This instructional How-To Video about our DIY Mannequin's Joint Update:
Another section of our How We Did It Series:
Hey guys, Gabe here from TVM again, just giving you an update on our DIY Mannequin's Unique Joint That we came up with on another episode of How We Did It! This video explains the modifications we made to our Stunt Dummy Double's Joints to make him articulate how we wanted him to. Check out our How We Did It Playlist for the remaining videos on our Articulating dummy. Song credit goes to Silent Partner and their song Jupiter.
For more on how we created each Joint Check out our Transcript to see specific Dimensions
This DIY Video explains in detail how we Made our Mannequin's Articulating Joints
Manutahi Mairau1 week ago bro , you are a genius !!!!!! Mauururu ( thanks ) !!!!! Chivone211 month ago 'OLY CRUNCHY TOENAILS BATMAN !!!!!! Devin Doull2 months ago I'm guessing u used 1 inch Devin Doull2 months ago What inch pvc pipe do I use for the dummy, I tried to use 3/4 inch pvc for it but it seems to small and the golf ball is to big for the 3/4 inch connecter Tulsa Video Magazine2 months ago Remember to heat up the ends so that you can insert the ball in. Without that process the ball will not fit in the 3/4 Inch hole. We used 3/4 Inch PVC. Devin Doull2 months ago +Tulsa Video Magazine I went back to it again today and it all worked thank you for the help, I will update u on my guy and how it all goes Tulsa Video Magazine2 months ago Awesome, sounds good and good luck! Fun halloween stuff2 months ago brilliant! GummyTumor3 months ago This is pretty incredible. Thanks for posting, I'm gonna try to build this, but I need to save up for some of the tools first. Tulsa Video Magazine3 months ago Awesome! It would be great to see your rendition of it and keep us updated on your progress. Always love another DIY person. Good luck! 1 timm20206 months ago I have that same cap on the chair. Small World. Lol Cap Props8 months ago Thanks a lot for this video I plan following up and making one for myself soon for my armor cosplays. I really hope if helps fills the needs im after and ill be sure to post a message saying thanks for tutorial u guys did. And again thanks for sharing Tulsa Video Magazine8 months ago +Cap Props Thanks a lot, Would love to see what you come up with afterwards. Keep us updated and good luck. Keith Cassidy10 months ago With the 1-1/4 inch PVC do you still have to heat the PVC Tulsa Video Magazine10 months ago Yes you will still need to heat the PVC. We have found that a heat gun works the best for the heating. The heat allows the PVC to wrap around the ball giving you a secure fit without the secure fit the ball will just pull out with no resistance. Keep in mind that this is the way we did our build. If you find a more creative way to do it we would like to here about it. Our goal in putting out this video was to get people thinking about ways to make the mannequin have full mobility like a human thus giving it a more life like appearance. This was the only way we found to do it affordably it is not necessarily the best way. Tulsa Video Magazine1 year ago zbyszekroyal, The bolt head should be burried until the head is flush with the outside of the ball. If you stick it further into the ball it wont necessarily make a difference, but when compressing the ball it could split the ball, so going too far will cause issues. We used 3-1/2" Bolts and ground off the extra length with our bench grinder. The slot is so the joint can articulate further not for keeping the ball in place. We used hose clamps to adjust the joints rigidity after compressing the clamp with our hands. Also, when you are compressing the ball into the socket be sure to use a towel and some water to compress the coupling around the ball while it's still warm, this is what will lock the ball into the socket above everything else, the hose clamp is just for insurance and to keep the joints from moving around on you. Lastly, if you didn't want to use a coupling, you could use 1-1/4" PVC and just pound the balls in directly, this will work the same way as having a coupling on 1" PVC. Just an FYI! Any other questions or do I need to elaborate on anything. Let me know! Zbyszekroyal1 year ago Thank you so much for the prompt and detailed reply! You rock!! However, I'm thinking the 3-1/2" bolt is for the double articulation. I've decided that the only double articulation I want is for shoulders and perhaps one or two other joints. Seeing how my 2" bolt was too short and I had to pull it into the golf ball another 1/2 inch, and judging by what the bolt looked like when you held it up to the camera, I'm thinking the single-articulation bolt is 2 1/2". Am I right? And one more thing: why didn't you cut two slots into the coupling instead of having two golf balls? Would two slots be too compromising of the coupling's integrity, and cause it to break? Thanks!!! Zbyszekroyal1 year ago On, one more thing. I have all the tools I need except for…… the bench grinder. Any ideas here? Tulsa Video Magazine1 year ago +zbyszekroyal Single articulation is yes 2.5" bolts, also, if you bought the bolts at a hardware store, generally they will exchange them just a helpful hint. The more you cut the coupling the less rigid your structure so to answer your question we found that adding an additional ball to the socket was a lot better for rigidity than cutting the coupling up. The reason for the two-balled joint is to allow rotation on one half, and then horizontal and vertical movement on the other. If you don'"t have access to power tools it's possible to use a Hack Saw to cut the bolts off, However this will be a very slow process and they wont be flush, which you could use a file to get them as close to flush as possible. The joints will still rotate, the issue is that the bolts will only rotate until they hit the inside of your coupling, stopping rotation. It's not completely necessary for the inner hip joints or shoulder joints to have a completely flush bolt, you will still get some rotation depending on how much excess bolt you have. The less bolt, the more rotation. Zbyszekroyal1 year ago You da man (assuming you're Gabe)! Actually for all I know, you could be da men and da ladies! Thanks to everyone who's helping me! Tulsa Video Magazine1 year ago hahaha You're welcome bud. Good Luck, if you come up with any differences you'd like to share feel free, this was our first prototype and we just cracked down on it until we got it to work. Always looking for new ideas and projects. Zbyszekroyal1 year ago Hi. Me again. I have tried five times making the joints…. I cannot get the ball to "lock" inside. It falls out just by inverting the joint. Each time I tried a different length of the slot. Nothing worked. And I don't have a heat gun, I am using a propane torch. Any advice? It's crunch time over here; I need to have this done this weekend and here I am not even having started. Tulsa Video Magazine1 year ago +zbyszekroyal When you are putting the golf ball into the Socket, you have to apply a very large amount of pressure, we hammered it in, there is a very small ring on the inside of the coupling, if you look closely. If at all possible the golf ball should be almost touching that ring. So, my suggestion is to reheat the socket, and try and get your ball further into the socket. This is what will help "lock" your joint. Also, before the socket cools down wrap a towel or something to stop your hands from burning and squeeze the top of the coupling to attempt to mold the joint around your golf ball. After doing so you will have to "Break" the ball loose from the socket, do not do so until the socket has hardened again(cooled down). This is the exact method we used(Other than the propane torch, however the method of heating your socket shouldn't have much of an effect on its outcome). If you still can't get it, maybe you could send me a picture of your work and I'll try and see if I can visually explain it based off of what your situation is like. Good luck! Zbyszekroyal1 year ago Thanks. What do you mean by "break the ball loose"? Tulsa Video Magazine1 year ago Well when you heat the coupling up enough, the ball will melt a tiny bit into the coupling which is fine, but again you will have to break it loose. Inside the socket before you'll get rotation out of it. It shouldn't come completely out of the socket, just give you articulation afterwards. Zbyszekroyal1 year ago Got it, thanks. Zbyszekroyal1 year ago I was going to describe my success to you and post accompanying photos, but this has been a heck of a learning curve with more than a few unexpected problems. The latest is this: The joints were really tight when I made them, but once I assembled and glued the whole frame, they got really loose. The hose clamps hold the balls in place, but the issue is that the joints spin on the nuts. The balls stay stationary in the PVC fittings while they spin on the nut! It's worse for the double-ball joints. Help, please. Tulsa Video Magazine1 year ago In our experience We have had success in tightening loose joint in this manner. If the bolt is still securely imbedded in the golf ball and not completely striped out of the ball you may be able to tighten it up by pulling on the joint like you are trying to pull it apart and spinning it in the direction that would normally tighten the bolt, be care full not to over tighten. When posing the dummy the clamps should be loose enough to not break loose the joint bolts.Posing while they are tight in the manner described will result in some kind of failure of the joint. Take care not to over tighten the clamps until you have the dummy in the pose you desire.If a joint becomes striped out you have to replace it or take the joint apart and get a wrench back on it. We have replaced many pieces on our dummy by cutting out a joint and replacing it.It will generally cost you a pvc coupling to repair a joint. If you are trying to support a lot of weight with the dummy such as heavy clothing and the like then you might consider increasing bolt size as this gives you more surface contact with the golf ball's outer plastic and tends to hold weight better. We recently replaced most of our joints with the three eights bolts to better handle the weight of winter clothing. Hope this helps. Let us know how its comes out. Zbyszekroyal1 year ago It would have been nice if you had said this from the get-go. I'll keep trying to work out something to fix it. In the meantime I have added supports to it to help it stand. I am thinking my next mannequins will not have any double-articulations. That abdomen joint is quite problematic. If you wish to see photos of what I've accomplished with your guidance, check out my facebook page….. Mark C Still. Zbyszekroyal1 year ago Maybe something like Loc-Tite or a thin coat of epoxy.something that will hold the joint in place but can be broken with leverage. Zbyszekroyal1 year ago This is fantastic and I will make this myself. I purchased all the parts and started this morning. But it seems I bought too-short bolts. You don't mention this on the video. I bought 2-inch, and the only way they work is if I suck the bolt head about 1/8 inch or more into the golf ball. But that won't make a difference will it? Also, for the double-articulated joints, how long are those bolts? I went ahead and heated the coupling and pounded the golf ball in without dremmeling the slot first. So, right now the golf ball is loose. Is it that slot that allows the ball to lock into place? I am hoping you will reply back ASAP. I need to make this mannequin - and possibly more - for a Thanksgiving/Christmas display this weekend! Thank you, Mark