Category: Mechanical Design

If you've ever ridden it, you know the mere 17 second ride on Top Thrill Dragster is nothing less than perfection. You are accelerated to 120 mph (193 kph) in under 4 seconds and then rushed over a...

I recently had the pleasure of being interviewed by Spence Krause from the Pittsburgh Robotics Company SKA. Please enjoy as Spencer and I discuss life, work, failure and of course: Roller...

Parallel links are one of the best and easiest ways to maintain level with the ground, but often we just need to keep the same angle.  I once designed a holder for a seam welding robot that...

There are some "old" machines that are just fascinating to see how they work. This is one of them! I am always amazed how complex operations were done in years passed without the use electronic...

There are many times in my design career that I needed to translate an object without rotating.  Lifting an object on a table is a great example of this.  At an airport we may see a baggage loader...

Several times in my career, I have come across this very unique stress pattern when dealing with holes that are subject to shear stress. Let's unpack this and see what causes it and how to fix...