PPT-Dimensioning Why Dimension?

Size and Location of all features Engineers designers and engineering technologists need to know Dimension Completely Width Dimension Completely Height Width Dimension Completely Depth. 1 All dimension extension and leader lines shou ld be thin sharp dark lines 5mm2H 2 Extension lines indicate the points between which the dimension figures apply They are drawn perpendicular to the dimension lines start with a visibl e gap 132 betw Dimensions. What is dimensioning?. Communicating shape and size in a clear fashion. #1 Rule for Dimensioning: Provide the dimensions which most clearly and accurately show the size and location of a feature. . Practice dimensioning drawings. Questions about DP?. Lines. Line . types. (e.g., part, hidden, center). Line . values. (e.g., thick, intermediate, construction). It is important to use the proper line type and line value in your drawings. It communicates important information and makes drawings easier to understand.. Unit 1 – Introduction, Symbols, and Terms. 2. Everyone should have a workbook to follow along. . It contains necessary reference information along with class exercises.. Page numbers in yellow on the slides match pages in the workbook.. 1. Dimensions should NOT be duplicated, nor should the same information be given in two different ways.. Incorrect. 1. Dimensions should NOT be duplicated, nor should the same information be given in two different ways.. Dimensioning. The important information on a drawing is the dimension and tolerance of all of its features.. Lines used in dimensioning. Dimension line:. A dimension line is a thin, dark line terminated by arrowheads and indicates the extent of the dimension (figure a).. © 2012 Project Lead The Way, Inc.. Introduction to Engineering Design. Dimensions should reflect actual size of the object, not the scaled size.. The dimension measured on the drawing is ¾ in., but the actual dimension of the part is 2 in. Therefore, show 2.00 on drawing.. 1. Dimensions should NOT be duplicated, nor should the same information be given in two different ways.. Incorrect. 1. Dimensions should NOT be duplicated, nor should the same information be given in two different ways.. Dimension. Guidelines. 1. Dimensions should NOT be duplicated, or the same information given in two different ways.. Incorrect. 1. Dimensions should NOT be duplicated, or the same information given in two different ways.. Drafting and Dimensioning Standards. Instructors Name. Course Number. Planchard Copyright 2012. Drafting Standards . In order for drawings to be dimensioned so people can understand them, we need to follow various drafting dimensioning standards. Below are a few:. © 2012 Project Lead The Way, Inc.. Introduction to Engineering Design. Dimensioning Standards. In order for the drawings to be dimensioned so that all people can understand them, we need to follow standards that every company in the world must follow. Standards are created by these organizations. Making things fit. General rules of dimensioning (1). Dimensions . should NOT be duplicated, or the same information be given in two different . ways.. No . unnecessary dimensions should be used - only those needed to produce or inspect the . Unit 1 – Introduction, Symbols, and Terms. 2. Everyone should have a workbook to follow along. . It contains necessary reference information along with class exercises.. Page numbers in yellow on the slides match pages in the workbook.. Will Durfee & Tim . Kowalewski. Department of Mechanical Engineering. University of Minnesota. Opening comments. Engineering graphics is the method for documenting a . design. Mechanical engineering students must be familiar with standards of engineering graphics as it is expected in industry.