A CAD drawing has no units. It has numbers. The units live in an agreement between everyone who touches the file, and when that agreement breaks you get a door 900 millionths of a millimetre wide, or a site plan that arrives a thousand times too small. This is the convention for metric work, and what to do when a file turns up and you cannot tell what it is in. The rule: … [Read more...] about Metric Units in CAD: mm, m or km, and Why It Matters
CAD Standards
Autodesk Certification: A New Way to Certify
If you love collecting certificates and quailifcations, this new offering may interest you from Autodesk. Whether you’re an emerging or seasoned professional, Autodesk's certification program gives you the tools and training to acquire new skills, accelerate your career, and prosper through disruption to achieve the new possible. Check it out at: … [Read more...] about Autodesk Certification: A New Way to Certify
ISO 3098B SHX Font for AutoCAD – Free Download
ISO3098B font style - An Engineering Drafting Standard. About SHX and SHP files File extensions SHX and SHP are both shapefile formats. These can be used to define text fonts or symbol fonts in AutoCAD. An SHX file contains a shape or font compiled by Autodesk AutoCAD from an .SHP shape file or .PFB font file. It stores shape definitions, as well as font definitions for … [Read more...] about ISO 3098B SHX Font for AutoCAD – Free Download
CAD Line Weights & Pen Colours: The Real ISO Chart
Complied by YZ. Color your judgment In a CAD system, colours are most commonly used to represent line weights. Selecting different colours is just like picking up pens with varying line thickness. We then tie these colours into layers to control the visibility of drawing components. There are no right and wrong colouring systems — but there are some that have … [Read more...] about CAD Line Weights & Pen Colours: The Real ISO Chart
Paper Sizes Chart: ANSI, ARCH & ISO A (Free Printable PDF)
Free printable chart: every ANSI, Architectural and ISO A sheet size on one A4 page, in inches and millimetres — download the Drawing Sheet Sizes reference chart (PDF). Print it and pin it above the desk. North America runs two separate series of drawing sheet sizes, and they use the same letters. ANSI A to E are the engineering sizes built up from Letter paper. Arch A … [Read more...] about Paper Sizes Chart: ANSI, ARCH & ISO A (Free Printable PDF)
Spatial Data Formats: Preferred File Type by Data Type
Information Type Preferred Format Extension Comments CAD (Computer Aided Design) Data AutoCAD Drawing file DWG Shall be compatible with AutoCAD Release 2007 GIS Data ESRI Shapefile SHP, SHX and DBF GIS Data Geodatabase oracle spatial SQL server SAP ESRI personal geodatabase Digital Elevation Models Band Interleaved by … [Read more...] about Spatial Data Formats: Preferred File Type by Data Type