We’ve seen (and written about) many 3D printed Arc Reactors over the years, but the one we’re looking at today is a bit different as it’s not just an ornament for the shelf, it’s an Amazon Echo Dot enclosure.

This comes to us from the MyMiniFactory user Deja’vu, who created it for a recently closed contest on the site to 3D print clever housings for the Echo Dot, Google Home and any other smart speaker on the market.

We were told that this arc reactor was designed in Fusion 360 over the course of around five hours simply using images from Google as a reference, basing it on the first arc reactor from the 2008 Iron Man. Printing on the other hand took a bit longer than that at 20 hours.

It is, of course, big enough to house the speaker measuring in at 96 X 140 X 140 millimetres.

With the raw plastic off the printer and the supports and imperfections removed an automotive body filler primer spray paint was applied.

After several layers of the filler, it was smoothed down with a sanding sponge and it was ready for paint.

A base coat was applied it was left to dry and several other coats followed it. The final detailing – such as the copper – was then painted on by hand.

For this project we have the rare opportunity to see it at every step of the process, starting from the 3D render, to the raw plastic and finally after paint. See more of that in the small gallery below.

If you’d like to make your own the files are available for free right here. We hope someone makes their own version and mounts it in a glass case with the label “Proof that Tony Stark has a heart” because that would make a much better display piece than the arc reactor on its own.

You would have to cut holes in the glass or do something similar to accommodate the acoustics, but it would be a clever way to hide the cable.

This is the third print we’ve featured a print from the design contest mentioned earlier. The two others were a Stargate and an Atari 2600 joystick.

Previous 3D Prints of the Day: