Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 1Autumn Quarter Sectioning of Assembly Drawings Lecture 14

Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 2Autumn Quarter Topics for Today QUIZ Tomorrow – Sections Review - Sectioning of Revolved Solids Assembly Drawings Wednesday/Thursday – Lab #5 –Material Joining & Beam Bending –Read the lab notes and procedures before coming to lab

Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 3Autumn Quarter Sectioning: Solid Revolutions Assembly Drawings Tips for sectioning solid revolutions What is an assembly drawing How to section multiple parts in one drawing What parts not to section

Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 4Autumn Quarter Review - Tips For Sectioning Solid Revolutions Ribs, webs and other thin features are normally not sectioned Align (rotate into true size & shape): –Ribs –Bolt holes –Lugs –Spokes

Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 5Autumn Quarter Assembly Drawing Shows how multiple parts fit together Orthographic Pictorial (1) Exploded (2) Bill of Materials (3) 1 2 3

Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 6Autumn Quarter Orthographic Sectioned Assembly Note cross-hatching style of adjacent parts

Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 7Autumn Quarter Conventions for Standard Parts Not Sectioned – show all exterior features for: –Shafts –Bearings, roller or ball –Gear Teeth –Threaded Fasteners, Nuts and Bolts –Rivets –Ribs, Spokes and Lugs –Washers –Keys and Pins

Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 8Autumn Quarter Example Sectioned Assembly

Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 9Autumn Quarter Broken Out Assembly With B.O.M.

Engineering H191 - Drafting / CAD Gateway Engineering Education Coalition Lect 14P. 10Autumn Quarter Assignments Dwg 27 – T49 –Complete section views –Due at end of today’s lecture Dwg 28 – B21 –Sectioned Assembly –Due at beginning of next lecture