A master model is required before a product is
actually processed in a machine. A present research
build a prototype of master model machine in spin
casting technology which is not reliable for production
process.
The present master model machine was evaluated and
redesigned focused on the need of larger mold frame and
eliminate prop usage to enhance the reliability of
producing good quality of master product souvenirs made
from tin. The evaluation was started by constructing
Functional Decomposition Diagram. Later, the decomposed
part list was classified to its critical function based
on Function Analysis. Failure Modes Effects Analysis
(FMEA) was performed to evaluate failures of current
machine. Those failures were become input for redesign
process. Mechanical Design Procedure, Grid Analysis, and
Tree Diagram were performed during redesign process.
Some defects were found during experimental works of
Adaro business card holder using the new master model
machine. The Cause and Effect Diagram was performed to
find best solution to solve related problems.
By the end of the research, master model machine
with dimension 530mm x 440mm x 710mm; operating speed at
460 rpm; maximum silicone rubber dimension 204mm x 178mm
x 36mm ; electricity power 373 W and Adaro business card
holder product were obtained. The production time is 11,
15 minutes and the production cost per unit is IDR
10,500.00.