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link to How to Easily Calculate Gear Ratios in Planetary Systems

How to Easily Calculate Gear Ratios in Planetary Systems

Planetary gear systems can be intimidating to understand. There are so many types of motions and reductions possible that it can be overwhelming. The motion of planetary gear systems is expressed...

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link to How to Attach Gears, Sprockets and Pulleys to Shafts

How to Attach Gears, Sprockets and Pulleys to Shafts

Unlike the Lego gears and shafts shown below most motors have perfectly round shafts. This makes attaching gears, pulleys and sprockets difficult. The main methods of attaching gears to...

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link to FREE Hydraulic Hose Size, Pressure Drop and Calculator

FREE Hydraulic Hose Size, Pressure Drop and Calculator

Never guess again what hose size to use! Automatically the proper hose size for any application. Simply input a few measurable variables and click Calculate. This calculator adjusts for oil type...

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link to Top Life Lessons Learned from My Engineering Career (Part 1)

Top Life Lessons Learned from My Engineering Career (Part 1)

Even though my engineering career is far from over, I wanted to look back and reflect. I realized that midway through my career is probably the right point to do this because if I wait too long, I'm...

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link to Proper Tab and Slot Design and How to Avoid Serious Issues

Proper Tab and Slot Design and How to Avoid Serious Issues

Steel design seems to be moving in the direction of self-fixturing where the weldment or assembly components will align with each other. When a tab or slot is added to a part, the stress flow is...

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link to How to Connect Multiple Valves Using Power Beyond Technology

How to Connect Multiple Valves Using Power Beyond Technology

Connecting multiple valves together is always a challenge. You want to have individual valve functionality, but not loose sight of the overall system characteristics. Open center or through...

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link to Best Guide to Determining Deflection in Variable Cross Section Beams

Best Guide to Determining Deflection in Variable Cross Section Beams

Beam tables give information on and assume that the deflection calculation is based on a constant cross section.  So, what do we do if our beam has a cross section that changes over the length...

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link to The Best Guide to Two Stage Hydraulic Pumps

The Best Guide to Two Stage Hydraulic Pumps

Two stage pumps, often called log splitter pumps, are a great way to get better performance without increasing horsepower. A two-stage hydraulic pump is two gear pumps that combine flow...

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link to The Best Way to Read a Hydraulic Schematic

The Best Way to Read a Hydraulic Schematic

Reading a hydraulic schematic for the first time is a daunting and confusing thing.  There are so many symbols to identify and lines to keep track of.  I hope to impart to you a systematic...

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link to 6 Reasons Why Bolts Fail & How To Prevent It

6 Reasons Why Bolts Fail & How To Prevent It

This article is going to be a bit more technical than the previous article about fasteners, “The Magic of Fasteners.”  I’m going to try to keep it as simple as I can, but this topic is so...

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link to New Course! – FEA Best Practices for Beginners

New Course! – FEA Best Practices for Beginners

https://youtu.be/5kJnxOPIgy4 Welcome to Finite Element Analysis (FEA) with SOLIDWORKS Simulation for Beginners. This course is designed to take you from zero to confident in running meaningful...

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link to Intense Launch on Backyard Coaster with Ejector Airtime Insanity

Intense Launch on Backyard Coaster with Ejector Airtime Insanity

Buckle up for the wildest ride in the backyard coaster universe! Tilley’s Terror has leveled up with a 20 MPH launch that hits hard and not one, but two ejector airtime hills that'll have you...

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link to First Ride on Tilley’s Terror! Packs a Punch!

First Ride on Tilley’s Terror! Packs a Punch!

After months of design, building, and testing, we finally took the first ride on Tilley's Terror, our backyard launch coaster! Powered by a custom launch system, this ride already hits around 20 mph...

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link to How to Meter In/Out Pneumatic Cylinders + Mid-Stroke Stopping Explained!

How to Meter In/Out Pneumatic Cylinders + Mid-Stroke Stopping Explained!

In this video, we explore how to control the speed and motion of pneumatic cylinders using meter-in and meter-out flow control techniques. You'll learn the key differences between these two methods,...

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link to Coaster Kinematics Webinar (The Science of Smooth Thrills)

Coaster Kinematics Webinar (The Science of Smooth Thrills)

Originally live on Sunday, June 1st, 2025 at 2:30 PM EDT Ever wondered how roller coasters pull off thrilling loops, smooth turns, and jaw-dropping drops? In this fun and interactive webinar,...

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link to Tilley’s Terror: Backyard Launch Coaster VFD Burns Up During Braking!

Tilley’s Terror: Backyard Launch Coaster VFD Burns Up During Braking!

https://youtu.be/ktiWPf64Oi8 In this episode of our DIY backyard launch coaster project, Tilley’s Terror hits a major snag—our Variable Frequency Drive (VFD) keeps internally blowing up...

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About The Mentored Engineer

The Mentored Engineer is a resource for mechanical engineers of all skill levels, but geared for young engineers just entering the work force. The material here will minimize the time needed to get an engineer competent in his or her field.

Corey Rasmussen
Managing Director

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All content featured by the Mentored Engineer is for educational purposes. The Mentored Engineer does not practice engineering nor does it claim responsibility for designs based on content posted. It is the responsibility of the designer to check with local and state authorities and if necessary consult with a licensed professional engineer.

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