# Harold's purple crayon rendered in haptics: Large-stroke, handheld ballpoint force feedback

> Research article (2018 IEEE Haptics Symposium (HAPTICS), 2018) · cited 12× · AI/ML

**Wikidata**: [openalex:W2803094060](https://www.wikidata.org/wiki/openalex:W2803094060)  
**Source**: https://4ort.xyz/entity/harold-s-purple-crayon-rendered-in-haptics-large-stroke-handheld-ballpoint-force-feedback