qcad: QCad (Qt3 CAD) qcad: qcad: With QCad you can create technical drawings such as plans for qcad: buildings, interiors or mechanical parts. QCad works under Linux qcad: Unix Systems, Mac OS X and Windows. The source code of the QCad qcad: community edition is released under the GPL (Open Source). qcad: qcad: qcad: qcad: qcad: