Mechanisms: Tension Control Bolts

If there’s an enduring image of how large steel structures used to be made, it’s probably the hot riveting process. You’ve probably seen grainy old black-and-white films of a rive…

3D Printering: Can You Ever Have Enough Vitamins?

As a community we owe perhaps more than we realise to the RepRap project. From it we get not only a set of open-source printer designs, but that 3D printing at our level has never become dominated …

Hydraulic Press Channel Puts Nuts To The Test

Have you ever wondered how many threads a nut needs to be secure? [Hydraulic Press Channel] decided to find out, using some large hardware and a hydraulic press. The method was simple. He took a st…

DIY Airless Tires Work Surprisingly Well

Airless tires have been “a few years away” from production for decades now. They’re one of the automotive version of vaporware (at least those meant for passenger vehicles), alway…

DIY Insulating Nuts And Bolts

[Rudi Schoenmackers] has devised a clever set of custom 3D-printed jigs that makes it easy to build your own wooden hex nuts and bolts. Well, easy if you have access to a woodworking shop with a ro…