IENG 248 Lecture 08 Working Drawings 1142020 Engineering

IENG 248 Lecture 08 Working Drawings 11/4/2020 Engineering Graphics & 3 -D Modeling D. H. Jensen 1

IENG 248 Working Drawings (3 Types) ® Detail Drawings n provide all necessary information to manufacture a single component l necessary views (shapes), dimensions, notes, mat’l ® Assembly Drawings n provide information necessary to describe the fit and function of interacting components l necessary views (relations), few / no hidden lines & dimensions ® Patent Drawings n provide information necessary to describe the features of an invention and support patent claims l explanatory (pictorial, shaded) representation l very highly structured legal document 11/4/2020 Engineering Graphics & 3 -D Modeling D. H. Jensen 2

IENG 248 11/4/2020 Detail Drawing Engineering Graphics & 3 -D Modeling D. H. Jensen 3

IENG 248 11/4/2020 Assembly Drawing Engineering Graphics & 3 -D Modeling D. H. Jensen 4

IENG 248 11/4/2020 Assembly (Installation) Drawing Engineering Graphics & 3 -D Modeling D. H. Jensen 5

IENG 248 Working Documentation - Details ® Title Block (Strip) n provides a structured arrangement of commonly required data about the interpretation of, and the responsibility for, the design l shown on each drawing ® Bill of Material n provides a structured arrangement of commonly required data about the components in the design l attached sheet or shown on assembly drawings ® Revision Block n provides a structured arrangement of commonly required data about the history of the design l shown on each drawing 11/4/2020 Engineering Graphics & 3 -D Modeling D. H. Jensen 6

IENG 248 Title Block Information (Every Drawing) ® Title Block: n n n n Part Name (Part Number *) Company (Client *) name & address Signatures of Designer (Checker *) & Engineer Dates of Completion & Approval Scale Drawing Number Engineer’s Seal * l PE registration number 11/4/2020 Engineering Graphics & 3 -D Modeling D. H. Jensen 7

IENG 248 Revision Block Information (If On-Drawing) ® Revision Block: n Revision l Where changes were made n Description l What change(s) were made n Checked by l Who approved the changes n Date l When the changes were made 11/4/2020 Engineering Graphics & 3 -D Modeling D. H. Jensen 8

IENG 248 BOM Information (If On-Drawing) ® Bill of Materials (Parts List): n n n n 11/4/2020 Reference Number Description Quantity Required Part Number * Detail Drawing Number * Material * Weight * Engineering Graphics & 3 -D Modeling D. H. Jensen 9

IENG 248 11/4/2020 Costed Bill of Material Engineering Graphics & 3 -D Modeling D. H. Jensen 10

IENG 248 How to Cost Your BOM ® Get Materials Information from Web: n Density (mass per unit volume) l www. matweb. com (or similar) l Note the density for each req’d mat’l (g/cc 3) n Cost (cost per unit volume, or cost per unit) l www. mcmaster. com or www. onlinemetals. com (etc) l Calculate price/unit volume for large piece l Calculate cost/unit for fasteners for large quantity ® From Excel, for the BOM: 11/4/2020 n Multiply to find price/unit n Roll up sub-assembly costs to find total cost/assembly n NOTE: This is only the material cost, there additional costs reflected in the purchase price! Engineering Graphics & 3 -D Modeling D. H. Jensen 11

IENG 248 11/4/2020 Costed Bill of Material Engineering Graphics & 3 -D Modeling D. H. Jensen 12

IENG 248 Project Components ® Project Toy: Teams of about 4 students n Parts Needed: n l All part details & 5 assemblies of the design packet (team) Final Assembly l l ® ® ® ® Roof (necessary views) Cab Sub-Assembly Seat Engine Housing Carriage, Wheels, Gears, Tread Sub-Assembly (2) Arm Links, Cylinder, Slide Sub-Assembly End Effector, Joints, Blade Bill of Material with Cost Roll-Up (Excel Spreadsheet 8 -1/2 x 11 format) Cover Sheet (Installation Drawing) All drawings on Team-Formatted Title Blocks Produce entire model on 3 -D Printer (. STL files →. Thing files) ® Need a pretty solid base ® Printing overhangs is a problem → use (breakaway) supports l One alternate end effector from each team member (bonus pts!) n 11/4/2020 Team Design Packet: (turn in electronically by 1: 00 PM on Wed. 13 DEC) Engineering Graphics & 3 -D Modeling D. H. Jensen 13

IENG 248 Submission Instructions To submit your team’s term project, do the following steps: ® ® ® ® ® 11/4/2020 Open the F: drive from your computer Go to the folder labeled tmpfiles Go to the folder labeled IENG 248 Term Projects Create/find the folder with your team name, and open it Copy all of the following files into the folder: n Each individual part file n Each individual drawing file n Any assembly file(s) n Any other files that your team wishes to submit for grading Send an e-mail to the instructor with the following subject: IENG Final Project – and add your team name at the end In the body of the e-mail text: n List each team member and the part files / drawings / etc. that they created for the project – one student per line. Hit the send button Go enjoy your break! Engineering Graphics & 3 -D Modeling D. H. Jensen 14