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Nerf Sledgefire Shell

by 3dYeti, published

Nerf Sledgefire Shell by 3dYeti Aug 22, 2013

Description

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.

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

From my measurements it should be correct.
I scaled the file up 2500% to 37.11x33.01x76.06

From my measurements it should be correct.
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.

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Instructions

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.
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.
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.
This comment has been deleted.
I scaled the file up 2500% to 37.11x33.01x76.06

From my measurements it should be correct.
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!
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.
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