The ancient Egyptians are known to have used wooden corner rulers. The tools used for manual technical drawing have been displaced by the advent of computer-aided drawing, drafting and design ( CADD). Other auxiliary tools were used for special drawing purposes or for functions related to the preparation and revision of drawings. Tools such as templates and lettering guides assisted in the drawing of repetitive elements such as circles, ellipses, schematic symbols and text. A drawing board was used to hold the drawing media in place later boards included drafting machines that sped the layout of straight lines and angles. The compass is used to draw arcs and circles. Various scales and the protractor are used to measure the lengths of lines and angles, allowing accurate scale drawing to be carried out. Other tools such as straight edges, assist the operator in drawing straight lines, or assist the operator in drawing complicated shapes repeatedly. Tools such as pens and pencils mark the drawing medium. Select the zoom button at the top of the menu.Tools and instruments used for accurate and precise manual draftingĭrafting tools may be used for measurement and layout of drawings, or to improve the consistency and speed of creation of standard drawing elements.To get something back that you deleted, select the Redo button next to the Undo button.If you make a mistake, select the Undo button to remove the most recent ink.Click the accept or cancel button to confirm.Select the ruler or protractor again to remove it.Move the ruler or protractor around the image.Select the Ruler button at the top of the menu.Select erase all ink to remove all ink that is on the image.Click and hold the cursor and move it over the ink that you want to be removed.Select the eraser utensil at the top of the menu bar.Click on the sharpie again to open up its customization menu, this allows you to change the sharpie's color and size. This allows you to highlight areas or words that are important.Ģ.
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