Speakers tend to modulate the amount of coarticulatory cues according to the communicative needs at hand. Coarticulation has also been observed in the visual-gestural modality. Despite this, little is known about the use of coarticulatory strategies in sign language, probably partly because access to this finegrained information can be very challenging. While the use of 3D electromagnetic articulography (EMA), a highly sophisticated experimental technique, has been widely (and successfully) tested on speech, the present studies are the first to provide precise kinematic measurements in the production of one deaf signer. In Study 1, we recorded signs produced in various locations on the signer’s body in different setups (height of articulograph, hands’ resting position, signer’s position). After having identified locations and setups that can be used to optimize testing of sign kinematics, we ran an experiment on coarticulation (Study 2) in French Sign Language (LSF) to capture articulatory overlap between signs occurring next to each other. In this novel approach, we recorded a deaf native signer (EMA/video) while signing phonological pairs composed of ‘1’and/or ‘3’-handshape. In a dynamical framework, we examine the kinematics of our sign data, revealing systematic patterns of overlapping organization driven by the phonological system. Our preliminary data showed both temporal and spatial dimensions of coarticulation in signing: (1) The anticipation of the ‘3’-handshape before the end of its immediately preceding ‘1’handshape sign (and vice versa); (2) the truncation of the repetitive movement of the sign. Our findings speak in favor of the acquisition of kinematic data for capturing contextual variation phenomena.