Arc Reactor From Iron Man (easy Build, Studio Finish)+ 3D Printed Version

Enroll in my 'Electronics in a nutshell' course here:

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As a part of my prop making initiative, which includes a helmet, the iron man gauntlet, and this- the arc reactor.

Also check out my Iron glove/gauntlet HERE

Also check out my Diy Iron man phone case HERE

Since I had recently built a 3d printer, I decided to print all the files

I used the files which can be found HERE

The model is NOT modelled by me, and therefore you will have to go to link above to get the files.

I scaled the part to 80% as the part seemed to big to me, and now that I have scaled it down to 80%, I still feel like it is a little too big. SO either print it in 75% or 80% if you want results like mine, or go all out and print it in 100%.

Step 1: Fine Tuning and Assembly

To coil the copper wire, I removed the caps, and individually wounded them onto the caps. Then I super glued the copper wire to the caps. Then I cut off the part of the copper wire bellow the caps. All this was done so that the support cage could be attached properly. If you are confused by this step then please check the images, it will clear up a lot of the confusion.

Before I glued the pieces, I spray painted them with cheap spray paint. I also sprayed clear lacquer so the paint would be sealed in, and would not start to chip away. The spray lacquer also prevented the copper wire from tarnishing and reacting with the oxygen to create an ugly appearance.

Other than that, I had to manually sand a few of the pieces, so that they would look better. Then I proceeded to glue all of these parts with some super glue.

Step 2: Led, and Electronics

For the bottom support cage I used 4 blue leds

For the top ring, I used 10 white smd leds

All my wiring was done in parallel

Rather than place the leds in the same spots as in where the maker of the model intended for me to, I decided to place the leds in a slightly different position, as the position that I had chosen was much more efficient at shining the light out

That's it!!! Have fun assembling yours, and please feel free to leave any questions/comments down below in the comments section.

Enroll in my 'Electronics in a nutshell' course here:

Also check out my youtube channel here for more projects and electronics tutorials:



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    7 Discussions

    Saral Tayalpaulsooch

    Reply 3 years ago

    Regular 5mm leds.

    Ressitors depend on how you wire your leds and your power source. I used a simple 220 ohm ressistor in series to protect the leds from fluctuating voltages.

    The last part that you need is a small battery and a switch to complement that. I ended up using 2032 3v button-cell batteries.

    Good luck.


    4 years ago

    What color did u print it in will it work with white or will I need to get clear?

    1 reply
    Saral TayalJonny1128

    Reply 3 years ago

    I printed it in white and it worked well. In fact, it diffused the light saving me the trouble of diffusing the light.

    Tim P

    3 years ago

    looks simple minus the 3D printer thing... i don't have one of those, therefor what could i do for my "lack" of component?


    4 years ago on Introduction

    Really Nice Job !

    That is by far the best Arc Reactor I've seen yet; The coils around the outside were a Nice touch.

    1 reply
    Saral TayalWired_Mist

    Reply 4 years ago on Introduction

    Thanks. I strive for accuracy . You can also check out my iron man phone case and the glove/gauntlet. Just click on my profile, and go see my instructables. or it is the first few links on the top