Thor Stormbreaker - Marvel Endgame (3d print and foam)

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TheForgeProps

New Member
Hi everyone!

I've just joined the RPF (after a long time lurking) and have recently finished up a Stormbreaker build during the lockdown. I thought I'd show the photos off and show the build process!

The head is 3d printed, from PLA and resin, and the handle is foam over a metal pipe - I'll show more of the process in later posts. I 3d modelled the head myself, working from screenshots of the movies, and I think it's roughly size accurate.

Hope you enjoy!
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TheForgeProps

New Member
Thankyou! I'm pretty happy with how it turned out - I haven't ever used foam clay before, so this was a bit of an experiment.

Here is my 3d model of the head - I didn't bother 3d modelling the handle, because I knew I was making it.

3dmodel 1.jpg
3dmodel 2.jpg


And a couple of progress shots of the filling/sanding process - I didn't document this step much (because I feel like it's not that interesting!) but you can see the resin prints in the centre of both the axe/hammer sections, on the most detailed parts. You can also see where my 3d printer decided to throw a tantrum and create more work for me on the axe head.


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TheForgeProps

New Member
I finished the head off before I started work on the handle (because it was much easier to paint without the vines wrapped around it!). I basecoated it black, then sprayed it bright silver - it's hard to see the shine in the photo, but it's there!

For the darker metal, I used a mix of silver acrylic paint, with a small bit of black mixed in, and then added aluminium and iron powder until it was gritty and shiny. I masked off the areas I wanted to keep lighter, and painted on the mixture with a large brush, dabbing it with a sponge to remove any brush marks. I painted two coats, until the coat was consistent and the texture was right.

Once this was dry, I removed the masking tape, then buffed the whole piece with a liberal amount of iron paste, giving the silver parts some nice depth and darkening/shining the darker parts.
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TheForgeProps

New Member
Next up was the handle. I'm not really a fan of 3d printing wood- for me, it just always keeps a plasticcy finish, and I would rather make it out of actual wood, or if it is more organic, sculpt it from foam or clay. Weight was also a factor - I'm planning on doing the whole Thor build, and making the handle out of foam instead of plastic makes it about a kilo lighter, not to mention less chafey on the old hands, which makes it a big difference when you're lugging it around for a full day, and if I'm holding Mjolnir too, it's nice for both to not be too heavy.

TLDR: I made the handle out of foam!

First I drew a 2d outline of the handle under my existing 3d model,then printed out the template. Then I cut out some (rough) sizes of foam, bigger than the maximum size I needed for it, and with a channel in the middle of two of the pieces for the metal pipe in the head. I glued the foam pieces together with contact adhesive, then copied the template outline onto the foam, and cut it out. Lastly, I used a dremel to shape the handle and put in a few 'guide' lines for the foam clay vines to follow, and little bit of detailing on the end.

I wasn't overly precise with this stage -most of the handle would be getting covered in foam clay and primer, so very little would show.
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TheForgeProps

New Member
Finally, I glued the metal rod into the head with epoxy, then glued it into the handle with superglue after keying it up.

I used foam clay to do all the vines on the handle - you can use water to make it adhere quite well to other foam, and where it was touching the handle I just used a little dab of superglue to keep it in place until it dried. I basically just worked the foam clay into long strands, then draped them over the hammer where I wanted them to be. After this, I did the same but on the handle, and blended where it joined into the other vines.

I then went over it all with a dremel again, to put some more definition between vines, and then smoothed it all over with sandpaper.

I basecoated the foam with HexFlex from Polyprops, which worked amazingly well; I used a thick brush and painted it on in the same direction, which gave it a bit of a wood grain. Then, I used acrylic paint mixed with a little PVA, and layered on different shades of browns to get the wood effect. Lastly, I gave it a dark wash to give it depth. I didn't document the painting stage, because I'm hopeless.

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And that's it! Thanks for looking at my hammer :)
 

IamJAd

Member
That looks amazing! Congrats on a great build.

I’m not a builder, but I’ve always felt I could be if I knew more about the methods and materials you guys use. Home Depot doesn’t offer classes!
 

TheForgeProps

New Member
That looks amazing! Congrats on a great build.

I’m not a builder, but I’ve always felt I could be if I knew more about the methods and materials you guys use. Home Depot doesn’t offer classes!
Thankyou so much! Best way to be a builder is to start building! I'm self taught, and I think most people on here would be too - just pick a project, look at tutorials on youtube, look at what cosplayers are doing on instagram, etc etc - there are insane amounts of tutorials out there these days, so it's a great time to start making stuff!
 

Sybernettik

Active Member
RPF PREMIUM MEMBER
Wow! What was the total build time? I'd love to do something like this myself, however the 3D printer I have has a really small build volume
 

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