1. March (9&10) 2015 ENGR B47 Intro. to Egr. & Design Lab #8 Spinning Tops

2. Schedule / Timing Week 7: Tutorial, start basic design Week 8: Design two prototypes Week 9: Eval. prototypes, final design Week 10: Attach hardware, eval. present 2 NOTE: Change from Syllabus

3. Groups Form groups of four –Must have two people you haven’t worked with yet –Should have six total groups Don’t have group yet? –Will be placed with other today –Will have to play catch-up

4. Should Be Done Already Tutorial on Weebly site Link: http://www.weebly.com/uploads/3/8/5/2/38520113/solidworks_top.pdfhttp://www.weebly.com/uploads/3/8/5/2/38520113/solidworks_top.pdf –Courtesy of Darren Willis –Very basic, but the process is powerful The basics –Contact info –Delegation –Inspiration / preliminary design calculations 4

5. Today’s Agenda Two prototype designs –STL files –Note widest/tallest dimension in email –All group member last names (in email and file name) Batch print & return to you next week Finalize groups (new additions?) Hand out LED booklights to groups 5

6. Official Top Specifications Constraints: –2.5” height x 2.5” width (by 2.5” depth) maximum –ABS plastic printed on Fortus from STL file –Must accommodate two pieces of hardware (preferably without extra-processing) Hardware –Socket Attaches to rotary tool for launch Nominal.375” diameter x.375” height –Pin / Pivot Can be modified for height / point.125” diameter x.875” height (as received) 6

7. As You Go... SAVE EARLY SAVE OFTEN –Use different file names “Aderhold Basic Top 01” “Aderhold Basic Top 02” “Aderhold Prelim Design A 01” “Aderhold Layered 18 (Final Export)” –Will need USB or file hosting service Screen cap of basic designs Document decisions, tradeoffs Ask questions, don’t assume 7 Review

8. Solidworks Connection Procedure Log in as “.\Laptopuser” Turn off wireless with toggle switch Plug in to ethernet Open up Solidworks 2011 program Open new file Remove ethernet cord and keep wifi off Save often 8

9. Other Possibilities Autodesk Inventor is comparable program –Free student license / download (here)here –Can install on personal computer Solidworks available in MS-9 & MS-10 –Look for open hours on schedule outside door –Should run faster / smoother –Can save on network drive 9