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A completed Engineering Drawing

A completed Engineering Drawing.

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A completed Engineering Drawing

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  1. A completed Engineering Drawing • A engineering drawing consists of the drawings for all the parts and a final assembly. For example, if we have three parts to form a final assembly, then the completed engineering drawing will consist of three sheets for parts and one for assembly. There are totally four sheets in the engineering drawing. • The files need to generate an engineering drawing: • All the part files: *.prt • One assembly file: *.asm • One or more frame files: *.frm

  2. Annotate 1 • How to show dimensions automatically on a drawing: • Annotate -> Show Model Annotations -> Select views, components, and/or features for which you want to show annotations -> V -> check on show -> Apply • How to delete dimensions on a drawing: • Select the dimensions you want to delete -> Delete

  3. Annotate 2 • How to show dimensions on a drawing by hand: • Display a dimension between two points: Annotate -> |<->| -> select one point and the other -> move the cursor to the location you want to place the dimension and press down the middle mouse key • Display a diameter for a circle: Annotate -> |<->| -> double click on the circle, move the cursor to the location you want to place the dimension and press down the middle mouse key

  4. Annotate 3 • How to show dimensions on a drawing by hand: • Display a dimension between two circle centers: Annotate -> |<->| -> click on one circle and the other -> Center -> Horizontal/Vertical -> OK • Display a radius for a circle: Annotate -> |<->| -> click once on the circle, move the cursor to the location you want to place the dimension and press down the middle mouse key

  5. Annotate 4 • How to insert a jog: • Select a witness line by click on it -> press down the right mouse key -> Insert Jog -> Pick point on the witness line for the jog -> Select the position for the jog using mouse drag • How to remove a dimension: • Click on the dimension you want to remove -> press down Del key on keyboard

  6. Annotate 5 • How to change arrow style: • File -> Drawing Options ->These options control leaders -> Option: draw_arrow_style; Value: filled, closed & open • How to change font: • File -> Drawing Options -> Active Drawing -> • drawing_text_height -> Option: draw_text_height; • Value: 0.08

  7. Annotate 6 • How to show a text symbol: • Select the dimension you want to add text symbol -> Press down the right mouse key -> Properties -> Display -> move the cursor before @D -> Text Symbol -> select special symbol

  8. Annotate 7 • Commonly-used values for the necessary parameters in a standard engineering drawing: • drawing_text_height: 3.5 (Active Drawing) • text_width_factor: 0.6 (Active Drawing) • projection_type: first_angle (These options control view and their annotations) • drawing_arrow_length: 3.5 (These options control leaders) • drawing_arrow_style: filled (These options control leaders) • drawing_arrow_width: 1.0 (These options control leaders) • drawing_arrow_style: filled (These options control leaders) • File -> Drawing Options -> change parameters -> Add/Change

  9. Multi-Sheet Drawing 1 • Add a new drawing sheet: • Layout -> New Sheet • Check the page number and total number of pages • Add a new model in the new drawing sheet: • Layout -> Drawing Models or File -> Drawing Models -> Add Model -> select new model with preview option -> • Open -> Done

  10. Multi-Sheet Drawing 2 • Create all the views: • General -> FRONT VIEW -> SIDE VIEW -> PLAN VIEW -> GENERAL VIEW • How to change scale: • Double click on the “view” -> Scale -> Custom scale -> • enter the proper scale you want -> Apply -> Close

  11. Multi-Sheet Drawing 3 • Add an assembly file (*.asm): • Layout -> New Sheet -> Drawing Models or File -> Drawing Models -> Add Models -> select an *.asm file -> Open -> No combined state (without exploded)/ Default (with default exploded) • You may need to explode the assembly by hand as • we discussed in a previous class.

  12. Announcement • Your homework assignments and midterm exam are due on Tuesday, Dec. 7, 2010. • I will post the final exam problems on Wednesday, Dec. 8, 2010 and collect your answers on Tuesday, Dec. 14, 2010, 10:30 PM at class room 237. This is a take-home exam. If you can finish it early, you may send me what I ask by E-mail. I will let you know if I receive all what I need via E-mail. • Finally, thank you and good luck to you all!

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