I first started working on my “Transformable Power Up Optimus Prime” almost a year ago.
It was only recently I did a full repaint including adding battle damage to reflect a movie-accurate version of Power Up Prime in the movie Revenge of the Fallen.
Even after almost a year, I have yet to see a custom Power Up Prime that is highly movie accurate AND can “disassemble” so that Optimus Prime can reverted back to his original form and can still transform into truck mode.
What makes my “Power Up Prime” unique is that it is probably the most movie/ concept art accurate “Power Up Prime” that has detachable Jet Fire armour so that Optimus Prime can transform into truck mode.
Plus, the way the attachments are designed are so that different parts of the armour moves with body parts to maintain high articulation in “Power Up” mode. I solved one of the more difficult parts in designing the interchangeable feet.
Read more about this custom at my Custom Optimus Prime blog at: www.customoptimusprime.com for more photos, examples of my work and learn how to customize your own Optimus Prime.