Part symmetry

Using Part Symmetry, or Lack Thereof, to Your Advantage

When designing parts for assembly, part symmetry, or lack of symmetry, can be an important factor to consider.  In this article we look at when it’s appropriate to add part symmetry, and when asymmetry is a better option. Symmetrical Parts Designing symmetrical parts, weldments, and sub-assemblies can provide advantages such as reduction of unique parts, …

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Exposing Project Schedule Risk Hidden in Best Estimates

When we try to estimate a project completion time, often the temptation is to use a best guess completion time for each task, find the critical path, and add up the times.  This method lacks information about the project schedule risk, and if done honestly, often results in a finish time later than the due …

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Project Risk Analysis - Hanging Climber

Qualitative vs. Quantitative Project Risk Analysis – What’s the Difference?

As part of risk management, a project risk analysis is performed to assess the impact of risks and the probability of the risk occurrence.  In this article we will look at the differences between qualitative and quantitative project risk analysis. To see how project risk analysis fits within risk management, please refer to this article. …

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Manufacturing decision - factory floor

Evaluating a Manufacturing Decision with a Decision Tree

In this application brief we will look at a manufacturing decision to make a key sub-assembly of a product in-house or to outsource.  If it’s made in-house, we also will look at whether it should be assembled with highly automated process or a more labor intensive process. Therefore, we have three options in our manufacturing …

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Monte Carlo simulation in purchasing - components

Using Monte Carlo Simulation for Purchasing Decisions

Using Monte Carlo simulation for purchasing decisions can allow for overall cost reduction by selecting optimum order quantities.  In this article we will explore how to use simulation to minimize the total cost of a purchased component. When using purchased components, the purchase price is only part of the total cost.  Carrying cost also should …

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