Tutorials

Engineering

CAD

How to Estimate Fatigue in Mechanical Assemblies and Structures

How to Measure Dynamic Boresight Alignment (AKA Jitter Metrology)

How to Estimate Aircraft Cabin Temperature Over Time

NASA Fastener Design Handbook

SolidWorks Best Practices from working with Large Assemblies

1. All sketches should be defined
    -If you don't do this, then someone could go in and change it later
    -This probably also takes more solidworks memory
2. When designing a part, pick an origin that creates the most symmetry
    -There are so many times when you want to mate to the mid plane of a part
    -Going back later to create mid-planes creates extra complexity
3. Make mates as heirarchial as possible
    -That which is not heirarchial cannot be controlled
    -Conflicting states can be encountered in large assemblies if things are not heirarchial
    -If suppressing another extraneous part can affect your mate, then it is not heirarchial enough
4. If your assembly involves lots of configurations with different positions, try to 
make each set of mates, between assemblies, have only 1 correct solution
    -Solidworks does an iterative solution and initial conditions can vary, so 
if your initial conditions can lead to a different result, they eventually will
5. In the initial phase of a project, a top-down model is usually desireable, but during the 
completion phase of a project it is important for the model to be ground-up
    -Since the model is ground-up it can actually be used to check clearances and interferences

13 Considerations for Precision Optical Design

Machining

How to calculate hot-cold interference fits