Here are some links that you may find useful in different areas : (Please report any broken links to the Webmaster.).  All links will open in a new window.

If you wish to have a link here we will expect a return link and not on one of those php list pages with hundreds of websites..... in other words a real link.

Metalwork / Engineering

TY's Project Page
The Particle Adventure

Technical Graphics / Technical Drawing

International Standard Paper Sizes