Take the priority schedules as developed in the drum of the previous chapter.
The start of the production is in week 10 at Monday morning 8 o'clock.
| Order |
Quantity |
Due Week |
Due Day |
Run Time |
Week Finish |
Day Finish |
|
| 6 |
50 |
10 |
3 |
500 |
10 |
2 |
|
| 1 |
75 |
10 |
3 |
750 |
10 |
3 |
|
| 4 |
40 |
10 |
4 |
400 |
10 |
4 |
|
| 5 |
80 |
10 |
5 |
800 |
11 |
1 |
Too Late |
| 3 |
30 |
11 |
1 |
300 |
11 |
1 |
|
| 2 |
60 |
11 |
3 |
600 |
11 |
2 |
|
|
Table 4.1.: Order Load Factory |
Because this is a priority schedule, run and finishing times in
this example are ONLY estimated times on the constraint and only serve to
give an indication, when the raw materials should be issued. Suppose we use a
buffer time of 1 day.
When should in this case the material be issued?
| |
|
Due |
Run
Time |
Start Constraint |
Finish |
CB -8 Hours release |
|
| Order |
Quantity |
Week |
Hour |
Week |
Hour |
Week |
Hour |
Week |
Hour |
|
| 6 |
50 |
10 |
24 |
500 |
10 |
0 |
10 |
9 |
9 |
0 |
|
| 1 |
75 |
10 |
24 |
750 |
10 |
9 |
10 |
21 |
10 |
1 |
|
| 4 |
40 |
10 |
32 |
400 |
10 |
21 |
10 |
28 |
10 |
13 |
|
| 5 |
80 |
10 |
40 |
800 |
10 |
28 |
11 |
1 |
10 |
20 |
Too Late |
| 3 |
30 |
11 |
8 |
300 |
11 |
2 |
11 |
6 |
10 |
33 |
|
| 2 |
60 |
11 |
24 |
600 |
11 |
6 |
11 |
16 |
10 |
38 |
|
|
Table 4.2.: Constraint Buffer and Raw Material Issue |
|
|
