Posts by Corey Rasmussen

Jaw type shaft couplers are a lifesaver. These wonderful pieces of machinery allow for torque transmission between two different items and account for radial, angular and axial misalignment. It also...

Springs are essential to life. In fact everything on the planet acts like a spring, which follow Hooke’s law (F = k *x) . When force is applied to an object, it will deflect. If more force is...

Nuts are the basic counterpart to bolts and screws. Most folks do not realize that nuts have grades just like screws. Typically, these grades will be stamped on the nut and need to match the...

Since I was a young kid, I've been fascinated with roller coasters. I have build many functioning model and Lego roller coasters over the years. In fact, after a trip to Six Flags Magic Mountain, I...

Metal fabrication is unfamiliar to most of us. Fortunately it comes with cool tools that create fire and sparks! As I begin to cut and prep tubes for welding, let me show you the steps...

Well, the day has finally come! We are ready to do our first runs on the Black Widow Roller Coaster! After running the cart with 180 lbs of load (1.5 times intended load) for three circuits on...