Coin based water dispensar project .pptx

Project for Mechanical Engineering Drawing

1. COIN-BASED WATER DISPENSER SYSTEM Group 7

2. Coin Based Water Dispenser Fully automated Uses Arduino, IR sensor and Coin sesor . Detects coin and presence of cup Senses water level in cup Efficient Water saving

3. Sources of Information Customer survey Brainstorming Internet www.nevonprojects.com nesdlabs.wordpress.com Books Dieter GE, Schmidt LC - 2012, Engineering Design

4. Other concepts Wall mounted Direct piping water dispenser

5. Concept Drawings Coin based Wall mounted Direct piping water dispenser

6. TRIZ Problem Identification: If the coin based water dispenser is made on a larger scale Transportation of a big machine is difficult More time required to fill the glass Formulation Insufficient energy generated by ordinary components and large machinery prohibit the production of coin based water dispenser on a larger scale

7. TECHNICAL CONTRADICTION Weight of non-moving object Force Pressure Temperature Durability Power Accuracy of measurement Complexity of the device Harmful factors acting on the object Convenience of use PRINCIPLES Principle 1 – Segmentation Principle 7 – Nesting Principle 14 - Spheriodality -Curvature Principle 15 - Dynamicity Principle 16 - Partial Actions Principle 17 - Another dimension Principle 18 - Mechanical Vibrations Principle 23 - Feedback Principle 30 - Flexible films or thin membranes Principle 31 - Use of porous materials Principle 40 - Composite Structures

8. Adaptation Principle 1 – Segmentation - There should be assembling/disassembling characteristics. - The parts should be assembles at the targeted area Principle 18 – Mechanical Vibrations - To make full use of all the power - Increases Durability

9. Analytical Hierarchy Process (AHP)

10. Average Value of Cons. = λ = 6.626 n=6. RI = 1.25 ( From table 7.11)   Consistency Index: 4   Consistency Ratio : CR= CI/RI = 0.1252/1.25 CR=0.100 Consistent Results  

11. Selection of the concept Best Concept: Wall Mounted Water Dispenser

12. Parametric Design

13. Product Architecture

14. Configuration Design

15. Tolerance and Surface Finishing Most of the components are manufactured using the process : 1. milling 2. turning Both of these processes are expected to provide smooth surface finish and assure accuracy in the tolerance results. Surface roughness: 𝟑𝟎 𝝁 in. tolerance range: 0.002 in. for finish mill, 0.0005 in. for finish turn/finish grind Generally, finish machining process provide tolerance of ±0.003 - ±0.001 in. The value of tolerance also has an influence on the processing costs. The chosen value for tolerance is ±0.002 in. and therefore the increase in cost percentage is 135 %

16. Assembly Drawing