Hello All!
I finally decided to purchase a Spirit Halloween full sized proton pack, and out of the box it was awesome. This is coming from someone who enjoyed the movies and the cartoons back in the 80's and still remember the cardboard pack I built way back then and the inspiration it had on this build. I had not initially intended to do much to this pack, but some of the stickers were crooked when placed and it was driving me nuts. So I decided that I would design and print some 2d stickers to replace those I was pulling. Little did I know this was going to kick off 2 weeks of designing and 3d printing close to 40 elements that was going to change the pack from the stock version, to the version I designed back as a kid along with some modern upgrades that I liked the concept of. So enjoy this small journey with me on the upgrades and changes to the pack.
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The overall idea:
I love the original pack, but as a designer at heart I can never just leave it like that as I love building stories. So right off the bat, all of the stickers were re-designed and 3d printed. I loved the feel of dimension it brought to them, and allowed me such access to aging that I fell in love with concept after the first one. The small hex bolts holding them on just looked industrial and fit with the look of the pack. Now the black and yellow bars, these were what I always drew on my cardboard packs that I built, it was almost my signature style and it had appeared on every pack I have ever made. It was only fitting that it ended up on the full sized pack.
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The S.P.O.R.
The deviation had begun, I had some ideas for the pack as I was designing away and decided as this was my pack I could have fun. First off, I loved the pack from Afterlife where Egon had modified the singular pack, the packs worked fine but Egon was making upgrades, I wanted my pack to reflect that. So I went along the lines of "What would a more refined version of this upgrade look like?" So I set to designing a plate that would drop onto the clippard valve, but when talking about it, I hated calling it "Egon's Upgrade from Afterlife", so I came up with calling it "Spengler's Proton Optimization Relay" or "SPOR" for short, which I thought was such an personal homage to him, and it made me smile.
So once the SPOR was finished, I had wanted to have it integrated with the overall design and the loose wires just didnt do it for me. So printing in PLA and using boiling water, I warped and twisted a set of plastic wires over the contours of the pack the match closely the locations he had wired it into. The unit with the switch where the wiring loom goes into was mainly because I I wanted to fill that space gently, but practically. So it became the main power switch and the cool little piece that ties everything together.
![Image]()
The Heatsink
This one was a huge change for me and the largest departure from the original pack design. I loved the Ghostbusters Video game and all the neat pack upgrades through it and the overheating sequence always stuck with me. Heat is and always will be a problem with proton packs. So after seeing Egon had attempted to include more heat dissipation in Afterlife by attaching a heat sink to the side of the pack, I decided to expand on the idea. I figured a heavy copper heat sink would be an amazing heat dump for a a high generating item like a proton pack. In a perfect world I would make the fins thinner, but I didn't want to be breaking them off as I handled and used the pack, so I designed them a bit blockier but the concept is there. The end result looks like a bolted on heat sink that matched the look and feel of the pack, while offering the idea of more passive cooling to keep the pack running longer.
![Image]()
The Neutrona Wand
Not many major changes here, just replaced all the labels with 3d printed versions and I carried the black and yellow bars from the main pack over to the thrower to make the pieces feel consistent with each other. I used a 3d printer pen to make the weld and it worked really well.
![Image]()
The Pack front
Sacrilege! Heresy! Yes, but I had fun. I decided after doing the whole pack I was going to swap to an ALICE frame and this started a whole lot of work as I wanted to remove the foam padding that spirit used on the pack. So after cutting down a new motherboard from .2" MDF and fitting it. I hated the gap that ran the outside of the board. So once again, off to the drawing board, I designed and printed a whole set of components that hid and disguised that line, while still allowing me to disassemble the proton pack if needed! So I design the pieces to mimic the parts of the proton pack they were connected to a few revisions later and the pieces all fit together and made a neat look. I created one more set of pieces for the bottom of the pack to tie it all together as well.
![Image]()
I can't tell you how much fun I had doing this and felt you all may enjoy the creative journey of the proton pack I have dubbed the "Samhain" version. If any of you have any questions about the mods I did or I failed to mention something in the build description, let me know and I'll do my best to offer my thoughts behind the modifications!
![Image]()
I finally decided to purchase a Spirit Halloween full sized proton pack, and out of the box it was awesome. This is coming from someone who enjoyed the movies and the cartoons back in the 80's and still remember the cardboard pack I built way back then and the inspiration it had on this build. I had not initially intended to do much to this pack, but some of the stickers were crooked when placed and it was driving me nuts. So I decided that I would design and print some 2d stickers to replace those I was pulling. Little did I know this was going to kick off 2 weeks of designing and 3d printing close to 40 elements that was going to change the pack from the stock version, to the version I designed back as a kid along with some modern upgrades that I liked the concept of. So enjoy this small journey with me on the upgrades and changes to the pack.
The overall idea:
I love the original pack, but as a designer at heart I can never just leave it like that as I love building stories. So right off the bat, all of the stickers were re-designed and 3d printed. I loved the feel of dimension it brought to them, and allowed me such access to aging that I fell in love with concept after the first one. The small hex bolts holding them on just looked industrial and fit with the look of the pack. Now the black and yellow bars, these were what I always drew on my cardboard packs that I built, it was almost my signature style and it had appeared on every pack I have ever made. It was only fitting that it ended up on the full sized pack.
The S.P.O.R.
The deviation had begun, I had some ideas for the pack as I was designing away and decided as this was my pack I could have fun. First off, I loved the pack from Afterlife where Egon had modified the singular pack, the packs worked fine but Egon was making upgrades, I wanted my pack to reflect that. So I went along the lines of "What would a more refined version of this upgrade look like?" So I set to designing a plate that would drop onto the clippard valve, but when talking about it, I hated calling it "Egon's Upgrade from Afterlife", so I came up with calling it "Spengler's Proton Optimization Relay" or "SPOR" for short, which I thought was such an personal homage to him, and it made me smile.
So once the SPOR was finished, I had wanted to have it integrated with the overall design and the loose wires just didnt do it for me. So printing in PLA and using boiling water, I warped and twisted a set of plastic wires over the contours of the pack the match closely the locations he had wired it into. The unit with the switch where the wiring loom goes into was mainly because I I wanted to fill that space gently, but practically. So it became the main power switch and the cool little piece that ties everything together.
The Heatsink
This one was a huge change for me and the largest departure from the original pack design. I loved the Ghostbusters Video game and all the neat pack upgrades through it and the overheating sequence always stuck with me. Heat is and always will be a problem with proton packs. So after seeing Egon had attempted to include more heat dissipation in Afterlife by attaching a heat sink to the side of the pack, I decided to expand on the idea. I figured a heavy copper heat sink would be an amazing heat dump for a a high generating item like a proton pack. In a perfect world I would make the fins thinner, but I didn't want to be breaking them off as I handled and used the pack, so I designed them a bit blockier but the concept is there. The end result looks like a bolted on heat sink that matched the look and feel of the pack, while offering the idea of more passive cooling to keep the pack running longer.
The Neutrona Wand
Not many major changes here, just replaced all the labels with 3d printed versions and I carried the black and yellow bars from the main pack over to the thrower to make the pieces feel consistent with each other. I used a 3d printer pen to make the weld and it worked really well.
The Pack front
Sacrilege! Heresy! Yes, but I had fun. I decided after doing the whole pack I was going to swap to an ALICE frame and this started a whole lot of work as I wanted to remove the foam padding that spirit used on the pack. So after cutting down a new motherboard from .2" MDF and fitting it. I hated the gap that ran the outside of the board. So once again, off to the drawing board, I designed and printed a whole set of components that hid and disguised that line, while still allowing me to disassemble the proton pack if needed! So I design the pieces to mimic the parts of the proton pack they were connected to a few revisions later and the pieces all fit together and made a neat look. I created one more set of pieces for the bottom of the pack to tie it all together as well.
I can't tell you how much fun I had doing this and felt you all may enjoy the creative journey of the proton pack I have dubbed the "Samhain" version. If any of you have any questions about the mods I did or I failed to mention something in the build description, let me know and I'll do my best to offer my thoughts behind the modifications!
Statistics: Posted by SamhainPropworks — November 4th, 2025, 11:12 am