Hello sir, Limits in SPI can vary a lot, also depending on finishing of the pcb. For example 170% volume on an IC (assuming is fine pitch) can be okay for ENIG, but very bad if HASL. For are I would recommend that you use either 50-130, or 60-135 max, because if area is 150, maybe you will be in trouble. So what i usually do: 1. Set up general values based on finishing, pcb, component types. Area 50-135, volume 50-185, height 50-185, position 0.16mm 2. After a trial run of 10 panels i would change settings and group components by type if necessary. Fine pitch IC i change setting for volume to 60-150, and height maybe 60-160 (depending in each situation). It is very important to see in which parameter you have defects and then adjust the limits according that. it is not an easy job, but it gets more easy in time.
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