PPT-Dimensioning

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. Two general types of dimensions are used in drawings size di mensions such as the size of holes and size of features such as widths and thickness and location dimensions such as the location of holes The purpose of a drawing is to convey to the work 4 WHQVLRQ57347OLQHV57347DQG57347GLPHQVLRQ57347OLQHV 573607KH UVW57347GLPHQVLRQ57347OLQH57347LV57347VSDFHG57347D57347PLQLPXP57347RI573475736657362573715752457347RU57347573645736357347PP57347IURP57347WKH57347YLHZ57347DQG573475736457362573675752457347R Fiducialisation and shims dimensioning. Sylvain GRIFFET, . 24/01/2011. Measurements performed on the . 3. rd. week of January 2011. 1. /5. Measurement objectives. Unfortunately . neither the . girders or cradles (but to a lesser extent) . Chapter 7, Virtual Condition. Introduction. Chapter introduces an important concept related to the mating of parts in an assembly.. Interchangeability of parts and assemblies can only be ensured when parts are accepted at virtual condition or better.. 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.. Introduction • Rule of Thumb • meter and yard • International System of Units (SI system)  ISO standards • American National Standards Institutes (ANSI)  Temperature control allows for approximately 0.1nm/ 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.. © 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.. 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.. Product Definition . and Related Documentation Practices. By . Fredric . Constantino. In 1957 the first . edition of Y14.5 American Drafting Standards . Manual, Section . 5, Dimensioning and Notes, was . 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.