Thursday, October 8, 2026
The Waterwheel Gearbox Failed Catastrophically
Crazy Build

The Waterwheel Gearbox Failed Catastrophically

The waterwheel has been in constant use now for a couple of years but over Christmas the gearbox failed. Two of the bearings failed catastrophically and destroyed the inside of the gearbox. The wheel was shut down until I could get over there to fit a new gearbox. So in this video we go and…

Timber Framed Barn Part 36 Top Floor Door
Crazy Build

Timber Framed Barn Part 36 Top Floor Door

In this video I get the door hung on the top floor. The windy wet weather has been blowing in so I didn't have time to make a door. I looked around locally and there wasn't much available secondhand. eventualy I found this door. The pictures were not great but it was cheap and not…

The Problem with Titanium
Crazy Build

The Problem with Titanium

Professionals can get up to 6 months of free Onshape Professional access - https://onshape.pro/EfficientEngineer. Thanks to Onshape for sponsoring this video. --- Titanium is widely regarded as one of the more advanced engineering materials in regular use. It’s strong, lightweight, corrosion-resistant, and capable of operating in extreme environments. In this video, we explore the science…

The Problem with Stainless Steel
Crazy Build

The Problem with Stainless Steel

Professionals can get up to 6 months of free Onshape Professional access - https://onshape.pro/EfficientEngineer. Thanks to Onshape for sponsoring this video. --- Stainless steel has earned its reputation as one of the most corrosion-resistant materials in engineering. But when used in the wrong environment, that reputation can be dangerously misleading. This is exactly what happened…

Understanding Calculus (for engineers)
Crazy Build

Understanding Calculus (for engineers)

Go to https://brilliant.org/efficientengineer/ to try out the Brilliant course on Calculus for some hands-on learning. You can use this link to get 20% of an annual membership! -- This video explores one of the most powerful tools in engineering - calculus. By looking at how quantities change and how those changes accumulate, calculus helps describe…

Understanding Steels and Heat Treatment
Crazy Build

Understanding Steels and Heat Treatment

Visit Protolabs and get an instant manufacturing quote! https://www.protolabs.com/?utm_source=theefficientengineer&utm_medium=youtube&utm_campaign=AMER-General-Q1-Global_Brand_Campaign_2025&utm_content=videodescription -- This video explores the superpower of steels - heat treatment, the precise heating and cooling of steel that allows the microstructure and so the properties of the material to be finely adjusted. It's one of the main reasons steel is so dominant in engineering. --…

Understanding Friction
Crazy Build

Understanding Friction

Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/theefficientengineer Watch the second episode of the microstructure series about Shape Memory Alloys: https://nebula.tv/videos/the-efficient-engineer-piezoelectric-materials Friction plays a role in every mechanical system, from gears and bearings to tires on the road. In this video, we examine what friction is, where it comes from, and…