CJ Race Cars gives a masterclass in precision fabrication, demonstrating how they notch, fit, and TIG weld 4130 chromoly ...

Joining the end of one piece of tubing to another is known as notching or coping (pronounced like "hope" with a c instead of an h) the tube. It's all based on angles that are determined by where you ...

Tubes! Not only is the internet a series of them, many projects in the physical world are, too. If you’re building anything from a bicycle to a race cart to and aeroplane, you might find yourself ...