Purpose |
When the board is conveyed through the SMT process, there are sensors set at a certain depth beside the conveyors, which are used to sense when the board has finished passing through the process. A gap in the profile will mislead these sensors. |
Function |
Lists the gaps in the step profile, taken along the direction of the SMT process flow (represented by the .smt_direction_top step attribute). It considers the straight line parallel to the SMT process flow direction, close to the edge of the profile (the ERF variable conveyor_sensor_depth specifies how far inwards from the profile edge this line passes), and lists all gaps along this line. A gap is defined as any segment of the line, within the rectangle of the profile's limits, which is outside the step profile itself. |
Activation |
After `Gaps' test is selected. |