can you make windchimes with chainlink top railIndoor Wind Chimes - Striker Assembly

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hello everyone this is Robert and I figured it was a good time for an update on the indoor wind chimes project so back here somewhere I have the striker mechanism going this is just kind of a prototype but I wanted to kind of show you what my thoughts are behind the actual Striker mechanism and then I have some Chimes ready to mount up so we can throw those on there and maybe see how things sound in an initial test so lets do exactly that so for anyone not familiar with this project essentially Im wanting to build indoor wind chimes wind chimes that sit inside but kind of sound the exact same way as if they were outside so we can use an outdoor weather station to make the chiming in this video Im going to be talking about the striker you know that thing that dangles down that actually moves around and hits the Chimes for this design everything is ultimately rigid the Chimes are kind of held in place and so the actual Striker mechanism needs to be rigid as well it cant necessarily just be a string so thats kind of what Im dealing with lets see what Ive come up with one of the interesting things about this project is the sheer scale and size of it its very very tall and so its really difficult to fit on the workbench or really fit anywhere else in the shop it kind of needs to be mounted but also freestanding so what I came up with is this spine that Im mounting to the wall this is the only place in the shop that I could mount to the wall and still have access to it so this is about eight feet tall you actually cant see the other two feet that are coming up beyond that and the reason it needs to be so tall is this is the largest chime its about as tall as I am so its hitting the floor right here and its you know about the same height as me and so it needs to be able to hold six of these and I need to be able to kind of move them around and change things and rearrange and you know prototype and test things out so having this large Extrusion this is a 40 by 80 millimeter Extrusion mounted on the wall gives me that ability to kind of prototype and play with it a little bit and this wont be the final version this is just kinda for the prototyping so lets take a closer look at the chime or the striker mechanism and see how thats all mounted up here is a closer view of the striker mechanism you can see theres a couple 3D printed pieces couple dowels nice and simple The Joint was kind of one of the first aha moments that I had I ended up doing this as a magnetic joint theres just a little screw at the end of that and a ball bearing inside a large magnet and that just kind of snaps on and it gives me a lot of freedom and a lot of travel on this without having any kind of mechanical joints this thing needs to swing around a lot in some kind of mechanical universal joint I really wasnt super thrilled with so I think the magnet is a nice solution for that and it holds it just fine no problem we also have some wires coming off of this more on that later the interesting thing that I learned about this was the original design which is right here was just a single fixed piece that would just kind of clip into the rail but what I learned was that walls are not level and I you know obviously knew this but this wall kind of leans forward a little bit which means that at the bottom this is in the wrong spot so I had to make this adjustable with this dowel this quite simply just slides in and out and theres a little set screw at the top to where you can dial it in but something I learned from doing this prototype typing is you have to assume that this spine is not going to be perfectly level or the wall is not going to be perfectly level so you need to have some adjustments so thats what the top looks like and it moves nice and freely and has the wires so lets take a look at the bottom side so here is what the bottom looks like as you can see we have an electromagnet mounted inside this little pod right here if I take this off theres an electromagnet in the bottom side of this and then I have this little TPU 3D printed Striker and all of this is just kind of prototyping playing around this one is also just kind of slid in there so I can easily adjust it up and down and there is a microcontroller that Ill show you in a bit that is just pulsing both of these electromagnets and that is whats creating the motion its kind of on a random pattern right now the code is not finished by any means and this is just kind of for testing so it looks kind of funky one thing I learned why two electromagnets well great question originally this one just had a magnet on the bottom of it and it would just simply oppose the electromagnet well the problem is is when this is not pulsing it would just stick in place because this is metal so it would always want to be retracted and it would very rarely repel in the right way so when this is off and not pulsing I need it to just return to the middle hence having two electromagnets opposing each other and thats kind of how that works but we can just kind of move this down a little bit lower you can see we can simulate you know some sort of Striker motion I still need to dial this in quite a bit but thats how this will work and heres what Ive got for the electronics I quite simply just have an Arduino with a motor shield on it and were driving two Motors the top and the bottom electromagnet and then Im just hooking this up to a 12 volt power supply I can go a little bit higher with the power supply and get a lot more motion out of it but I think this is plenty for right now and thats really all there is to it the code can be done a lot of different ways but what Im thinking right now is youre basically engaging the electromagnet right youre turning on and then off there is a time delay between when that is on and the next time it pulses so what Im going to do is take that time that delay in between each pulse and map it to the average wind speed how windy it is over the last like five minutes then you also have the strength of the pulse hence using a motor driver the strength of the pulse will be then mapped to the instantaneous wind speed so if you have have one gust of wind on an otherwise pretty calm day you will get a relatively strong pulse but therell be a long time frame in between those pulses and conversely if you have a lot of wind over a or I guess a lot of gusts on a very windy day youll get a lot of strong pulses and a lot of high frequency pulses so thats the idea anyway but yeah pretty simple electronics and yeah lets I guess move on to the Chimes so over here on the CNC I have four of the six chimes with their mounting arms already on them I need to mount up the other two and then we can throw this onto the spine and see if it makes any sound Im not really sure with the current programming what its going to sound like but this will be the first time ever actually hearing these Chimes do their thing so lets get everything hooked up and see if it even makes any sound the two largest Chimes needed to be attached to the little mounting arms and heres what the process looks like you basically have a rubber band that kind of goes through the middle you have these two little pegs these are going to be metal dowel pins by just 3D print them for this and then they just kind of snap into these little recesses in the arms so its pretty simple as that all these pieces are 3D printed right now well see what the final ones end up being but that is the process for mounting the last two chimes so now its time to put them on to the main spine and this is actually pretty easy because the arms are designed so they just kind of snap in place you can screw into a nut that is on the spine but for right now Im just going to kind of snap them and place the weight of the chime themselves kind of presses against everything and holds them in place and and maybe theyll fall over time but they can just kind of be snapped into place there is a bit of an order to these um the longest one is on the right closest I want obviously the heaviest ones with the least amount of cantilever off of the spine so one three and five are on the right hand side and two four and six are on the left hand side and I think that kind of gives the most pleasing Arrangement also you want to make sure that the bottoms of them are lined up closely as possible because you want to strike them ideally as far down on the bottom as possible so the bottoms are kind of lined up but then the tops are just kind of free form and this Arrangement kind of looks best in my opinion okay so I have all of the Chimes mounted up everything should be good to go I just need to power it on I need to swap some of the arms as you saw but um yeah everything looks good to go looks pretty cool its about eight feet tall overall so lets go ahead and plug it in okay so its doing something its a lot quieter than I thought which is good because I can always make it a lot louder and its not as random as I would like I think the striker is too big theres only like half an inch in between each movement so it doesnt get a chance to really like swing around and bounce off of any of the others it kind of Only Hits one at a time but perfect concept I think its working I just need to change the size of the striker maybe space out the Chimes this is going to take a little bit of guessing and checking to kind of figure out but it makes some sound Im going to leave the video at this so thanks for watching um check out any new videos I got on this and what Im going to do is Im just going to kind of set the mic down next to this zoom in and you can just kind of listen to this for a couple minutes so as always thanks for watching see you in the next video okay foreign foreign Im making some progress on my indoor windless wind-chimes. In this video I discuss the prototype for the striker mechanism and go over the mechanics as well as the electronics.My Favorite Tools - 00:00 Intro 00:31 Project Overview 01:06 The Test Spine 02:14 Striker Joint 03:53 Electromagnetic Base 05:30 Electronics 07:03 Chime Mounts 07:29 Assembly Montage 09:02 Chime Test! 10:22 Soothing Chime Sounds