Technical Drawing Tutorial - Faculty Of Engineering And .

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Technical Drawing TutorialDoug SmithMemorial University of NewfoundlandOctober 18, 2012

Drawing BasicsWhat is a technical drawing? A drawing that displays technical information to the readerthrough specific visuals, directions, notes, etc A good technical drawing should be informative, clear,NEAT, unambiguous and not cluttered.

Drawing BasicsProfile View

Drawing BasicsPlan View Viewed from above

Drawing BasicsFWD View (Bow view) FWD looking aft.

Drawing BasicsSection View Looking in direction of arrows

Drawing BasicsStation View Slice at that section

Type of Ship Drawings Lines Plan General Arrangements (Profile and Decks) Structural DrawingsOther Drawings System Drawings Fire and Safety Plan Escape Plan Etc

Lines Plan A collection of lines at well defined positions that are usedto define a hull form Projections of straight lines on to the hull surface from XY-Z planes Produce Waterlines, Buttocks and Station curves

Lines Plan

Lines Plan

General Arrangement General Arrangement of hull, bulkheads, decks and allmachinery, equipment and outfitting Profile and Decks (sometimes FWD view as well)

General Arrangement Profile (outboard Profile)

General Arrangement Decks

General Arrangement

General Arrangement

Drawing Elements Title Block Baseline Centerline Labels

Title Block Title Name Date LOGO Project Number Revision History Drawing Number Scale Etc

Rhino3D Rhino3D is 3D modeling program Can also be a useful tool for technical 2D drawings Can be used to produce 2D technical drawings but tailoredmore towards 3D renderings than 2D line drawings Now create hull lines for a canoe hull .

Rhino3D Open ”Right”viewport (Y-ZPlane) Arrange pointsthat midshipsection will passthrough.

Rhino3D

Rhino3D Place points on X-Y Plane (TOP View) and Move pointsup to deck edge. Then draw polyline through points

Rhino3D Change lines to separate layer Then turn off layer with points

Rhino3D Draw 2 lines from midship-centerline to the bow-deck Fillet edges Then join curves

Rhino3D Sweep 2 rails with the midship section as the cross curve Then mirror surface about the midship Then Join 2 surfaces together

Rhino3D Rename new layers Waterlines, Buttocks, Stations

Rhino3D Select the waterlines layer and place straight lines in theX-Z plane Then project curves onto surface using the front view Repeat for Buttocks and Stations in the respective views

Rhino3D Hull lines to define the ship geometry

Rhino3D Select lines and Make 2-D drawing

Rhino3D Select 2D lines and export selected as .dwg file

AutoCad Import dwg to AutoCad

AutoCad Go to paper space(layout1) Select viewport Open propertieswindow Play with scale to getan idea of the scale youwill need Note: use page setupto set paper size.

AutoCad Go to paper space(layout1) Select viewport Open propertieswindow Play with scale to getan idea of the scale youwill need Note: use page setupto set paper size.

AutoCad Add labels to views

AutoCad Adjust text height to appear correctly in paper space

AutoCad Add Baseline, Centerline, Labels, Station numbering

AutoCad After drawing is complete create title block Note: Better to draw title block in paper space then scaleviewport inside the title block

Technical Drawing Questions?

A drawing that displays technical information to the reader through specific visuals, directions, notes, etc A good technical drawing should be informative, clear, NEAT, unambiguous and not cluttered. Drawing Basics Profile View . Drawing Basics Plan View Viewed from above . Drawing Basics FWD View (Bow view) FWD looking aft. Drawing Basics Section View Looking in direction .

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