### Óvalo dados sus dos ejes

We are going to draw an oval given the length of its two axis, which can be seen at the top of the screen. Line segment “AB” and “CD”. The first step we are going to do is to situate this two axis. So to start we will draw a horizontal straight line in the middle of our screen, and mark a point “A” on the left side of this line, as can be seen here. Now we are going to transport our larger axis “AB” onto our horizontal line. Setting our compass to the length of axis “AB” we will now transport it onto our horizontal line, setting our compass on “A” and scribing point “B” on the horizontal line. So now that we have the horizontal axis “AB” we are going to work out its perpendicular bisector because this is where our second smaller axis “CD” will be located. To draw this perpendicular bisector, firstly we must draw two arcs which are centered on both ends of our axis “AB”, as can be seen in the video. These arcs are going to have the same radius, the only condition is that the lengths of the radius must be longer than half the length of the axis “AB”. These arcs intersect at two points which we will join to obtain our perpendicular bisector. This perpendicular bisector cuts the axis “AB” at a point which we will call “0”. So the next step is to work out the perpendicular bisector of the smaller axis “CD” so as to work out its midpoint. As the smaller axis “CD” is located on the top of our screen we are going to use a different method to work out its perpendicular bisector because we don’t have enough space to use our previous method. We are going to draw four arcs, with two different radiuses, one radius for the first two arcs and a slightly shorter radius for the second two arcs. The first two radiuses will intersect each other at a point while the second two radiuses will intersect each other at a different point. So now we join these two points with a line and this line will be the perpendicular bisector. This perpendicular bisector cuts the axis “CD” in half at the midpoint “M”. Using our compass, set on point “M” to point “D” we will transport this length on to the vertical bisector, above and below the midpoint “O”, as can be seen here in the video. Now I have the two axises of our oval located correctly. Next step is, with our compass centered on “O”, with a radius “OA” we will scribe an arc to the right until it cuts the vertical bisector and we will call this point “A1”. So now we join point “A” to point “C”. Now, with our compass centered on “C” with a radius “C-A1” we are going to scribe an arc to the left until it cuts our previously drawn line “AC” at a point we will call “A2”. The next step is to calculate the perpendicular bisector of the line-segment “A-A2”. To do this we use the first method drawing two intersecting arcs above and below the line segment “A-A2”, as can be seen in the video. We try to keep these arcs as small as possible so as not to clutter the drawing. So now we draw the perpendicular bisector which will intersect our two axis at points O1 and O2 as can be seen here in the video. These points will be two centers of our oval. So now we must obtain the mirror images of these two points. To do this, with the compass set on the origin “O” and with radius “O-O1” we scribe an arc to the right to cuts our horizontal axis “AB”. Now with our compass set on the origin “O” and radius “O-O2” we scribe an arc to the left until we cut our vertical axis “CD”. These two new points we will call “O3” and “O4” as can be seen here in the video. So now we are going to join point “O2” to point “O3” and we will prolongate this line as can be seen in the video. We will repeat this process by joining points “O4” to “O1” and prolongating this line also as can be seen here in the video. And finally we join points “O4” to “O3” again prolongating this line as can be seen in the video. So the last step is to draw the four arcs that make up our oval. With compass centered on point “O1” and radius “O1-A” we will draw the left side of our oval as can be seen here in the video from until it cuts our previously drawn prolongations. As you can see I’m going to use a thicker line to draw these arcs. So now, with the compass centered on point O3, and the same radius “O1-A” we will draw another arc which will be the right side of our oval as can be seen here in the video. So the next step we will draw the third arc, with our compass centered on point “O2”. And finally, with our compass centered on point “O4”, we will finish drawing our oval. Here you have the oval made up of four independent arcs with four independent centre points. The contact points of these arcs are aligned with their centers and because of that there are tangent points. We will assign the letter “T” for tangent point to these four points.

ta pa la chkraaa

muy util (:

Muchas gracias eres el pto amo

me volvi un culo no entiendi nada de como sacaste las medidas por ese programa raro

eres el puto amo

me has salvado el culo! gracias! Toma mi like!

Salvador! XD

its so good…

Macho me estas salvando semestres anque suspenga

Me salvas la vida, mi profesor de dibujo técnico le puso un 4 a Piccaso, asique imagínate

Muchas gracias, hace usted una gran labor. Saludos desde Murcia.

Explicas cómo el puto culo

de cuantos centímetros son las dos rectas

me podrias dar las medidas exactas xfa

le nto

Eres un genio del mundillo si no fuera por ti yo suspendería plástica // dibujo técnico

Honestamente se me hizo un embrollo para poder sacar el ovalo. Quizá para muchos fue fácil, pero para mi creo que pudo haber utilizado un método más practico que este. Gracias.

No acostumbro a comentar los vídeos, pero este me ayudo muchísimo, soy estudiante de Ing Civil y estuve buscando por bastante tiempo como hacer el Ovalo dentro de un rectángulo, que es lo mismo que muestras aquí.

Gracias Amigo!

Nose rick párese falso

Para lo que explica mi profesor de dibujo tecnico en 2° de Bachillerato, mejor que te contraten a tí

Como puedo hacer un ovalo de 5.60 metros de largo x 4.00 de ancho gracias

No entiendo las medidas.

hola soy yo roberto el de la pala

Hola soy jesus el de la pala

alguien quiere ser mi amigo estoy muy solo

joan estas fatal

joan vas estar solo para toda tu vida

joan lo dijo jesus el de la pala

Tenia mal los apuntes y me as ayudado mucho grax

él mejor ovoide que he visto en milenios ojala te viera para k me metas tus ovoides

que es un ovalo invertido?

Tu voz se parece a la de Berlin de (La casa de papel)

10/10 salvavidas

Muchísimas gracias

Muchas gracias! Tus vídeos son de gran ayuda, en clase no entiendo casi nada, ya que la profesora dice q no es una radio y no puede repetir lo mismo mil veces solo para mi; en cambio, en un vídeo puedo repetirlo las veces que quiera hasta que me entere.

la madre que te pario que voz que tienes llevo 2 min de video y ya me he dormido, ya se que ver para coger el sueño gracias <3

No tiene sentido el paso en el que coges la medida de C-D y empiezas a hacer mediatrices partiendo de la recta C-D.

Grande arturito

Gran ayuda, muchas gracias

Estoy empezando dibujo técnico y me ayudas mucho gracias

boi a guitar la tocarra

Muchísimas gracias por tus vídeos. Nos son de gran ayuda.

Sé que se escucha tonto pero sabes si se puede hacer un dodecagono en un óvalo

Muchas gracias Arturo!❤️

arturo joder eres un maquina

si saco la ingenieria telo dedico en mi discurso

4:23 no entiendo que radio uso allí

Gracias, me gustaria que me expliques curvas tecnicas segunda parte, como construir cicloides, epicicloides, hipocicloides, cardioides, lumacas de pascal… Etc