From the ABR Control repository.
The XML file can be found at https://github.com/abr/abr_control/blob/master/abr_control/arms/jaco2/jaco2.xml
and the corresponding STLs at https://drive.google.com/open?id=1doam-DgkW7OSPnwWZQM84edzX84ot-GK
To run, extract the STLs into a folder called 'meshes' in the same directory as the XML.