Design Graphics
Mech 289
Nabil Shalabi
1st Feb 2008
Clarifications
GCA 1 due Friday, 8th Feb
CAD 1 due Friday, 8th Feb
check the schedule for other
assignments
CAD clarifications
In ProE don’t worry about putting dimensions
on 3D model
For GCA 1
you will need
Reference
planes
Tutorial
Tuesday, Thursday
fill FDA 1 Lab (seat 52 students)
Then MC 10 lab (seats 20 students)
Questions about Assignments
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
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
Lathe
http://www.iimc-india.com/images/lathe-machine/lathe-machine-1a.jpg
Milling machine
http://www.americanmachinetools.com/images/cnc_milling_machine.jpg
Drill Press
http://www.jayceetools.co.uk/images/Jet/jet-jdp-10-lge.jpg
Other Machines
Band saw
http://www.poolewood.co.uk/aca
talog/Basato-1.jpg
Grinder
http://www.powermasterindia.com/images/img67.jpg
CNC
http://www.me.unlv.edu/News/MEG
News/CNC%20in%20place.JPG
Drill VS End mill
End mills
http://www.efunda.com/processes/machining/images/mill/
end_mill_types_1.gif
Drill bit
http://www.comparestoreprices.co.uk/images/ce/ceka-drillbit-set-multi-use-t3063.jpg
Counter bore VS countersink
http://www.topline.com.my/images/bild114.jpg
Tapping
Make hole longer to account for the tip of the tapping bit
Specify the taping depth on drawing
stock
•
•
•
•
http://www.mcmaster.com/
Every single standard stock imaginable
Every single mechanical component imaginable
Use it when you design
Examples
Hardest piece I have ever
machined
My Design Graphics Project
•Come up with
design
•40 different pieces
•4 iterations to get
perfect
•120 hours of work
Sweeping a path