How Frame Straightening Works: Pulling and Measuring
A frame machine pulls, but it usually does not measure, and measuring is what tells you where the metal goes and when to stop. This guide walks the repair in order: how damage is measured in three planes against centerline and datum, how anchoring divides pulling force across clamps, and why technicians deliberately overpull to beat springback. It also covers the modern limit that changes everything, which is that boron and ultra-high-strength steel are replaced rather than straightened.