# Design and optimization of a general planar zero free length spring

> Research article (Mechanism and Machine Theory, 2017) · cited 18× · AI/ML

**Wikidata**: [openalex:W2735273621](https://www.wikidata.org/wiki/openalex:W2735273621)  
**Source**: https://4ort.xyz/entity/design-and-optimization-of-a-general-planar-zero-free-length-spring