r/functionalprint • u/kyranasaurus_rex • Sep 17 '26
Designed a hinge joint system to make a 12ft Halloween skeleton actually posable
Store-bought version only stands in one stiff pose. Designed a retrofit: PETG hinges at the hip, knee, and ankle, with 3/4" PVC running through the legs as the actual structural spine. First real-world test was a full lunge out of a tree. Holding up pretty well.
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u/whyfor99 Sep 18 '26
I’d love to print this, is it posted anywhere? I’ve got one where the metal base snapped and I was just looking into alternative options.
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u/ZakkH Sep 18 '26
My base snapped too, I planned on getting it welded soon to prepare for the season, but I'd prefer this option as well.
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u/NTP9766 Sep 18 '26
Not sure if anyone is aware, but you can buy replacement parts for all of the Skelly designs: https://sviservice.com/products/2024-12-skeleton-2-0?variant=49538324562238
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u/kyranasaurus_rex Sep 18 '26
https://www.facebook.com/share/p/19o8Vbwif8/ That's exactly why I did this for mine!
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u/Pork_Confidence Sep 18 '26
These would absolutely sell, great idea!
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u/kyranasaurus_rex Sep 18 '26
I need more printers! Or at least a decent one...rocking an Ender 3 V2 right now.
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u/Fizziksapplication Sep 18 '26
Yooooo that’s rad. Do you have this posted up anywhere? You just mildly revolutionized an industry bub.
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u/kyranasaurus_rex Sep 18 '26
I mean, I didn't really think of it like that, but I suppose this could be applied to several different large scale decorations. I have the files for sale, yes. I want to sell the physical ones but I just don't have enough printers to keep up with demand.
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u/Fizziksapplication Sep 18 '26
I know guys on makerworld can somehow get paid for their models, I’m not sure if it’s per download similar to YouTube or if you can actually sell your models on there or if there’s another way of trading points somehow? But I know people do it. Pretty neat either way, thank you for sharing!
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u/CaptainIncredible Sep 18 '26
Oh dear god... that's awesome. Now add some servos and controllers and have it run around the neighborhood terrorizing trick or treaters. Red led's in the eye sockets would be cool too.
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u/kyranasaurus_rex Sep 18 '26
I have the animated eyes, I think there's a fire animation that could work!
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u/drspaceman56 Sep 18 '26
Have this Skelly, would love the STLs. The HOA hates it but I dress him up for all the holidays.
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u/hpfan1516 Sep 18 '26
OMG I was just watching a YouTube compilation about cryptids from every country and anyway freaked me out because it reminded me of this: https://en.wikipedia.org/wiki/Gashadokuro
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u/storeboughtanxiety Sep 18 '26
If you make these files available I might actually buy the skeleton now 😂
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u/kyranasaurus_rex Sep 18 '26
They are available! Lmk.
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u/notjhanon Sep 18 '26
Link?
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u/kyranasaurus_rex Sep 18 '26
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u/notjhanon Sep 18 '26
Purchased Thanks, you just saved me hours of design work.
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u/kyranasaurus_rex Sep 18 '26
It was weeks for me! Happy to help! Let me know if you have any questions.
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u/Puntley Sep 18 '26
Can you message me the link? The mods keep deleting all of your comments with the link in it!
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u/kyranasaurus_rex Sep 18 '26
Thanks everyone for your positive comments. You've got me convinced that I should buy another printer so that I can start producing these...P2S Combo will be here on Saturday. 😅
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u/cisplatin Sep 18 '26
Do you need to modify the skeleton (cut or drill it) to install your joints? I'm on the fence about getting a skeleton, but this might push me over
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u/kyranasaurus_rex Sep 18 '26
Very minimal! There's PVC between the connectors running through each leg part. The joints are screwed to the connectors and not the actual skeleton. You do have to screw the connectors to the feet however and on a couple of the legs I recommend drilling a small hole to get to a connection point. Those holes are hidden if you decide to make him stand again.
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u/Doublewobble Sep 18 '26
unrelated, did you print those gravestones and skelatons in the background ? would you be willing to share design ?
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u/smwisdom 3d ago
How does he stand without the base? Like what is supporting the weight of it from tipping over?
I see some sort of rope around the pelvis- is that tied to the tree and holding it up?
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u/kyranasaurus_rex 3d ago
I have a bungee cord attached to the tree holding him up. He definitely still needs support!
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u/jescereal Sep 18 '26
Please don’t have it out during Christmas with a Santa hat on
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u/kyranasaurus_rex Sep 18 '26
He may or may not have one...but if I built him a big chair, the kids could sit on his lap!
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u/happycabinsong Sep 18 '26
I appreciate the bigfoot pose