Orthographic to Isometric

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Orthographic to Isometric
Coatbridge High School
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Drawing the Plan and Elevations
Here are three views of an object. Seeing this
shape in 3D is not easy, this tutorial aims to
help you with this.
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Drawing a crate
The first step is to draw a box or crate to the
same dimensions as the outside of the object. If
you forget this then you will get into difficulty.
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Cutting out parts of the crate
The obvious parts of the crate that need to be
removed are dealt with first. Look at the
Elevation, the top left hand corner is empty
space and can be removed from the crate
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Cutting out parts of the crate
The first part to be removed has now gone.
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Removing more parts from the crate
The Plan view has a part that may be removed.
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Removing more parts from the crate
This part has now been removed.
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Removing more parts from the crate
The Plan view has another part that may be
removed.
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Removing more parts from the crate
The final part has now been removed
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Drawing the Plan
This is the Plan view of the simulation
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Drawing the Elevation
This is the Elevation view of the simulation, the
hidden line is drawn as a yellow line.
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Drawing the End Elevation
This is the End Elevation view of the simulation,
the hidden lines are drawn as yellow lines.
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The Isometric Projection
This is the Isometric Projection, all
measurements are taken from the Orthographic
Drawing and lines are drawn at 30 from the
horizontal using a set square. It gives the
effect of 3D but without perspective so
measurements taken from it are accurate.
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The Completed Drawing