Pro_e Creating Drawing

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Pro/ENGINEER Wildfire 3.0 Schools EditionTeacher Training Manual

PTCwww.ptc.com Module 04-2

Creating DrawingsThere are two methods for creating drawings. In the first method you use a drawing template toautomatically populate the drawing with predefined information. In the second method you manuallyplace views onto the drawing. Typically a combination of both these methods is used.

Drawing views can show all the necessary details such as dimensions, notes and bill of material tablesthat downstream activities such as manufacturing, inspection and Quality Assurance need in order to

create and approve production parts. With the increasing use of Computer Numerically Controlmachining (CNC) the use of drawings for component manufacture is typically used for inspection andQuality Assurance purposes.

Pro/ENGINEER Wildfire can also add additional information to drawings such as linear and geometrictolerancing (GD&T), surface finish symbols, user-defined symbols, hole charts, and BOM tables.


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Drawing Templates & FormatsLike part and assembly templates, a drawing template provides you with a starting point to create yourdrawings. Drawing templates are used when predefine drafting standards are required.Drawing templates can automatically create views, set the desired view display states, display drawingformats and set drafting standards.

Drawing templates contain three basic types of information for creating new drawings:

1. Basic information that makes up the drawing but is not dependent on the drawing model, such assheet size, drawing format, and notes, etc.

2. Representative view symbols which contain the options used to configure drawing views andactions that are performed on that view for example, view location and view display.

3. Parametric notes. Parametric notes are notes that update to new drawing model parametersand dimension values. When a drawing is created from a template the parametric notes updatewith the proper information from the parameters in the part model/s used in the drawing.

A drawing template can also be customised with your school or company formats and standards.Drawing templates can accelerate the creation of production drawings.

Note: Pro/ENGINEER Wildfire has default drafting settings for the following international draftingstandards:

ISO ANSI

JIS

DIN

As part of the PTC D&T program the pro_standards directory contains additional drafting settings for:

AS1100

BS8888Compliance to these two additional drafting standards hasnt been certified.


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Creating ViewsInstead of manually sketching each required view of a model and/or assembly, as you would in a 2-Ddrawing package, Pro/ENGINEER Wildfire enables you to quickly place views of the part/assemblymodels.

There are basic view types in Pro/ENGINEER:

General this is usually the first view to be placed in the drawing. This view may serve as theparent view for projected views or any other derived views. The General view can be placed inany orientation and at any scale. Updates to the General view affect any child views.

Projection this is an orthographic projection of another view along a horizontal or vertical planefrom the parent view. The orientation of the projection view is always 90 from the parent view,and its scale is dependent on the parent view.

Detailed this is a small portion of a model shown enlarged. A reference note and border isautomatically created on the parent view. The orientation of the detailed view is the same as theparent view but the detail view is typically shown at a larger scale.

Auxiliary (not shown in the slide image) this is a special type of projection view. Instead ofbeing project orthogonally, the auxiliary view is projected perpendicular to a selected planarreference, or projected along the direction of an axis.

Once the view is placed you can determine how the view is to be used: whether the view shows cross-

sections, how the view is displayed (hidden, no hidden, or shaded) and how the view is scaled. You canthen show the associative dimensions passed from the 3-D model or add reference dimensions asrequired.

In addition to the option of applying a custom scale to a view, each sheet has its own scale, which islocated in the lower-left corner of the graphics window.

When views are moved on a sheet, all child views update to maintain the lines of projection.


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Adding detail to drawingsPro/ENGINEER Wildfire enables you add dimensions directly from the model; either dimensions from afeature or from an assembly constraint. There are two basic types of dimensions in drawings:

Driving dimensions

Driven dimensions (standard and reference dimensions)

To take full advantage of the associativity between the 3-D model and the drawing the first dimensionsyou apply to a view should be derived from what are called Driving dimensions. These dimensionswere created when building the 3-D model and should capture your design intent. You shouldselectively show these dimensions in the drawing using the View>Show and Erase dialog.

Another benefit to using Driving dimensions in your drawings is that you can take advantage ofPro/ENGINEERs bi-directional associativity. This means if you change a driving dimension in thedrawing the model and all downstream deliverables referencing the model are updated.

In terms of Driven dimensions, there are several options to insert these dimensions. Driven dimensionsare not directly modifiable but update based on changes made to the model.

New References Adds a dimension between two selected geometry objects

Common References Adds a series of dimensions between a common base object and one ormore objects parallel to it.

Ordinate Converts existing standard dimensions to ordinate dimensions. Coordinate Enables you to assign existing X and Y dimensions to a label and leader.

Dimensions can be edited to include additional text and a variety of symbols.


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Parent / Child relationshipsWhen creating a drawing you must consider the parent/child relationship that already exist. A changemade to the parent affects its children.

Drawing Views are children to either the saved views in the part/assembly model and/or to thereference orientations selected. Also some drawing views are children to other views, such asprojected, detail and auxiliary views. The drawing view is also a child to the source model.Drawing details are children to their respective models, for example; dimensions, parametric

notes and BOM tables.


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Exercise M04-1: Drawing creation

ObjectivesAfter successfully completing this exercise you will

know how to: Create a new drawing from a template file

Create cross sections in the model

Add drawing views

Add projected views

Add detail views

Create dimensions

Start Pro/ENGINEER Wildfire. If Pro/ENGINEER Wildfire is already open, close all windows and eraseall models from memory.

1. In the Folder Browser , browse to:C:\users\ProE_teacher_training_schools_edition\module_04

2. Right-click the module_04 folder and select Set Working Directory

3. Left-click the module_04 folder to open up the browser and double-left-click wheel_inner.prt toopen the part.

4. Click Datum Axes , Datum Points , and Coordinate Systems to turn off their

display, but leave Datum Planes as visible.

5. Click View Manager and in the View manager Dialog select the Xsec tab.

6. Click New and enter A for the name of the new cross-section; use the Return key on thekeyboard to enter the name and the Menu Manager will be activated.

7. Accept the default settings, (Planar & Single) by clicking Done.


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8. Left-click the FRONT Datum Plane.

9. To accept the newly generated cross-section clickClose in the View Manager.

As soon as you click Close the View Manager dialog will close and the newly generated cross-sectionwill disappear.

10. To display the cross-section Click View Manager to display the dialog again.

o Right-click required cross-section (in this case there is only A)and from the pop-up menu select Visibility. This will toggle thedisplay of the cross-section and display an eye next to the A to

indicate its visibility status .

o To turn the display off select Visibility again to toggle it to off, theeye symbol will then be removed.

Pro/ENGINEER can also use a cross-section to section the model.

o Right-click the required cross-section and from the pop-up menu select Set Active.Pro/ENGINEER will graphically cut the model at the cross-section, (this is a displaystatus and not a feature operation). A red arrow will be displayed next to the A to

indicate its visibility .

o To turn off the graphical sectioning of the model right-click No Cross Section in theView Manager dialog and from the pop-up menu select Set Active.

o Also turn off the display of the cross section, select Visibility again to toggle it to off, theeye symbol will then be removed.

o Click Close to close the View Manager dialog.

11. Click Datum Planes to turn off the display of Datum Planes.


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12. Click Save from the main toolbar then click OK in the Save Object dialog box.

13. Click New from the main toolbar; and select Drawing for theType. Enter wheel_inner for the Name. Note that the Usedefault template option is enabled. Now click OK

14. Pro/ENGINEER will display the New Drawing dialog which contains alist of available templates. To accept the default template(A3_drawing) click OK.

Note: The default drawing templates supplied as part of the PTC D&T programhave been created specifically for Pro/ENGINEER Wildfire Schools Edition andSchools Advanced Edition. More information on drawing templates will becovered in a later Module.

Pro/ENGINEER will create a new drawing based on the A3_template which includes 3 basic views.


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Note: As the part model contained Parameters such as Description and Project the drawing templatehas been set up to automatically populate the relevant parts of the drawing Title blocks.

The drawing template also created 3 views of the model. The scale of the views is currently set to 1 asindicated in the bottom left of the Pro/ENGINEER Wildfire graphics window (highlighted in red in theprevious illustration).

15. Double left-click the word scale in the bottom left of the graphics window and enter a value of 2

and click Accept Value (or hit the Return key)

16. For the purposes of this exercise the upper left view (highlighted in red in the image below) is notneeded. Left-click the view to select it and delete it, either by using the Delete key on thekeyboard, or right-click and select Delete from the pop-up menu.

Pro/ENGINEER should have displayed a warning dialog box informing you that other views aredependent on the selected view and will also be deleted if the command is continued.

Why is this?

Continue with the deletion and click Yes.


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The following steps will take you through the manual creation of drawing views

17. Click Create a general view from the detailing toolbar

18. Move the cursor to where you want to place the view and left-click. Pro.ENGINEER will create

the view and open the Drawing View dialog.

19. The next step is to define the required view orientation. This is done by selecting a predefinedview from the Model view names section of the View dialog. Scroll down and select RIGHT andclick Apply.

20. Now select View Display from thelist of Categories.

21. For the Display style left-clickFollow Environment and from thepull-down list select No Hidden

and click Apply.

22. Click Close to close the DrawingView dialog.

23. Make sure the newly created view(General View) is selected.

24. Right-click-hold over the activatedview and from the pop-up menuselect Insert Projection View


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25. Move the cursor outside of the active view and notice how Pro/ENGINEER previews a view boxindicating which orthogonal projection is available. Move the cursor to the right and left-click tocreate the projected view in the desired location.

26. Double-left-click the view to call up the Drawing View dialog and change the View Display to NoHidden, Apply and Close.

To provide clear detailing of the wheel spokes a Detail View is required.

27. Make sure none of the views are selected.

28. From the main toolbar select Insert>DrawingView>Detailed

29. Pro/ENGINEER will prompt you to Select centrepoint for detail on an existing view. Left-click overthe hole in the upper wheel spoke.


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30. Pro/ENGINEER will now prompt you to Sketch aspline. You do not need to select the spline tool.Just start sketching but without intersecting othersplines.

31. This will form the boundary of the detailed view.Using left-click create a number of points around the

area you wish define for the detailed view, middle-click to finish creating the spline (Pro/ENGINEER willclose the spline)

32. Pro/ENGINEER will now prompt you to Select CENTRE POINT for drawing view. Click Refit

object to window and left-click a point in the bottom area of the drawing. Middle-click tofinish and exit detailed view creation.

33. The next view to be created will be a sectioned view through the wheel. Repeat the addprojection view process (steps 23 to 25) and position the new projected view on the right of thepreviously created projected view.


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34. Double-left-click the newly created view to open up the Drawing View dialog.

35. Select View Display from the list of Categories.

36. For the Display style left-click Follow Environment and from the pull-down list select No

Hidden and click Apply.

37. Select Sections from the list of Categories.

38. Select 2D cross-sections

39. Select Add Cross-section and select A from the available cross sections, followed by Applyand Close.


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40. Left-click the newly created section view to activate it, right-click-hold and select Add ArrowsPro/ENGINEER will prompt you to Pick a view for arrows where the section is perpendicular .Select the first general view you created and Pro/ENGINEER will create the section arrows.

41. Click Save from the main toolbar then click OK in the Save Object dialog box.


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The next part of this section will take you through the process of creating drawing annotations such ascentrelines and dimensions.

42. Click Show/Erase from the drawing toolbar.

43. In the Show / Erase dialog select axis in the Type sectionand in Show By section select Partand View.

Note: Selection in the Type area toggles each type, i.e. clicking Axis onceselects the type selecting it again de-selects the type.

44. Move the cursor over the wheel geometry in the first view you createduntil it highlights, then left-click to select it. Pro/ENGINEER will thenprovide a temporary display of all Axes available for display for theselected part in the view.

45. Click OK in the smaller Select dialogbox.

Pro/ENGINEER will now add the axes to the view as shown below.


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The next few steps are to show the main axis/centreline of the wheel in the two projected views.

46. In the Show / Erase dialog change Show By to Feature.

47. Move the cursor over the first view you projected until the geometry highlights and left-click toselect it. Notice that Pro/ENGINEER generates temporary axes in three of the four views.

48. Click OK in the small Select dialog.

49. The Show / Erase dialog now displays the Preview options. Select Sel to Keep and in thePro/ENGINEER graphics window select the axes in the two projected views (but not the axesdisplayed in the detailed view). Hold down the Ctrl key for multiple select.


The next few steps are to show the centrelines for just the detailed view.

51. With the same options selected in the Show / Erase dialog, select the small hole in the detailedview followed by OK in the small Select dialog. Select Sel to Keep and in the Pro/ENGINEERgraphics window select axes in the detailed view (but not the axes displayed in the two projected

views).


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The next step in the drawing creation process is to add dimensions.

52. In the Show / Erase dialog click to toggle off Axes and then click to toggle ondimensions.

53. In the Show By section, select Feature and View.

54. In the graphics window select the wheel geometry in the first projected view. Pro/ENGINEER willtemporarily display the dimensions used in the modelling process for the revolve feature.


56. In the Show / Erase dialog select Accept All followed by Close.

57. To arrange the dimensions in a more pleasing manner selecteach dimension and drag it to the required location.

58. To align two or more dimensions select them and right-click-hold and select Align Dimensions from the pop-up menu.

Note: The dimensions created so far have been created by bringing indimensions used to create the model and are therefore drivingdimensions. If you double-left-click the value you can change the valueand a regeneration would also update the model.

To create driven dimensions click Create standard dimension from the dimension toolbar.

59. In the second projected view left-click the two lines shown in the image below, position thecursor where you wish to create the dimension and middle-click.


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60. To exit Create standard dimension select OK in the small Select dialog.

61. Click Save from the main toolbar then click OK in the Save Object dialog box

This completes this exercise.

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Pro_e Creating Drawing