This is the much requested miniature Thor Stormbreaker from Infinity War. Built from an old bolt, a small scrap of wood and some painted string. I have to say I’m quite happy with how it turned out…
How to make mini Stormbreaker
The instructions here should make sense when used WITH the video. The axe head is cut from an M20 bolt which has an outside diameter of approximately 20mm. I marked 30mm as my length to allow for a slightly smaller finish after grinding, I then marked 10mm for the overall thickness and cut it out. With my new 10x30mm stock I first marked a centre line. At 13mm from the cutting edge of the axe I marked 5mm for the thickest part of the blade, down to 2mm for the cutting face. This was then cut out.
At this point I heated the axe heat with my gas torch and beat it to roughly the correct size and shape to receive the template (see bottom of page). This heating and beating part could of course be skipped if you have a larger bolt, or want a smaller stormbreaker. After marking the outline of Stormbreaker it’s just a matter of cutting it out until we need the axe head and hammer part of the axe. The hammer part needs to be a flared shape, so after marking roughly 2mm off what we want to be the narrowest part of the hammer section of the axe, that too was cut down. Just a bit more filing and grinding and we can mark the shape cutting part of the axe blade, this comes about 4mm in from the very outside of the blade to give it its distinctive look.
Now we get to drill the hole for the handle, I went with a 2mm pilot first, then opened it out to 4.5mm. Large details can then be added with a junior hacksaw before sanding and polishing.
Because the head of the Stormbreaker axe carries a lot of detail, this could be difficult to replicate on something small without it looking too busy, or potentialy damaging it. I looked at the original stormbreaker, and the toy version in Google images and decided to take the more interesting parts.
To highlight the deep cuts I decided to use ‘gun blue’, so after painting the whole thing with nail varnish, I gently scraped of the dry varnish from the bits I wanted to colour, before adding the gun blue with a cocktail stick. I used clear in the video because it’s all I had, but using any bold colour would have been much easier.
Metal etching the axe head
The blade details didn’t really want to be a dark colour, but I did want to see them, so I decided on metal etching with salt and a 9v PP3 battery. After running a few tests on scrap metal first to test the depth and clarity of the etch, it worked out well. The positive goes to the work, the negative goes to a Q-tip dampened with very salty water. Finally I coated the head with some clear car lacquer sprayed into the cap and painted on by hand.
Stormbreaker handle and vines
The handle is made from a small scrap of hardwood. I filed the handle to be a tight fit with a metal file and did as much rough shaping as I could, before switching to a Dremel drum sander to finish the details. A coat of brown shoe polish works well in the absence of wood stain, if you don’t have the correct colour hardwood to hand.
Lastly the vines are just some cheap string untwined to the correct size and twisted into acrylic paint so they look right and hold their shape, then superglued into shape. Boom.
The template below gives the size of my completed build and a enlarged image of the finished Stormbreaker, feel free to resize it as required for your build.
The above project is aimed at adults for education and entertainment purposes only, not to replicate. Anyone doing so takes full responsibility for their own actions.