A good minimum text size is 3/32″ (2.4 mm) high, or better yet 1/8″ (3.2 mm) high. Again, this is important information, and paper sets are often printed at half-size, so it’s good to avoid extremely small text. The title block text should generally be larger in size. It should be designed to make the remaining “work area” of the sheet as usable as possible for the type of work shown. It should not take up more “real estate” than is necessary. The “information table” part of the title block should be as compact as possible while still being easy to read. It helps the reader of the drawings to quickly locate the right sheet with the right information. The title block should be easy to see and read when you’re quickly rifling through a bound set of prints. This is helpful when discussing a drawing by phone. This “forces” the drawing author to keep the objects out of the “staple zone.”Some borders contain rulers (see the image above) with numbers or letters, to help locate a specific item by its coordinates. The border line along the left edge of the sheet should be given a wider margin if the binding is to go along the left edge. Sheets with no border around all sides are much more likely to be printed and bound out of alignment. The border around all four edges of the page is helpful in making sure that the paper prints (I know, I’m dating myself here) are printed properly. It may or may not include a border, as discussed above. Or it may only occupy a generally box-shaped area in the lower right corner.Ī title block with an attached revision block From there it may extend along the right edge to the top right corner, or across the bottom edge to the lower left corner. The title block information table is typically located in the lower right corner of the sheet. consistency of information between sheets. ![]() Blocks and xreffed title blocks have the following advantages: Yes, I have seen title blocks made of “live” lines and text objects within each sheet file, and I know of companies that use this method, but this is not considered best practice.įor most title blocks, a carefully made CAD block (AutoCAD calls this a “block reference”) or an xreffed title block file is the way to go. The title block should not be made of “live” lines and text sitting loose on the sheet. Each of these two options has advantages and disadvantages, which I’ll discuss in a future post. ![]() In CAD, the title block is typically either a CAD block within the sheet file, or an xreffed file. ![]() Title block for a government project CAD CONSIDERATIONS ![]() When we use the term title block in this post, we are referring to both the information table area and the border. It may also include a border that extends along the edge of one or more sides of the sheet. I tried to find a good, all-purpose definition for the term “title block” without success, so here is mine:Ī title block is a compactly-arranged area of the drawing sheet that contains information that is more or less common to all of the sheets for a specific project, such as the project name, designer name, client name, site address, issue date, author, checker, sheet number, scale, etc. I’ll go into more depth in a future post. This post will focus on a few basics only. Still, let’s try to identify some guidelines. A drawing for building a memory chip will have very different requirements than a drawing for building a cruise ship. It’s hard to generalize about title blocks, because the drawing documents are so different for different industries.
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