STEP-LLM: Generating CAD STEP Models from Natural Language with Large Language Models. - Xiangyu Shi; Junyang Ding; Xu Zhao; Sinong Zhan; Payal Mohapatra; Daniel Quispe; Kojo Welbeck; Jian Cao; Wei Chen 041; Ping Guo; Qi Zhu 002 (CoRR, 2026)