I was experimenting with using the hinge pieces to create arcs and curves and came up with this little mech. I call him TurtleTank.
head can tilt vertically and twist to either side.
Tail has same range of movement
legs and bend at the hip/shoulder and tilt out slightly (impeded by the weapons either side of shell (doh!!))
Inside shell has a "power core" element similar to the spider mechs
side guns were intended to tilt but sadly they are too close to the legs, will need to find ways to reposition them.
head and guns feature "cockpit" areas, not opening.
List of possible changes:
legs are different lengths, need to figure out a way to change that
weapons need repositioning to give greater range of movement
shell features a number of "holes", need to figure out a few ways to fill some of them in without affecting the overall shape.