newLecture--Week08 - Project Directed Dissection and...

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Project Directed Dissection and Introduction to Gear Design (Spur & Rack Gears) ¤੏ Engineering Design & Graphics ¤੏ Engineering 1C03 ¤੏ Dr. T. E. Doyle
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Overview ¤੏ Directed Dissection ¤੏ Introduce Ideal Spur Gear Design ¤੏ Design Equations
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Directed Dissection ¤੏ I will open the CD-ROM in lecture and we will examine the contents, with particular attention to the project related parts. ¤੏ If you speak with upper year students, many will tell you that you need to buy a CD-ROM drive (+ tools) and dissect it yourself. It is not necessary to do this. ¤੏ Open CD-ROM...
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The CD-ROM ¤੏ Note the position of: ¤੏ Motor, ¤੏ Spur / rack, ¤੏ Bevel (we will not use bevel gears), and ¤੏ Read-head. ¤੏ For your project, the shown mechanism is not available and you must redesign the gear train. Your motor will be in a completely different location and your design is space limited.
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The CD-ROM 2 Motor Spur / rack Bevel Read-head Rails
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Project Notes ¤੏ The project spec will be periodically. (Please check often) ¤੏ If you are unclear on the specification of the objectives, please ask! (and ask early!) ¤੏ Instructional Assistant Interns have office hours every day ¤੏ Dr. Doyle has office hours on Mondays and Tuesdays from 2-3pm.
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Simplified Ideal Gear Design ¤੏ As suggested in your project part-1, your simplified ideal gear design can be composed of primitive shapes (e.g. cylinders, disks, etc.) ¤੏ Recall the lecture discussion example regarding two cylinders in contact...
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Simplified Ideal Gear Design 2 ¤੏ Consider the ideal case of two parallel cylinders that are in contact through a point of tangency.
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