Fig. 4From: Low cost 3D printed clamps for external fixator for developing countries: a biomechanical studyLeft ro right: a Axial compression, b Over ball-and socket, AP-bending test set up providing an offset of 50 mm to the axial force c Over ball-and-socket, ML-bending test set up with a perpendicular force transmision.The direction of input force is denoted by the red arrow shownBack to article page