Heavy/Scratch: ROTF Megatron Right Arm Mod: My first major mod attempt.

Discussion in 'Radicons Customs' started by savio-prime, Aug 2, 2009.

  1. savio-prime

    savio-prime Autobot

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    Hey guys,

    I usually do paint apps on my TF's. Some minor mods I've done are adding more articulation to ROTF Starscream's elbows and ROTF Jolt's head. But mostly I enjoy doing paint apps.

    For ROTF Megatron, I really like this figure. Aside from two out of 3 issues I have with the mold (minimal left to right head movement and undersized left arm), I went ahead and took care of the third "lack of a right elbow" issue.

    I've gone through the Radicons forums and researched all the different ways people have done the elbow mod. You guys have LOTS of great ideas and have been very helpful in inspiring me to take this step into the Radicon world. I may consider beefing up the left arm later on.

    Ball/Socket Joint:

    I decided to use the ball joint/socket from Universe Silverstreak to accomplish the task.

    The ball joint comes from the pelvis of the universe fig. The socket joint is the upper thigh which I cut from the rest of the leg.

    Surgery:

    Unfortunately I didn't have a camera to take pics of the process, because I decided to do this at work. I had to use a band saw to slice the right arm apart at the upper arm "V-Shape" geometry.

    Ball Joint Stage:
    For the upper arm I measured the diameter of the neck/stem of the ball joint and found the corresponding drill bit size to create the hole to place it in. I simply centered the drill bit to the newly cut surface of the upper arm and drilled in about 1/8" depth until it reached the hollow section inside the arm.

    The ball joint itself was cut from Silverstreak's pelvis in a way that it has a square "anchor plate" at the base of the neck to [mechanically] lock it inside the hollow space in Meg's upper arm. That way it cannot be pulled out of the arm in any way. No adhesive tools necessary! Just unscrew the upper arms and pry open the two halves enough to slide the joint in. Rescrew it nice and tight and walah!

    Socket Joint Stage:
    I shaved off as much material as I could in Meg's forearm to situate the socket joint inline with the barrel. Specifically I cut away the plastic down until the back of the trigger for the cannon was exposed. Luckily, I cut the outer shell plastic perfectly enough to be flush with the back of the exposed trigger.

    For the socket joint itself, I had to minimize the size of it for two reasons: 1. increase range of movement, and 2. fit onto modified area of cannon. I simply used a cutting wheel and a dremel, and an exacto to trim.

    Using ABS Weld-On fluid, I melted the socket joint to the cannon and let it sit for a few hours.

    ABS Weld-On doesn't work on some plastics, but luckily (again) it worked for both the plastics used for the cannon and the socket joint.

    The only thing left to do is a custom paint for him!

    All in all, an easy modification with the right tools! Here are the results:
     

    Attached Files:

  2. rattraprules98

    rattraprules98 AKA Chr0nus

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    great work i love it
     
  3. Thlaylie

    Thlaylie Active Member

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    You could just paint the socket area black for now as that goes good with Megatron's colors.
     
  4. OMEGAPRIME1983

    OMEGAPRIME1983 Well-Known Member

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    Nicely done. I may need to do that myself.
     
  5. Solrac333

    Solrac333 G1 got it right!

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    That is probably the cleanest and easiest looking elbow mods I've seen yet. Awesome.
     
  6. savio-prime

    savio-prime Autobot

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    Hey thanks for the responses everyone! Right now I'm looking into adding 2 additional "middle" fingers to his left hand. I'm going to do this by molding the finger in silicone rubber and casting it at work. Once I beef up the left arm I'll start on his paint job.

    I may start a new thread for my repaint of ROTF Prime. Masking him up was a pain in the @ss for chroming the gray plastic, but was worth it.

    I'm also going to learn how to solder LEDs. I've got HA BB and ROTF Prime in my sights for LED work.
     
  7. Duwian

    Duwian Wants FoC EVERYTHING

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    Can't you just go to the Home Depot and buy a ball joint that has screws on both ends? Then you could just screw the ball joints into his arm... No glue required, right?
     
  8. jru42287

    jru42287 With great power...

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    I wish I wasn't so scared to ruin my Megs to attempt this.
     
  9. Hellmutt

    Hellmutt Well-Known Member

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    This is a great mod, thanks for the tutorial
     

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