![]() This is a great way to advertise your company on a useful product. Sounds messy, but it was an economical and accurate way to make copies.Įmail your logo to us, and we can put it on the architect tape measures for you. Architectural Scale Ruler for Blueprint, 12'' Metric Metal Engineers Triangle Drafting Ruler with Imperial Measurements for Architects Engineering, Artists, Draftsman Drawing, Laser-Etched Markings 4. The master that you made on the translucent sheet could be used many times again. When immediately washed with water, the result was an image of white lines, etc., on a blue background. The lines that you drew would not allow the bright light to get through. So if you would make a drawing on a translucent sheet of tracing paper, and place it over a saturated sheet of paper (the blueprint paper), a bright light would burn a negative image onto the blueprint paper. Without bright light, it would NOT "burn" into the paper. When exposed to bright light, it would "burn" itself into a sheet of paper. In the mid-1800s, scientists discovered that if you mixed potassium ferrocyanide with ammonium iron citrate, a special solution was created. In the days before Xerox copiers, the construction industry needed a way to produce multiple copies of large sheets of paper, without tracing the drawing by hand. You're done! Trivia: Why were blueprints always "blue" in the past? Architectural Scale Ruler, Imperial Measurements 12'', Laser-Etched Aluminum Architect Triangular Ruler Black for Architects, Students, Draftsman, and Engineers by Mveohos. Then to get the rest of your measurement (the decimal part), slide the rounded down marking to the end of your object, and read the decimal part where the beginning of your object lines up with your scale. Designed for both professional architects and architecture students. Go to the end of your object and get the measurement, rounding it down. Align the zero mark with the beginning of your object on the blueprint. If your architect scale ruler's zero mark is not at the beginning of the markings, then you are able to get a more accurate measurement. If the blueprint says 1/4, then use the 1/4 side of the scale.Īfter you have determined which scale to use, you are ready for the next step. Every eighth inch equals one foot on the blueprint. This means that every mark is 1/8 inch apart. If it is 1/8=1', then use the side of the tape or ruler that is marked 1/8. There is also a small block that says what scale the drawing was made in. ![]() It has the page number, if multiple pages are involved, and the version number. It also has areas for the signatures of those who approved the drawing, and the dates they approved it. This area contains the following: title of the drawing, the owner or customer of the project, pertinent ID numbers, names of the designer, drawer, and the supervisors. It is located in the bottom right corner. THOUGH THE SDSAB DOES ITS BEST, THESE COLUMNS ARE EDITED BY ED ZOTTI, NOT CECIL, SO ACCURACYWISE YOU'D BETTER KEEP YOUR FINGERS CROSSED.To operate an architect scale ruler, first look at the Title Block on the blueprint. Send questions to Cecil via REPORTS ARE WRITTEN BY THE STRAIGHT DOPE SCIENCE ADVISORY BOARD, CECIL'S ONLINE AUXILIARY. Not that you need to remember that very often, but who knows, maybe this is all the impetus you need to go out and get that contractor’s license. Those little diamonds are there so you can remember quickly what one-fifth of 96 is. They take advantage of its strength by using fewer joists or studs where codes allow. Engineered Lumber is usually specified by the architects and engineers who draw the plans. If you multiply these dimensions by 8, 6, 5 and 4, respectively, you’ll notice that you come up with 96in., the length of the panels that will be used for sub-flooring or sheathing. Span tables for these lumber products provide ratings for spacing of 12in., 16in., 19-3/16in., and 24in. Several wood product manufacturers offer Engineered Lumber as a substitute for conventional lumber. The black diamond marks every 19.2" on our tape rule blades are for spacing Engineered Lumber joists and studs.
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