As a consequence there may be a little too much movement between the two parts and the accuracy needs to be checked. The numbered lines represent full logs, 16 feet long, while the dashes without numbers between the numerals represent 8-feet-long half logs. Because I can’t find the brands anymore of the ones I’ve got I can’t vouch for quality. Find the corresponding scale on your ruler. Be careful when selecting the scale on the ruler, there are two scales on each edge. Mentally note this number and be sure to 'round down' even if you are close to the next number. In measuring something, you line up the nearest foot mark on the right and then read the remaining inches on the left. If the distance falls exactly on a line of the ruler, that is the measure in metres. G. Roland, Professor, Austin. One mistake I sometimes used to make with the protractor was placing the flat bottom edge of the plastic against the intended point of origin of the angle when it should be the centre of the small semi-circle above it. Join our mailing list to receive the latest news and early access to our classes. The photo below (from Wickes) shows a so-called combination square. Unfortunately there’s no transparent sheet plastic I know of that can be cut as smoothly and effortlessly by hand as the foamed Pvc. I usually spraymount this onto a card or plastic strip so that it will last. Oval templates differ, some featuring more ‘pointed’ or thin ovals and some more ‘fat’ or rounded like this one. Find the value at the inner edge of your caliper's jaws. How To Read A 18 Scale Ruler/page/2 - The Best Way to Cut Your Designs. A scale ruler is a tool for measuring lengths and transferring measurements at a fixed ratio of length; two common examples are an architect's scale and engineer's scale. If you want to read more about working with scale rulers and generally getting to grips with the concept of scale go to the article ‘Working in scale’ in the Methods section. If the distance falls exactly on a line of the ruler, that is the measure in feet. If you want to draw a line to indicate a window that is 4.5 feet long, begin it at the halfway point of the smaller gradations and then continue out until you reach the “4” mark. 2. Then there is the other type for ‘smaller’ scales used in architecture or landscape mapping, such as 1:100 or 1:2500, and these will also have their separate Imperial equivalents. The figures are large, crisp, bold and black for ease of reading. To retrieve the measurements from the blueprint, you need to use a specialty ruler referred to as a "scale … Reading a ruler starts with understanding what all the ticks mean. Read on to find out how you can use this important device in any project you undertake. But on the other hand this doesn’t ‘serve’ completely, because it’s rare to find a normal Imperial ruler where the inches are divided into twelfths .. and in any case it’s no help at all if you want to measure in metric! You can print a lot of your projects with How To Read A 18 Scale Ruler/page/4. You can print a lot of your projects with How To Read A 18 Scale Ruler. HOW TO READ A SCALE RULER. An example of what I mean by this is shown below. Read the scale value. Read the number of the scale that is close to the ending scale of what you are trying to measure. If you’re American, this is the measurement you probably know better than centimeters, which are sometimes included on your standard 12-inch, or 1-foot, ruler (we’ll go over how to read a ruler in cm in the next section). Step 7 The quality of compasses is all in the machining of the joints, the cheaper ones possibly becoming looser in time and this is not something that one can check online. 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