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Design Graphics Mech 289

Design Graphics Mech 289. Nabil Shalabi 1 st Feb 2008. Clarifications GCA 1 due Friday, 8 th Feb CAD 1 due Friday, 8 th 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.

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Design Graphics Mech 289

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  1. Design GraphicsMech 289 Nabil Shalabi 1st Feb 2008

  2. ClarificationsGCA 1 due Friday, 8th FebCAD 1 due Friday, 8th Febcheck the schedule for other assignments

  3. CAD clarifications In ProE don’t worry about putting dimensions on 3D model For GCA 1 you will need Reference planes

  4. TutorialTuesday, Thursdayfill FDA 1 Lab (seat 52 students) Then MC 10 lab (seats 20 students)

  5. Questions about Assignments

  6. 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

  7. 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

  8. Insert tool Lathe Insert Piece (it will rotate) Move tool in x – y direction Drill insert http://www.iimc-india.com/images/lathe-machine/lathe-machine-1a.jpg

  9. 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_milling_machine.jpg

  10. 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

  11. Other Machines Band saw Grinder CNC http://www.me.unlv.edu/News/MEGNews/CNC%20in%20place.JPG http://www.powermaster-india.com/images/img67.jpg http://www.poolewood.co.uk/acatalog/Basato-1.jpg

  12. 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/mill/end_mill_types_1.gif

  13. 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

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

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

  16. Examples

  17. Hardest piece I have ever machined

  18. My Design Graphics Project • Come up with design • 40 different pieces • 4 iterations to get perfect • 120 hours of work

  19. Sweeping a path

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