD’s AutoSnap and AutoTrack features. 0000001477 00000 n DOWNLOAD THIS PDF DOCUMENT SO THAT YOU CAN ACCESS IT ANYTIME AND PRINT ANY PAGE THAT YOU MAY WANT TO USE The following pages contain information and exercises about ORTHOGONAL / ORTHOGRAPHIC DRAWING Term used in Victoria Term used in New Zealand ISOMETRIC DRAWING They can be used for: 0000002569 00000 n O. Draw the isometric view of a cube with side lengths 25 mm ... orthographic views will also be parallel in the isometric drawing . Orthographic Projections Orthographic Projections is a technical drawing in which different ... Steps to draw projections. Orthographic Drawings Used to show details of the front, top and right side views Uses 3 views Used to provide dimensions and special shapes by using different line types. 963 11 0000002053 00000 n 0000000995 00000 n Second Angle System. View Step-by-step guide to drawing orthographic views (3).pdf from MEM 201 at Drexel University. 0 Orthographic projection technique can produce either pictorial drawings that show all three dimensions of an object in one view, or multi-views that show only two dimensions of an object in a single view. 0000001732 00000 n Two projection lines indicate where the dimension starts and finishes. ♦ Be able to perform 1st and 3rd Angle projections. Qf� �Ml��@DE�����H��b!(�`HPb0���dF�J|yy����ǽ��g�s��{��. In this way the following four systems are formed: 1. ♦ Be able to perform 1st and 3rd Angle projections. 634 0 obj <>stream Orthographic Projection A parallel projection technique in which the plane of projection is perpendicular to the parallel line of sight. ♦ Using the AutoCAD Running Object Snaps options. TV is a view projected on … �tq�X)I)B>==���� �ȉ��9. D For example object, hidden, and center lines. ♦ Using the CONSTRUCTION LINE command in AutoCAD to draw. Each principle view is created by looking at the object in the directions indicated in Figure 2-2 and drawing what is seen as well as what is hidden from view. startxref 0000002792 00000 n Projection lines do not touch the object and are ��G��IF�~�5H�l�����t �N�AG�g`�� � &�� Step-by-step guide to drawing orthographic views You are given the following object to draw Drafting: Orthographic and Isometric Drawings Plumber 6 Youth Explore Trades Skills Activity 2: Create Plumbing Orthographic Projections The teacher should create a piping system large enough so that it can be displayed at the front of the class and students can draw an orthographic … This activity is designed for students to draw orthographic projections of an actual piping system. 60[0050p0��`��K��K �x0 ��@A0��@$�2i�E9;(�9д|Χ�@�������û����>��e�k �d��F��6@⢞��� m Orthographic Projection and Multiview Constructions ♦ Understand the Basic Orthographic projection principles. Isometric drawing – step 1 • Step 1 – Sketching the object as if it were a complete cube without any cuts. An example dimension is shown below. 579 0 obj <> endobj 2.2.1) The Six Principle Views The 6 principle views of an orthographic projection are shown in Figure 2-2. 2. Pattern of planes & Pattern of views Methods of drawing Orthographic Projections Different Reference planes are FV is a view projected on VP. xref )ɩL^6 �g�,qm�"[�Z[Z��~Q����7%��"� Figure 7 identifies the possible orthographic projection … %%EOF After you have drawn this line you are ready to draw projection lines. – The measurements of overall Width (A), Height (B) and Depth (C) are transferred from the orthographic to the isometric by counting grid spaces . Repeat the process and draw the vertical folding line. $O./� �'�z8�W�Gб� x�� 0Y驾A��@$/7z�� ���H��e��O���OҬT� �_��lN:K��"N����3"��$�F��/JP�rb�[䥟}�Q��d[��S��l1��x{��#b�G�\N��o�X3I���[ql2�� �$�8�x����t�r p��/8�p��C���f�q��.K�njm͠{r2�8��?�����. %%EOF These projection lines will help us position and control the size of the top and right side views. ♦ Using the AutoCAD Running Object Snaps options. h�b```f``�������� Ȁ �@1v��N�y���T9)r( W�I�I��plX=If������N� �_�K��\ʼng�����~���n���g1>�T�s�-P̗8�%꼿���y�l�����*����)�Fu���. endstream endobj 964 0 obj <>/Outlines 127 0 R/Metadata 194 0 R/PieceInfo<>>>/Pages 190 0 R/PageLayout/SinglePage/StructTreeRoot 196 0 R/Type/Catalog/LastModified(D:20091030093850)/PageLabels 188 0 R>> endobj 965 0 obj <>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>>/Type/Page>> endobj 966 0 obj [/ICCBased 971 0 R] endobj 967 0 obj <>stream The challenge of creating piping orthographics is that symbols must be used to represent 90° elbows or tees pointing toward or away from the viewer. Dimensions are always drawn using continuous thin lines. ��3�������R� `̊j��[�~ :� w���! To prepare an orthographic drawing, the selection of one quadrant of dihedral and or one octant of a trihedral angle is made. w Horizontal reference plane (HP) Vertical reference plane (VP) HP VP Front view Side view Top view 80+40+80=200 70 50 Φ50 30+20=5 0 Midpoint 35 80 40 70 20. 607 0 obj <>/Filter/FlateDecode/ID[<1077889AF8DD5E4890A216D83DB31AB0><9E38CFF542182E4AAF5CD0A57C8AE912>]/Index[579 56]/Info 578 0 R/Length 128/Prev 1021322/Root 580 0 R/Size 635/Type/XRef/W[1 3 1]>>stream 963 0 obj <> endobj space relationship. hޜ�wTT��Ͻwz��0�z�.0��. <]>> 0000002870 00000 n Orthographic Projection and Multiview Constructions ♦ Understand the Basic Orthographic projection principles. 973 0 obj <>stream 0000000528 00000 n �Cdَ�J�uB�A�j_���`���av�;a,��N�߫KZdNmDP��8/�d~��q��A����J�Q��C���e�Rh��F^���Gc9��vi�>������x�J��X�l�7؍Sz��Z6�K����S`ՇMo���F����Az���̓Xh��*Kچ�T�z��2���oV'�#� WF� 0000001196 00000 n 0000000016 00000 n x�bb������8�f�;��1�G�c4>F�h|���(�Z`� � � Step 1 … 0000001769 00000 n First Angle System. The projection lines are used in much the same way as they are when drafting orthographic drawings. h�bbd```b``S� ��&m��|ɾ ���[�� `v��D�,�ZV R����� 3. x�b```b``���d�fb@ !�+s,TRpTrJVQbg�6���w��,q%�$n��(��f`p� ��ɑ�Cӄ�;���QA�#4UXz�\ 5 Mk�h�ږ��e�d�Q�A�S S�D����U�3B�4O�� �VhF�%LH���Y���8�D�YǸ.�OH�d��U'3 @+��0 endstream endobj 972 0 obj <>/Size 963/Type/XRef>>stream Draw the front first, top second, and right side last trailer ♦ Use AutoCAD’s AutoSnap and AutoTrack features. %PDF-1.4 %���� H�l��j�0@�� 200 Φ50 50 80 40 70 20 ♦ Using the CONSTRUCTION LINE command in AutoCAD to draw. %PDF-1.6 %���� endstream endobj startxref A dimensioned drawing should provide all the information necessary for a finished product or part to be manufactured. Projections • Behind every 2D drawing of an object is a . Systems of Orthographic Projection. 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