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GUIA USO DE LAS ESCUADRAS [PDF] —> Gratis – IDEAS BRILLANTES

GUIA USO DE LAS ESCUADRAS [PDF] —> Gratis


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GUIA USO DE LA ESCUADRA EN HERRERIA

¿Qué es una Escuadra?

Una escuadra, es una plantilla con forma de triángulo rectángulo isósceles, con un ángulo de 90º y dos de 45º, utilizada generalmente, en dibujo técnico, razón por la cual pocas veces contienen la escala gráfica; exceptuando cuando se conciben como herramienta de medición.

Escuadra de Plástico utilizada en Dibujo Técnico

Ésta puede ser de diferentes tamaños y colores o tener biseles en los cantos que permitan ser usadas con rapidógrafo; además, es usualmente empleada junto a un cartabón o una regla con la finalidad de trazar líneas paralelas y perpendiculares.

Un juego de escuadras comúnmente contiene tiene escuadras con los ángulos de 60° y 30° y escuadras con los ángulos de 45°.

¿Quién inventó la Escuadra?

Respecto a la aparición de la escuadra moderna, que conocemos como escuadra combinada, es atribuida a Laroy Starrett (1887).

La invención de la escuadra se le acuñó en principo al trabajo de los artesanos, quienes únicamente a fuerza de mucha aplicación y dificultades consiguen construirla, hacia el año 530 a.C. aproximadamente.

Sin embargo, se contempla la aparición de la escuadra entre la comunidad egipcia mucho tiempo después.

¿Cuándo se inventó la Escuadra?

La aparición de la escuadra como instrumento de medición fue para el 530 A.C. No obstante, se menciona que los egipcios mucho antes que Pitágoras, hacían uso de estos instrumentos, las referencias históricas destacan que ya los egipcios aplicaban conocimientos de índole matemático y geométrico utilizando este instrumento de medición.

Pero la historia no se detuvo allí, La aparición de lo que hoy en día conocemos como Escuadra combinada se encuentra referenciada para 1887, uno de los más prácticos y versátiles inventos en herramientas en todo el mundo como recurso básico para todo constructor y profesional del diseño gráfico.

Partes de la Escuadra

La escuadra como una plantilla con forma de triángulo rectángulo isósceles conformada por ángulos, vértices y una escala de medición:

  • Angulo

Se refiere al segmento indefinido de un plano limitado por dos líneas que parten de un mismo punto o por dos planos que parten de una misma línea y cuya abertura puede medirse en grados. De acuerdo con la forma de triángulo rectángulo isósceles que posee la escuadra, se encuentra conformada por un ángulo de 90º y dos de 45º.

  • Vértice

La noción de vértice deriva del vocablo latino “vertex”. De acuerdo con la perspectiva de la geometría, el vértice es el nombre que recibe el punto que marca la unión entre aquellos segmentos que originan un ángulo; es decir, donde se fusiona un mínimo de tres planos como la cúspide de un cono o una pirámide, al igual que el punto máximo o mínimo de una línea curva.

  • Escala

Este término proviene del latín “scala”, y se refiere a la sucesión ordenada de valores de una misma cualidad, en el caso de la escuadra de medición, los valores de medición usualmente en términos de metros (milímetros, centímetros, metros), y se encuentra representado en un costado de la escuadra, numerada en milímetros para así poder medir la dimensión de las líneas a trazar.

DESCARGA AQUI: GUIA USO DE LA ESCUADRA

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