4. CONCEPT EVALUATION AND PRODUCT ARCHITECTURE - P-Odd-2022/Repo-05 GitHub Wiki
Assign weights to the objectives
| Sl No | Objectives | Weights |
|---|---|---|
| 1 | Budget | 5 |
| 2 | Ease of working | 7 |
| 3 | Space | 6 |
| 4 | Safety | 8 |
| 5 | Aesthetic | 4 |
| 6 | Portable | 5 |
PUGH CHART
| DESIGN OBJECTIVE | WEIGHT | CONCEPT 1 | CONCEPT 2 | CONCEPT 3 | CONCEPT 4 |
|---|---|---|---|---|---|
| BUDGET | 5 | + | + | DATUM | -- |
| EASE OF WORKING | 7 | + | ++ | DATUM | - |
| STORAGE | 6 | + | - | DATUM | -- |
| SAFETY | 8 | + | + | DATUM | + |
| AESTHETIC | 4 | - | + | DATUM | + |
| PORTABLE | 5 | + | + | DATUM | - |
| + SCORE | 31 | 37 | 0 | 12 | |
| - SCORE | 4 | 6 | 0 | 34 | |
| TOTAL SCORE | 27 | 31 | 0 | -22 |
JUSTIFICATION FOR THE SCORES GIVEN
| Design No. | Objective | Score Allocated | Justification for the score |
|---|---|---|---|
| 1. | Budget | +5 | Affordable |
| Ease of working | +7 | Little difficult for use as it is small | |
| Storage | +6 | Easily storable as it is small | |
| Safety | +8 | No edges | |
| Aesthetic | -4 | Not so good looking | |
| Portable | +5 | easy to carry | |
| 2. | Budget | +5 | Affordable |
| Ease of working | +14 | Works on connecting Arduino to laptop and uploading the program | |
| Storage | -6 | Large | |
| Safety | +8 | No sharp edges | |
| Aesthetic | +4 | Stylish and sophisticated | |
| Portable | +5 | Easy to carry | |
| 3. | Budget | 0 | DATUM |
| Ease of working | 0 | DATUM | |
| Storage | 0 | DATUM | |
| Safety | 0 | DATUM | |
| Aesthetic | 0 | DATUM | |
| Portable | 0 | DATUM | |
| 4. | Budget | -10 | Expensive |
| Ease of working | +7 | Difficult as it has function for changing pens | |
| Storage | -12 | Larger and requires more space | |
| Safety | +8 | No sharp edges | |
| Aesthetic | +4 | Stylish | |
| Portable | -5 | As it is large,it is difficult to carry |
JUSTIFICATION
AMONG THE FOUR GENERATED DESIGNS , DESIGN 2 SEEMS TO BE MORE EFFICIENT , LESS COST , MORE RELIABLE , BETTER FUNCTIONING AND ONE STEP AHEAD IN ALL FEATURES.
- COST : AFFORDABLE
- FLUENCY : FLEXIBLE MOTION AND USER FRIENDLY
- SPACE : FITS CORRECTLY WITH GIVEN DIMENSION
- AESTHETICS : CLASSY LOOK
MECHANISM -XY PLOTTER
Based on the program written and with the help of servo motors and arduino mega,the plotter moves along x and y axis. The plotter is made to move along x and y axis using plain shaft with slider , threaded shaft with coupling and nuts.
- Coding software-c or c++
- Processor-Arduino mega
- Motor-Servo motor , Stepper motor
Functional Clustering
SUBSYSTEM LIST
| Sl.No | Subsystems |
|---|---|
| 1. | Response Unit |
| 2. | Indicating Unit |
| 3. | Pattern Handling Unit |
| 4. | Control Unit |
Interaction betweem subsystems
| Response Unit | Indicating Unit | Pattern Handling Unit | Control Unit |
|---|---|---|---|
| Material Iteraction | ❌ | ❌ | ❌ |
| Data Interaction | ✔️ | ✔️ | ✔️ |
| Spatial Interaction | ❌ | ❌ | ❌ |
| Indicating Unit | Pattern handling Unit | Control Unit | Response Unit |
|---|---|---|---|
| Material Interaction | ❌ | ❌ | ❌ |
| Data Interaction | ✔️ | ✔️ | ✔️ |
| Spatial Interaction | ❌ | ❌ | ❌ |
| Pattern Handling Unit | Control Unit | Response Unit | Indicating Unit |
|---|---|---|---|
| Material Interaction | ✔️ | ❌ | ❌ |
| Data Interaction | ✔️ | ✔️ | ✔️ |
| Spatial Interaction | ❌ | ❌ | ❌ |
| Control Unit | Response Unit | Indicating Unit | Pattern Handling Unit |
|---|---|---|---|
| Material Interaction | ❌ | ❌ | ✔️ |
| Data Interaction | ✔️ | ✔️ | ✔️ |
| Spatial Interaction | ❌ | ❌ | ❌ |