I'd like to make a digger or a dumper truck in Kerbal Space Program using the breaking ground robotics parts. I can, of course just use powered hinges, which works, but isn't how tall diggers and dumper trucks work. I want to use a passive hinge and a linear actuator to power it, but this requires making a closed triangle, with passive hinges on all 3 corners. Is there a way to connect a part to existing structure at both ends?