Herramientas y trazados fundamentales de dibujo técnico - Contenido educativo
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Introducción a las herramientas de dibujo técnico: compás, lápices, juego de escuadra y cartabón, transportador. Usos y aplicaciones.
Hello everyone! This is Alicja. Welcome to my home art studio. Our starring guest today is...
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Hello fellow artists!
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...Matsula Bosbok. And today we will be learning about technical drawing tools and how to use them.
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Now, technical drawing is a very precise way of drawing.
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It is used to draw plans, instructions.
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It is standardized, which means it follows certain established rules.
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To do it, we need some special tools like this.
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A hard graphic pencil.
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These pencils are labeled with an H and a number.
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They draw lighter and are easier to erase.
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The higher the number, the harder the pencil.
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A bow compass.
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This tool is used for drawing arcs and circles.
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If you don't have one of your own,
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you can make a paper one, like this.
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Graduated ruler.
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This is used to measure distances
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and draw straight lines.
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Triangular set squares. These two triangles work together. This is the 45 degree set square,
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que es cuadra, and this is the 60 degree set square, cartabón. They are both right angle
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triangles, which means they have a 90 degree angle here and here. Besides, this one has
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to 45 degree angles here and here and this one has one 60 degree angle and one 30 degree angle
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if you need it i recommend you write down the degrees of each angle so you can remember them
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if you don't have these at home you can make some paper ones
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The protractor. This tool is used to measure, transfer and draw angles.
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And of course we will be still using a rubber to fix mistakes and a pencil sharpener.
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But how do we use the tools?
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Good question, Spock. Let's see.
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The bow carcass. The point should be a bit longer than the graphite lead. If it isn't, adjust it, like this.
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Put the point where the centre of the circle is going to be, vertical, and press gently but firmly. The paper doesn't feel pink.
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If you need it, put some book or more paper underneath.
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Adjust the measure of the bow compass with both hands.
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To draw the circle, hold the tip between your index finger and thumb, trying to turn it
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as gently as possible.
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Think of a ballerina dancing.
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The set squares.
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set squares can be used to draw angles using them as templates with the 45
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degree set square we can draw 45 degrees 90 degrees and 135 degrees with the 60
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degrees set square we can draw 30 degrees 60 degrees 90 degrees 120
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degrees and 150 degrees if we combine them we can draw 15 degrees 75 degrees 105 degrees and 165
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degrees these triangles can also be used to draw parallel and perpendicular lines parallel lines
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are straight lines that never meet and always skip the same distance between
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them. Perpendicular lines are straight lines that cross one another creating
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four 90-degree angles. To draw parallel lines, place a 45-set-square
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longest side, the hypotenuse, just over the first line. Then place a 60-degree
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set square hypotenuse beside and hold it very firm. Now you can slide the 45 degree set square
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and draw as many parallel lines as you want. This also works with the triangles in different
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positions or with a triangle and a ruler as long as you can slide one of them.
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To draw the vernacular lines, place the 45° Z-square just as before, and then the 60° Z-square.
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Now this is the tough part. Rotate the 45° Z-square so that it looks like this, like an arrow pointing to the 60° Z-square.
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square now the hypotenuse the longest side of the 45 degree set square is perpendicular to the first
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line and we can slide it to draw as many perpendicular lines as we want it doesn't
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matter the position of the lines you are always going to rotate the rollers like this
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The protractor. Let's use the protractor for measuring an angle.
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Your protractor will have a little point or T or hole in this spot.
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Place that over the vertex of the angle.
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Now, depending on where is the angle growing to, we will measure clockwise to the right
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or counterclockwise to the left.
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this angle is growing to the right so i'm going to measure it clockwise in this case
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my angle is growing to the left so i'm going to measure it counterclockwise
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i place my point over the vertex there i place my point over the vertex
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There! It's your turn!
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Fascinating! What are we going to do now?
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We are making a flower with a bow compass and a composition with parallel and perpendicular lines.
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And that is all for today!
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Well, that was quite fun!
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Well, thank you Spock. I hope you had fun too and I will see you again soon. Take care and bye-bye.
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- Idioma/s:
- Idioma/s subtítulos:
-
- Autor/es:
- Alicia Gastesi Carreras
- Subido por:
- Alicia G.
- Licencia:
- Todos los derechos reservados
- Visualizaciones:
- 6
- Fecha:
- 17 de agosto de 2023 - 19:26
- Visibilidad:
- Clave
- Centro:
- CPR INF-PRI-SEC ENRIQUETA AYMER
- Duración:
- 11′ 17″
- Relación de aspecto:
- 1.47:1
- Resolución:
- 768x524 píxeles
- Tamaño:
- 248.60 MBytes
