QCAD - The Open Source 2D CADきゃど. QCAD is a cross-platform CADきゃど solution for Windows, macOS and Linux. It supports the DXF format and optionally the DWG format (through a proprietary plugin).

高こう效こう的てき板材いたざい切きり割わり优化系けい统是专门针对裁板たちいた开料而设计的排はい样优化か系けい统，解かい决企业裁板ばん开料问题，能のう自じ动完成かんせい零れい件けん优化排はい样和规划下か料りょう，最大さいだい限度げんど节约人工じんこう、加か快かい生なま产周期き和わ提ひさげ高だか材料ざいりょう利用りよう率りつ。

Python 2D parametric DXF rendering CADきゃど engine

QCAD plugins for laser cutting

My various QCad script extensions.

DXF CADきゃど files and templates that I used to use

QCAD drawings

A desk project I made using Alibre Atom3D and QCADきゃど