Hatching
On sections and sectional views solid area should be hatched to indicate this fact. Hatching is drawn with a thin continuous line, equally spaced (preferably about 4mm apart, though never less than 1mm) and preferably at an angle of 45 degrees.
Hatching a single object
When you are hatching an object, but the objects has areas that are separated, all areas of the object should be hatched in the same direction and with the same spacing.
Hatching Adjacent objects
When hatching assembled parts, the direction of the hatching should ideally be reversed on adjacent parts. If more than two parts are adjacent, then the hatching should be staggered to emphasise the fact that these parts are separate.
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Reverse hatching |
Staggered Hatching |
Hatching thin materials
Sometimes, it is difficult to hatch very thin sections. To emphasise solid wall the walls can be filled in. This should only be used when the wall thickness size is less than 1mm
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Hatching large areas
When hatching large areas in order to aid readabilty, the hatching can be limited to the area near the edges of the part.
Page last updated by Paul Hudson
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