Transformable Movie Accurate Custom Power Up Optimus Prime

Finally, after a solid month of working on this and several more designing the figure, I have completed a “Transformable Power Up Optimus Prime”.

What makes this “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.


Read about this custom at my Custom Optimus Prime blog at: for more photos, examples of my work and learn how to customize your own Optimus Prime.

custom optimus prime

About J C Sum

International Headline Entertainer, Content Creator and Investor
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33 Responses to Transformable Movie Accurate Custom Power Up Optimus Prime

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  3. jeffrey says:

    holy crap that is awesome. i want to buy one. how much

  4. jeffrey says:

    can you please make me one of your Transformable Movie Accurate Custom Power Up Optimus Prime

  5. spinozord says:

    please can you do an video showing how you do it
    please for this transfan
    transgrettings from meico

  6. José Aparecido de Resende says:

    Você tem estas peças para venda?

  7. Mike says:

    Do you know of any one that is doing a “Buster” optimus prime blaster that can be bought just by itself?

  8. david thomas says:

    how did you get the “shin guards together and the whole back assembley?i tried different things with my custom but now i cant cause its glued in one position.

  9. jcsum says:

    Hi David, thanks for the comment!

    The shin guards and the whole back assembly are each individual units that are epoxyed together from different kit-bashed parts. These “units” then attach to Prime via magnets. Magnets are embedded in Prime as well as epoxyed to the undersides of the “units”.

    Does that make sense?

    J C

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  12. CK says:

    Hey, that is one damn great custom Prime you’ve got there! What was the BFG and the Double gatling gun made of?

    • jcsum says:


      The BFG was combined from a video game gun replica (I cannot remember which one but I could just buy the gun and assembled it) and Jet Fire parts. The ammo belt is a model tank track.

      The other gun is a GI Joe gatlin gun (comes with several figures from the movie series) with the Jetfir gatline gun added to it. Same type of ammo belt.

      Hope it helps.

      J C

  13. CK says:

    Oh yeah, and one more question, Did JetFire’s cane help in making this magnificent custom?

  14. CK says:

    Ohhhhh,okay,thanks for the info! 🙂

  15. Rickzon F. Umali says:

    specifically what part did you use to build his jet pack?

    • jcsum says:

      It is a bit too complicated to explain. At least 4 – 5 parts from Jet Fire, Gundam and custom cut from metal – the red parts. The Jet Fire parts were also custom cut out, shaped and shaded. Use my model or the concept art and try to look at different toys that might fit in terms of parts. Star Wars and other space craft toys may also work.

  16. Rickzon F. Umali says:

    great. thanks a lot.

  17. Rickzon F. Umali says:

    can you recall which gun dam did you use

  18. Rickzon F. Umali says:

    great. I’ve been following this thread for some time now and I used the crab droid for primes feet and it worked great.

  19. Rickzon F. Umali says:

    which of the crab droin feet did you use for the jet thrusters

    • jcsum says:

      Not for the actual thruster but the extensions. The Thruster cylinder was cut from an aluminum tubing and parts from Jet Fire etc were epoxied on.

  20. Grabovsky says:


    Your custom is avesome, but can you tell me how to make the swords to be re attachable on ROTF prime? The arm articulation is annyoing me with those swords but I dont want to screw them out all the time. Please help 🙂

    • jcsum says:

      Thanks! You first need to remove the blades and cut off the “spokes”. Then you need flat disc magnets. Epoxy one to each end of each blade and and one on the inside of the arm where you want the blades to be. The disc magnets will allow you to swivel the blades out or just detach completely. The magnets you wants are flat disc ones like those found here

      J C

  21. joshua says:

    can you teach me how to make the strips??

  22. Pingback: How to Make Custom Power Up Optimus Prime Legs | BACKSTAGE BUSINESS

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