docs / constraints / Perpendicular
Perpendicular
Id prefix: PERP · Elements: exactly two · Selection filter: FACE / EDGE · Entry 7 of 16 in the panel's + dropdown
Perpendicular holds two direction-bearing elements at a right angle — Parallel's twin, orientation-only for the same reason, and with no parameters at all: a right angle is not a number you set.
Parameters
| Parameter | ||
|---|---|---|
elements | two direction-bearing elements (face / edge) | The pair to hold square. |
Walkthrough

The plate's top face and the pin's end cap. Holding their normals at a right angle lays the pin across the plate rather than standing it up, and — as with Parallel — the translation comes out exactly as it started.
Offered for two elements on two distinct components — see where constraints are offered.