| Part
Name |
Part
Number |
# of
Parts |
Handling
Code |
Handling
Time |
Insertion Code | Insertion
Time |
Operation
Time |
Labor
Rate |
Operation Costs | Theorectical
Part |
| led
container |
1 | 1 | 2 0 | 1.6 | 0 0 | 1.5 | 3.1 | 20 | .25 | 1 |
| spring | 2 | 1 | 1 9 | 3.30 | 3 0 | 2 | 5.3 | 25 | .15 | 0 |
| pencil
casing |
3 | 1 | 2 0 | 1.6 | 0 0 | 1.5 | 3.1 | 20 | .10 | 1 |
| metal
clamp |
4 | 1 | 2 4 | 2.85 | 3 0 | 2 | 4.85 | 20 | .10 | 0 |
| led cap | 5 | 1 | 1 4 | 2.55 | 3 0 | 2 | 4.55 | 20 | .05 | 1 |
| tip
dispenser |
6 | 1 | 2 8 | 3.38 | 3 2 | 4 | 7.38 | 20 | .10 | 0 |
| eraser | 7 | 1 | 0 1 | 1.43 | 0 0 | 1.5 | 2.93 | 20 | .03 | 0 |
| needle | 8 | 1 | 0 8 | 2.45 | 9 9 | 12 | 14.45 | 25 | .02 | 0 |
| eraser holder | 9 | 1 | 2 1 | 2.1 | 3 0 | 2 | 4.1 | 20 | .03 | 0 |
Efficiency = 3*(theorectical min)
actual time
Efficiency = .18*100 = 18%
REDESIGN
1.) Remove the metal clamp and make it the same material as its casing. By doing this, one plastic mold could by made with the clamp formation already shaped into the mold. This cuts down on one operation, costs and handling/insertion time.
2.) All the other parts seem to be necessary and design in a way that seems the most reasonable at this time, the only part that really needs consideration is the needle. It takes the most time for insertion and its a delicate part to handle. At this time I can not think of another way in pushing the led forward without using that needle. Hmmmmm...............Something to think about.:)
In removing the metal clamp, assembly time decreases down to 44.91
making the new efficiency to be 20%.