Here are some of the best websites for free DWG file downloads for CAD drafting: blocks.draftsperson.net: This is one of the oldest and most comprehensive free CAD block websites around. It has a history dating back to 2002 and offers a wide range of categories, such as architecture, civil, equipment, furniture, people, vehicles, and more. You can download the DWG files … [Read more...] about Top 5 Free DWG File Download Websites for CAD Drafting
Drafting Standards
Drafting Standards – What metric units do I draw with?
What metric units do I use in my architectural, structural, building services or civil disciple drafting projects? Is it millimetres (mm), centimetres (cm), metres (m) or kilometres (km). In AutoCAD do I draw my architectural plan in mm or cm? How about Civil plans is it m or km? What is the industry drafting standard? In this video tutorial I will show you what is used on a … [Read more...] about Drafting Standards – What metric units do I draw with?
P&ID Valve Symbols: What to Use for Each Valve Type
For my P&ID drafting of valves, what industry standard symbols should I use? A handy chart for P&ID Drafting DWG and PDF file formats of these symbols can be downloaded at: https://blocks.draftsperson.net/download/pid-valve-symbols/ … [Read more...] about P&ID Valve Symbols: What to Use for Each Valve Type
Standard Hole and Slot Sizes for Bolts (AISC Chart)
This information applies to the American Steel Industry. The hole sizes below are the nominal hole dimensions tabulated in ANSI/AISC 360-22, Specification for Structural Steel Buildings — Section J3.2 covers the size and use of holes, and Table J3.3 is the table itself. Confirm against the edition your project is designed to before detailing from any chart on a … [Read more...] about Standard Hole and Slot Sizes for Bolts (AISC Chart)
Weld Symbols Chart: AWS A2.4 Guide + Free Printable PDF
A welding symbol tells the fabricator exactly what weld to make, where to make it, how big, and how to finish it — in a mark small enough to fit beside a detail. This guide covers the American system, AWS A2.4, which is what most steel detailing offices work to. Every weld type and supplementary symbol is set out below in plain text so you can search this page, plus the … [Read more...] about Weld Symbols Chart: AWS A2.4 Guide + Free Printable PDF
Bolt Edge Distance: AISC Values and the 2010 Change
This information applies to the American Steel Industry. This page carries the older AISC minimum edge distance table — the one with two columns, a larger set for sheared edges and a smaller set for rolled or cut edges. That table was superseded in 2010. It is kept here, clearly labelled, because a great many charts still in circulation look like it and because anyone … [Read more...] about Bolt Edge Distance: AISC Values and the 2010 Change