PDF

CADFit: Precise Mesh-to-CAD Program Generation with Hybrid Optimization

Ghadi Nehme, Eamon Whalen

2026encadmeshoptimizationengineeringgeometry

Abstract

Language:

Despite advances in CAD technology, recovering parametric CAD construction sequences from geometric inputs like meshes remains a challenge in design and manufacturing. This paper introduces CADFit, a hybrid optimization-based framework that reconstructs complex, editable CAD sequences from meshes by incrementally fitting parametric operations and validating with geometric feedback. CADFit differentiates itself by performing an Intersection-over-Union (IoU)-driven optimization over structured CAD programs and incorporates various operations such as extrusions and fillets. Through extensive experiments with benchmark datasets, CADFit is shown to outperform existing mesh-to-CAD methods in both volumetric Intersection-over-Union and Chamfer Distance metrics, while significantly lowering the Invalid Ratio for reconstructed programs, especially with complex designs. Moreover, a multimodal pipeline that allows complete reconstruction from images is proposed, merging image-based geometry reconstruction with CADFit's capabilities. By facilitating the accurate reconstruction of higher-complexity CAD models, this work underlines a significant step towards generating richer datasets and enhances future learning-based approaches in CAD reverse engineering.

Download

Cite This Work

@article{cf1d6072-b40b-4fd2-ad6c-e76920fa7a2a,
  title={CADFit: Precise Mesh-to-CAD Program Generation with Hybrid Optimization},
  author={Ghadi Nehme and Eamon Whalen},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - CADFit: Precise Mesh-to-CAD Program Generation with Hybrid Optimization
AU  - Ghadi Nehme
AU  - Eamon Whalen
PY  - 2026
LA  - en
ER  -

Similar Items

Industrial Furnaces W. Trinks, M. H. Mawhinney, R. A. Shannon, R. J. Reed, J. R. ( WeLib.org )

2026enPDF

Fundamentals of Dimensional Analysis Theory and Alberto N. Conejo (auth.) ( WeLib.org )

2026enPDF

Coordinated secondary frequency regulation of thermal power units and feeder loads under high renewable penetration: Joint economy-performance optimization and distribution network PCC power tracking

Fengming Shi, Siyang Liao

Large-scale integration of high-penetration renewables aggravates net-load fluctuations and brings uncertainties to secondary frequency-regulation dem

2027enPDF

Constructing reliable clean energy facility network under ambiguous distribution information

Qiansa Wang, Yanjiao Wang

In the context of the transition from clean energy to sustainable development, as an emerging low-carbon energy carrier, hydrogen is of crucial import

2025enPDF

Bridging the climate to energy data gap: simulated annealing for representative climate year selection

Bram van Duinen, Karin van der Wiel

Energy system models are increasingly dependent on representative climate input. Yet, a fundamental mismatch persists between the hundreds of simulate

2026enPDF

Metallurgical Plant Design and Operating Strategies

P Card, J Canterford

This document presents a collection of papers from the METPLANT 2011 conference focusing on metallurgical plant design and operating strategies. The o

2011enPDF