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Low Cost Automation Tutorial

#049 About Good Designs

Category : Hints on designing
July 9, 2010

In order to execute effective LCA, the concept of "Good Designs" needs to be first understood, before a good plan can be constructed.

Let us think about "Good LCA Designs"
The closest critics on any LCA machines or jigs are the operators who use the manufacturing systems on factory floors. Therefore, the most sought aptitude for an LCA Designer would be an ability to present "good" suggestions or proposals to those operators. Such aptitude would be backed up by the following.

1. Adequate product knowledge
2. Complete understanding on manufacturing processes and operation details
3. Ability to understand product cost structure
4. Sufficient knowledge (or understanding) on relevant manufacturing technology

The meaning of a word "Good" has revolved and evolved over the years as the industrial era phases have. Since the twilight time of the industrial automation age, a unit of measurement for the success has been a Corporate Principle driven return on investment, or cost vs. performance. But in recent times, socioecological parameters (i.e. effects on industrial waste management costs) are also being included. A prominent example of the above is Life Cycle Cost (LCC: see Notes-1).

LCC: Life Cycle Cost
A concept of evaluating the total cost of an equipment from development/manufacturing to decommissioning/disposal. Quantitative measurement is calculated by the following.


Therefore, the LCA designer must devise effective designs taking in consideration the needs of the surrounding operators as well the socioecological factors. The functional keywords in "Good"LCA can be consummated as below.

Required LCA functionality
Aim for "Good" LCA
V: LCA functionality of "Value"LCA that keeps specification variation to a minimum.
Q: LCA functionality of "Quality"LCA that achieves zero defects
C: LCA functionality of "Cost"LCA that depreciates less.
D: LCA functionality of "Timing (delivery)"LCA LCA that can respond to product changeover.
P: LCA functionality of "Productivity"LCA that is easy to use, and easy to setup change.
S: LCA functionality of "Safety"LCA Safe to use LCA
L: LCA with high ratio in "Cost vs. Performance"LCA Low maintenance and disposal costs.