INNOVATION IN THE MODERN EDUCATION SYSTEM
40
The study and implementation of clear images (axonometric
projections and technical drawings) must be accompanied by the study of
the system of rectangular projections and the implementation of drawings.
Because vivid imagery is the main basis for teaching students to make third
projection, and with it, students can significantly perform third projection in
two ways.
In the school drawing course, students learn two types of axonometric
projections - curvilinear angular dimetric projections and rectangular
isometric projections.
It is known that in the areas of in-depth study of engineering graphics in
professional colleges, special lectures and practical classes on the topic of
axonometric projections are held. In this way, the deep theoretical
foundations of these imaging techniques are explored. In view of the
foregoing, let us dwell on the methodology for studying the topic. Analyzing
axonometric and complex diagrams in a class with students will make it
easier for students to master the topic and understand the deep
connections between complex and axonometric images.
To create a curved frontal dimetric projection with a model, the
leading edge of the object is parallel to the projection plane, and the
projected rays are directed at an acute angle to the plane. In this case, the
front face is projected onto the plane in real size, and the dimensions of the
side and top faces change (Fig. 67). If the edges of an object are placed in
space at an angle to the plane and projected by rays perpendicular to the
plane, then an isometric projection of the plane is formed (Fig.).
Similar posters can be used to explain the topic. This explains to
students that axonometric projections can be made on the axis at any
angle, and it will be useful to jointly analyze a poster depicting axonometric
projections defined by DST.
At the same time, it is necessary to draw the attention of students to the
study of which type of axonometric projection to choose, taking into
account the shape of the part.
figs. Rectangular isometric shape. Methods for constructing
projections of axonometric axes
On the topic of axonometric projections, it is important to teach
students how to draw axes correctly and how to draw images of plane
figures correctly. This is due to the fact that knowledge of the techniques for
performing axonometric projections of flat geometric figures is the basis for
performing axonometric projections of geometric objects, models and
details. Therefore, the teacher should pay special attention to the correct
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