Measuring projector straightness tolerance:

Straightness tolerance is the real line to an ideal straight line allows for variation, shape error of plane or space limit line, the tolerance zone according to different situation are the following different situations.

1, in a given plane

In a given plane, the tolerance zone is the distance between the tolerance value t two planar region. The measured surface and the line must be located parallel to the projection plane and the distance of the tolerance value of two parallel straight lines in 0.1mm.

2, in a given direction

In a given direction, straightness tolerance zone is the distance to t tolerance is worth between two parallel to the plane of the region. Ridge must be located in the direction of the arrow distance tolerance value of two parallel planes within 0.02. Ridge must be located in the direction of the arrow distance tolerance value of two parallel planes in 0.02mm.

3, in any direction

Definition of the tolerance zone: an arbitrary direction straightness tolerance values with " cents ", the tolerance zone is diameter tolerance t cylindrical surface area.

The measured cylinder of diameter d axis must be located in the diameter tolerance of cylindrical surface in 0.04mm.