articulated usb lamp

This thing is a articulated usb lamp that can be plugged to a laptop usb port . very useful for working with laptops in low light conditions.
step 1: print the stl files in the attatchments
step 2: choose a couple of thin wires that can totally pass through the 4mm hole in the articulated joint(wires to power up the led)
step 3: pass the wire through one of the circular ring followed by one of the articulated joint
step 4: pass the remaining circular rings and the articulated joints consecutively
step 5: fit the articulated joints together at the ball junctions back back for all joints
step 6: finally lock the articulated joints with the circlip as shown in the attatched picture
step 7 fit the head pieces and the bottom clamp attachments
Note: the electrical wiring details in the photo attatched (a switch can be added in series if required)
the clamp needs a spring for its operation
I welcome your suggestions to improve this :-)