I got the idea for this moc from an old Dinotopia book which has a large arthropod strutter in it which is eventually used for evil means. The strutter itself is a machine that needs a crystal to power it and is operated by a human pilot. Here's my interpretation of it.
About this creation
Close up of the claws closed.
Close up of the claws open.
Side shot showing the head area tilted down to demonstrate neck articulation.
Rear view close up of the inside of the rear head area.