Each draftsman is familiar with an object with which it is easy to draw parallel lines regardless of their angle of inclination or direction. This irreplaceable thing is called a T-square, which creates additional conveniences during hand-drawing on a specialized wooden board.
The appearance of the tire and its distinguishing features
The drawer for drawing is a kind of ruler, the shape of which resembles the letter T in its silhouette. Both in the distant past and in the present, this ruler is made mainly of high-quality plastic or wood, which satisfy all the requirements of draftsmen, the main among them being the ideality of lines and the ability to not stain paper.
A T-square made of wood is a long ruler with a perfectly even surface, on one side it is cut into a short crossbar at a right angle, called the last head. The crosspiece is two small strips that are neatly fastened together with a screw. The bar, which is in a fixed position, acts as a guide during the execution of the work of the draftsman.
Why do you need a range-raiser and the basic requirements for it?
Tereshina is necessary preferably for drawing horizontal lines and much less often for inclined and vertical lines. For example, the inertial variety of such rulers is made of transparent materials, on the front of which there is a scale for drawing lines, on the side and back there is a grid for measuring angles. That is, the drawer for drawing performs the function of a protractor too.
The most ideal material for making such rulers is wood, a pear is ideal.
A more sophisticated type of treadmill is a lever one, which due to its convenience only accelerates the drawing process. Using it is very simple: you need to put the device on the board, pressing the head to the edge on the left. It is necessary to move the tire with the left hand, holding it by the head, with the other hand by the triangle.
In addition to these common varieties, improved and modernized devices are used, the details of which are made of glass and metal or wood.
Use and storage
T-square for drawing - this is one of the main guarantees of the completed scheme and its quality. Indeed, the correctness, accuracy and quality of the drawing itself depends on the condition of all the tools. Therefore, after completing the work, each time it is necessary to wipe the tire and put it in an optimal place, inaccessible to moisture. Thanks to this care, wood and metal will have a pristine and perfect look.
When used correctly, the drawing trowel must be in a comfortable sliding position so that nothing prevents its free movement.