Contents

Chapter 1: Instruments & Equipment Pages1-1through1-15Chapter 2: Lettering Pages2-1through2-4Chapter 3: Measuring with the Scale Pages3-1through3-7Chapter 4: Line Conventions Pages4-1through4-5Chapter 5: Geometric Constructions Pages5-1through5-14Chapter 6: Dimensioning Pages6-1through6-11Chapter 7: Drawing Techniques Pages7-1through7-8

ThisInstructional Workbook for Draftingisacomprehensivedraftingworkbookdesignedtoteachthebasicdrawingtechniquescommontoallareasofdrafting.Thislearningtoolcanbeusedinconjunctionwithanyotherstandarddraftingtextorwithnotextatall.Eachofthe64pagesisself-instructingandself-explanatory.AllinstructionalworksheetsincorporatecurrentAmericanNationalStandardsInstitutedraftingstandards(ANSIY14.5M)andareclearlyillustratedwitheasy-to-understandexamplesofeachdrawingmethodshown.Theexercisesinthisworkbookhavebeenpreparedespeciallyforabeginningcourseinmechanicaldrawing,beitinajuniororseniorhighschool,technicalschool,orcollege.

Mostmaterialusuallycontainedinclassroomlecturesandothertechnicaldraftingtextsisclearlyillustratedandexplainedinthisinstructionalworkbook.Thedrawingexercisescontainedontheinstructionalworksheetsaredesignedtohelpthebeginningdrafterdevelopabasicunderstandingoftheprinciplesofgraphiccommunicationsandtheproperuseofdraftinginstruments.Theseexercisesenablestudentstodemonstratetheirknowledgeofthematerialbyapplyingthedraftingconceptsandtechniquesthey'velearned.Clearandconciseinstructionsappearnearthetopofeachworksheet.

AttheendofeverychapteryouwillfindA-sizetitleblocksheetscontainingquestionsanddrawingproblemsthatcanbeusedtoevaluatethestudentdrafter'sunderstandingofthecontentcontainedtherein.Answerstoallpracticeexercisesappearinaseparateinstructor'sguide.

Aftertheinstructionalworksheetshavebeencheckedbytheinstructor,theycanbekeptbyeachstudentinanotebookorbinderforfuturereference.Ifdesirable,thestudentscanlaterbindallsheetstogether(orjustbindthetitleblocksheets)andaddacoverpagetoretainacollectionoftheirwork.Usetheworkbookcover(frontandback)asacoverpageifyoulike.

Studentsusingthisworkbookmayadvanceattheirownpace,doingsoasquickly,neatly,andaccuratelyaspossible.Theinstructormaywishtosupplementthisinstructionalinformationwithclassdemonstrationsandothercoursework.

AnA-sizetitleblocksheetisprintedinsidethebackcoverofthisworkbook.Thistitleblockcanbecopiedandusedbythestudentwhofindsitnecessarytoredrawaproblem.(Or,allexercisescanbedoneonvellumoverlaidontopofthesetitleblockcopies.)Thecopiedtitleblockcanalsobeusedforadditionalproblemsassignedbytheinstructor.Youarealsowelcometomakeasmanycopiesasyoulikeoftheoutsidebackcover.ItshowsachartthebearsthecurrentANSIandISOsymbols,drawnfullsize.Allsymbolscanbescaleddirectlyfromthischart.Studentsareencouragedtoreadallinstructionalmaterialcarefullyandconsultthevariousdraftingreferencebooksavailableintheclassroomorlibraryifnecessarytoovercomeanareaofdifficulty.Theinstructorispresenttoprovideguidanceandexplanationsandtoevaluatethestudentdrafter'sprogress.Itisimportantthatthestudentdrafterreadcorrectly,comprehendthoroughly,andexecutecompletelyeachtaskidentifiedinallunits.Theimportanceofproperlyfollowingdirectionscannotbeoveremphasized.Oneverypagethereisaplaceforthedrawingnumber.Useyourownsystemtonumberthesesheetsorusethepagenumberasshowninthelowerright-handcorner.Thoughtheorderofprogressioninwhichthechaptersandworksheetsarecompletedmaybechangedtobettersuityourneeds,itisnotrecommended.Thisworkbookisdesignedsothatteacherscanmaketransparenciesofeachpage.Allproblemsandinstructionalinformationarecontainedwitha9-3/4"x9-3/4"areasotheentireimagecanbeseenwhenprojectedona10"x10"overheadprojector.Thetransparenciesarealsogreatforuseasoverlaykeyswhencorrectingallexercises.Justconsulttheteacher'sguideforthecorrectanswerstotheproblemsandaddthemtothetransparencies.Pleasedonoreproducethesesheetsinanywayotherthantomakemultiplecopiesofthebackcover(insideoroutside)andonesetofoverheadtransparencies.Itisunlawfultodoso.Throughtheintroductionofthisworkbook,wearetryingtoofferqualityinstructionalmaterialsatareasonableprice.Thankyouforrespectingourattemptstodoso.

Paul Wallach and Dan Hearlihy

Instructional Workbook for DraftingAuthored by: PaulWallachandDanHearlihyIllustrated by: RobinL.BeardPublished by: Hearlihy 1002E.Adams,P.O.Box1747 Pittsburg,KS66762 866-622-1003

Copyright 2004 by Hearlihy.Allrightsreserved.PrintedintheUnitedStatesofAmerica.Thepublisherpermitsthebearertorighttomakemultiplecopiesofthebackcover(insideandout-side)andonetransparencyonlyofeachpageofthisworkbookforoverheadprojectoruseintheclassroom.Fornootherrea-sonmayanypartofthispublicationbereproduced,storedinaretrievalsystem,ortransmittedinanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofthepublisher.