3D model of a math drawing compass. A math compass is a tool used to draw geometric figures based on angles and degrees.The compass of this model was specially made for 3D printing, and particularly for architectural or decoration design uses. For this reason, the model is prepared to be printed at a size no less than 30 centimeters in length.The STL model consists of three separate files, each corresponding to a section of the compass so that it can be printed on printers with small print beds.It is suggested that the compass body is printed with an infill of at least 50 percent, and at least 80 percent for the bolts.