Design Graphics Mech 289

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Design GraphicsMech 289

• Nabil Shalabi
• 1st Feb 2008

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ClarificationsGCA 1 due Friday, 8th FebCAD 1
due Friday, 8th Febcheck the schedule for other
assignments
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CAD clarifications
In ProE dont worry about putting dimensions on
3D model
For GCA 1 you will need Reference planes
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TutorialTuesday, Thursdayfill FDA 1 Lab (seat
52 students) Then MC 10 lab (seats 20
students)
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Questions about Assignments
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Lecture Outline

• Manufacturing considerations
• Review of machine tool lab
• Creating models using drill charts
• Examples of parts and how to make them
• Discussion of specific models

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Manufacturing considerations

• Making sure that the Technician has no questions
  about how to make your model
• Tolerance (because machining is never 100
  accurate)
• Machining process used
• Stock you will use (standard dimensions)
• Tools you will use

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Lathe
Insert tool
Insert Piece (it will rotate)
Move tool in x y direction
Drill insert
http//www.iimc-india.com/images/lathe-machine/lat
he-machine-1a.jpg
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Milling machine
Attach tool (it will rotate)
Clamp piece to table using vice or tilt table
Move table in x-y-z directions
http//www.americanmachinetools.com/images/cnc_mil
ling_machine.jpg
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Drill Press
Move drill up and down
Insert drill bit (it will rotate)
Clamp piece to table
http//www.jayceetools.co.uk/images/Jet/jet-jdp-10
-lge.jpg
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Other Machines

• Band saw Grinder CNC

http//www.me.unlv.edu/News/MEGNews/CNC20in20pla
ce.JPG
http//www.powermaster-india.com/images/img67.jpg
http//www.poolewood.co.uk/acatalog/Basato-1.jpg
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Drill VS End mill
Drill bit
End mills
http//www.comparestoreprices.co.uk/images/ce/ceka
-drill-bit-set-multi-use-t3063.jpg
http//www.efunda.com/processes/machining/images/m
ill/end_mill_types_1.gif
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Counter bore VS countersink
Counter bore
Counter sink
Screw holes
http//www.topline.com.my/images/bild114.jpg

• Though you can use special tools for these
  operations

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Tapping
Make hole longer to account for the tip of the
tapping bit Specify the taping depth on drawing
Effective tapping
Non effective tapping
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stock

• http//www.mcmaster.com/
• Every single standard stock imaginable
• Every single mechanical component imaginable
• Use it when you design

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Examples
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Hardest piece I have ever machined
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My Design Graphics Project

• Come up with design
• 40 different pieces
• 4 iterations to get perfect
• 120 hours of work

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Sweeping a path