OpenSCAD software ce don ƙirƙirar samfuran CAD 3D masu ƙarfi. Yana da software na kyauta kuma yana samuwa ga Linux / UNIX, Windows da Mac OS X. Ba kamar yawancin software na kyauta don ƙirƙirar nau'in 3D (kamar Blender) ba ya mayar da hankali ga abubuwan fasaha na ƙirar 3D amma a maimakon haka a kan abubuwan CAD. Don haka yana iya zama aikace-aikacen da kuke nema lokacin da kuke shirin ƙirƙirar ƙirar 3D na sassa na inji amma tabbas tabbas ba shine abin da kuke nema ba lokacin da kuka fi sha'awar ƙirƙirar fina-finai masu rarrafe na kwamfuta.

OpenSCAD ba abin ƙira ne mai mu'amala ba. Maimakon haka wani abu ne kamar 3D-compiler wanda ke karantawa a cikin fayil ɗin rubutun da ke bayyana abu kuma ya ba da samfurin 3D daga wannan fayil ɗin rubutun. Wannan yana ba ku (mai zanen) cikakken iko akan tsarin ƙirar kuma yana ba ku damar canza kowane mataki a cikin tsarin ƙirar ko yin ƙira waɗanda aka ayyana su ta hanyar sigogi masu daidaitawa.

OpenSCAD yana ba da manyan dabarun ƙirar ƙira guda biyu: Na farko akwai ingantacciyar lissafi mai ƙarfi (aka CSG) na biyu kuma akwai ƙayyadaddun ƙayyadaddun 2D. Ana iya amfani da fayilolin Autocad DXF azaman tsarin musayar bayanai don irin wannan fassarori na 2D. Baya ga hanyoyin 2D don extrusion kuma yana yiwuwa a karanta sigogin ƙira daga fayilolin DXF. Bayan fayilolin DXF OpenSCAD na iya karantawa da ƙirƙirar ƙirar 3D a cikin tsarin fayil na STL da KASHE.