Any 3D software can be used to build the models - BUT the models must be solid models NOT surfaces, since a surface has no volume. Please pay attention to the resolution or faceting of the model, since the prototype will reflect exactly what is exported from the 3D software. All parts in the model have to be connected or joined to form one solid for each item, exactly as in real life. All dimensions have to be more than 1,9mm. This model was made in Form·Z as a solid model, and exported as VRML version 2.
