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Posts by Corey Rasmussen

link to Roller Coaster ‘Fury 325’ Closed After Major Crack Discovered

Roller Coaster ‘Fury 325’ Closed After Major Crack Discovered

Oh no! One of the premier coasters in the South is closed due to a structural crack! Luckily no one was hurt and the coaster closed without incident. Coasters are very safe so failures like these...

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link to It’s Not A 4D Coaster – Silly Freespin

It’s Not A 4D Coaster – Silly Freespin

There are certain things that get on my nerves like improper use of FEA and gussets. This is one of them. Most coasters are 4D coasters (Surge, pitch, roll yaw) but the S&S freespins are not 4D....

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link to DIY Track Fabrication: “Let’s Get Ready to Roll Form”

DIY Track Fabrication: “Let’s Get Ready to Roll Form”

Hopefully you all read that title with your best WWE announcer voice. Anyway, after the death of the Black Widow Backyard Roller Coaster due to failures in both PVC and ABS pipe failure, my kids...

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link to Backyard Roller Coaster Database

Backyard Roller Coaster Database

Wouldn't it be cool to know who has made a backyard coaster? I thought it would be! This is just the start, but us backyard coaster nerds have to stick together. Do You Have a...

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link to How I Designed My Backyard Roller Coaster Brake and Launch System

How I Designed My Backyard Roller Coaster Brake and Launch System

So we are reworking the Widow's Revenge to actually work. And we are getting close, very close. In the meantime, I wanted to show you the launch system and the brake needed to hold the cart in...

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link to Linear Motor Forces Revisited And Special Announcement – Part 6

Linear Motor Forces Revisited And Special Announcement – Part 6

So I messed up. Well at least for AC driven electromagnets. It turns out that everything I told you in Part 4 flips when we change voltage polarity. This is definitely going to change how our linear...

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About the Author

Corey Rasmussen is an award-winning professional engineer (NC and TX) with over 20 years of product design and development experience. He has two patents related to aerial lifts machinery, has advanced certifications in hydraulics and electronic controls, and specializes in designing mobile equipment. Corey is the principal engineer of Rasmussen Designs and is based out of Durham, NC.

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