Edge distance >= 2 D and pitch >= 3 D of regular equal-hole patterns (if they take rivets or inserts).
No standards reference is assigned to this check. The scope described above applies.
Sheet metal · CC0-1.0
Model example
Four Ø4.1 mm holes (blind-rivet drill size) sit in a row; the first hole center is only 4.2 mm from the short edge, about 1 x the hole diameter.
Dimensions (approx.): 100 × 40 × 2 mm
PRU-105 should warn, worded as: if these holes take rivets. The row is also reported as a blind-rivet candidate.
Finding expected
Sheet metal · CC0-1.0
Model example
The same four Ø4.1 mm holes, with the first hole center 15 mm from the short edge and a 20 mm center-to-center pitch.
Dimensions (approx.): 100 × 40 × 2 mm
PRU-105 must stay silent: edge distance and pitch are both generous.
No finding expected
Sheet metal · CC0-1.0
Model example
Two Ø3.1 mm holes (blind-rivet drill size) sit 6 mm apart centre to centre, about 2 x the hole diameter; 3 x D is the usual minimum pitch.
Dimensions (approx.): 100 × 40 × 2 mm
PRU-105 should warn, worded as: if these holes take rivets, that the 6 mm pitch is below 3 x 3.1 mm and nothing else.
Finding expected
Sheet metal · CC0-1.0
Model example
The same two holes at a 15 mm pitch.
Dimensions (approx.): 100 × 40 × 2 mm
PRU-105 must stay silent: the 15 mm pitch is above 3 x D.
No finding expected