Nerf Sledgefire Shell

by 3dYeti, published

Nerf Sledgefire Shell by 3dYeti Aug 22, 2013


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Here is a replacement shell for the Nerf Sledgefire Blaster.

This is a work in progress. I have not been able to get a consistent seal yet with my prints, even with the bottom lip. Derivatives would be welcome.

Update: I have added a v007 *.stl. This one consistently fires, but ranges are less than half of what the nerf shells it came with can get.


I have included some supports for the thin spines, but you will also need to print with support as there is a thin lip on the bottom.

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Just printed one now. It works great. I do have a question. The part where the darts bottom is. There are 3 small triangle things and are only attached to the rail. They look like we need to break them off. Do we break these off?

Am I able to be granted permission to use this design to print items and sell them?

No. You can print them and give them away for free, though.

I have made a remix that is more accurate to the design of the actual shell. Hopefully it works better, because it has the small shafts inside and the small pieces of plastic partially blocking the back holes. Please tell me how well it works, not tested yet.

Nerf Sledgefire Shell

Could you brass the barrels of the shell to get better ranges?

Comments deleted.

You need to make one with no holes on the side and open up the air flow through the back and that should fix your problems:)

Could you please design and post a shell that fires a single elite dart and one that fires a mega dart, please?

I've printed two of these marvellous shells. They fit perfectly in the blaster, but they jump out when the gun is opened for reloading. This is really cool, and I wish the original shells did this.
The range is indeed less than half. I used a drill to crudely smooth the inside the shells, and the range went up by 2 meters. A bit of acetone used to polish the insides should do the trick methinks.
Also, the original shells contain a shaft about 45mm long (estimate) that slides inside the darts. If this were also printed, and able to be slotted into the shell to complete it (after being polished), this shell would most likely be absolutely perfect.

I have made a remix with the shafts, and with the little plastic parts that hold the shafts in the middle of the holes. Should improve performance if you can clean up the inside a little. This isn't tested yet, so please tell me how it works and how I can improve it.

Nerf Sledgefire Shell

what is the length supposed to be in mm? my daughter lost all of the shells so i cannot measure one.

I scaled the file up 2500% to 37.11x33.01x76.06

From my measurements it should be correct.

Comments deleted.

I scaled the file up 2500% to 37.11x33.01x76.06

From my measurements it should be correct.

Could it be that he used imperial mesures? That would fit to 2540% scaling to convert to metric. What do you think?

So, what were your settings when you printed it? I've tried printing the .007 file twice and both times it comes out thin with a double lip-thing instead of a full shell like what you're picture shows. Some help would be appreciated :)

What is your printer? What slicer are you using?

hmm. this is kinda strange, not sure if anyone else has this probelm. I loaded this up on my Cura slicer and it slices weird. It slices within a few seconds and the toolpath isn't right. The other thing is, when I load it up to print, my printer only prints one dot, and is done within about 30s or so.

anyone else has this problem? not sure if the STL is wonky or whether it's just incompatible?

awesome work BTW. Was hoping to do up one sledgefire shell myself. so when I saw this on thingiverse I was like 'Woo yay someone did my homework for me.'

That is odd. I use simplify3d for printer control and slicing. Perhaps you can try a different slicer?

I realise what's wrong. the file is in really really really really really tiny scale. that's why it only prints a dot......

the only problem is i'm not sure how to scale it up enough. hmmm.

maybe i'll scale it such that the length is the same. hopefully that does the trick!

scale it by 25.4 that does x10 and inch to metric

My slicer (cura) allows me to scale such that I can input the Z dimensions. All I did was to measure the Z height, input that and voila! gonna head off to print and see how it goes :)

hmm. I tried loading this up on slic3r with similar results. hmm.