Model a WORKING Spring in Fusion 360! (ADVANCED TIP)

just a heads up I don't plan on cluttering this channel with a bunch of fusion 360 tips and tricks but I did come across a clever solution to a problem I think that doesn't exist on the Internet so I wanted to share it on our public Channel rather than the fusion 360 course because I know there's a lot of people who are asking how to do this and there's just no answer out there and I think I found the answer so the question is how do you make a spring work in fusion 360 and so I've actually done it if you come in here on our screen you can see I've made this little spring that not only acts like a spring but it also Springs back on its own and my reason for making this is I'm trying to model this little 12-volt so annoyed I'm going to be making a little whack-a-mole game for our one-year-old son Hudson and I'm going to be using these and I wanted to model the still annoyed that I could make the thing itself infusion here is the workaround that I found so let's create a new design spring and we're actually going to make this one this exact spring so I can show you exactly how to do it I haven't done this yet so hopefully this works so first thing to do is turn on the origin and then we are going to select create and then coil and let's go on the bottom plane here and then actually let's do a top-down view and click right on our origin and do the twelve millimeter base that we have on this and it's going to automatically basically make that spring I used in my example but my spring actually has a little taper to it and so with a diameter of eight two basically I work that's about a 10 degree angle on there so we go ten degrees and it's actually reversed we go to negative ten degrees and then we need to change the section size you notice our spring is a lot thinner in fact about half a millimeter rather than three millimeter just a point five and then lastly we choose the height which is also 12 millimeters not 18 and the revolutions one two three four so that's good they're at four those are our settings we click OK and so now we've got our that looks like our spring but Fusion has no functionality if we wanted to join these parts with a spring can make them springy so the hack is to split your spring in half so let's turn our origin back on when it types s on our keyboard what you can't see let me turn on my keystrokes here there we go okay and type split we're going to split this body the body is our spring the splitting tool is this plane and it can be any plane that divides the spring in half and click OK now if you look in our bodies we have all of our spring is divided in half and trick number two is to apply revolute joints to every one of these joints so that they rotate on each other so I'm going to do that real quick let's say assemble ad belt joint oops and you can't apply joints to bodies these all need to be component so hold shift click them all and say create components from bodies click assemble as built joint change this to a revolute joint and we're going to select our first little part and our second little part and it's going to ask us where we want to revolute and we want it inside where the two meet right there and if you can get the flags all the same either up or down it helps but it's not absolutely necessary then you click OK press and hold your right mouse button and drag up to repeat the last function which was a joint ad belt joint select the next to that one did not work cancel that see how I did the flag in the wrong place [Music] okay so now we've got all of our revolute joints attached if we are or to ground this first component you'll notice we're like a quarter of the way there kind of acts like a spring but not really so let's undo that let's unground this component and we'll show you trick number two which is to force these revolute joints within a slider joint so to do that we're going to create a new sketch on our bottom plane let's just make it a 15 millimeter circle say stop sketch press e for extrude drag this down one millimeter sign but we don't want to cut we want a new component out of it click OK let's change the name of that component to bottom we're going to copy that component right click on the top and say paste new and move it up so it's just touching that top coil click OK now we're going to apply rigid joints from those plates to the top coils will say assemble as built joint capture that last movement we just did say from here to here not a revolute we want that a rigid click okay and we select the bottom plate and this one we click OK now here is the big trick well the medium-sized trick there's a bigger trick in a second it's deploy a slider joint between these two plates so we do another ad built joint from this top one to this bottom one this time it's a slider and the direction of movement is right here in the middle of this top one right here there we go click OK and now we're pretty close if you don't forgot to ground the bottom plate sorry about that top didn't rename bring in a top bottom right click like ground so now we've got a spring and it works pretty good and foremost tuitions this would be okay you could apply some contact set so it doesn't go over itself and it would work but you'll notice a lot of the work is being done from the first bottom coils and the tops are kind of hardly not moving at all so we're going to add some lotion links to fix that so we're going to do is select a cymbal motion link and we're going to choose just the side let's start with one side I found if you do all of them it kind of messes up sometimes you kind of have to mess around with this I like for my example it was negative ten millimeters but since this one's so much shorter let's change the distance to negative three and try five degrees and I'm just literally eyeballing it to see if that's bringing on just that first joint looks natural so negative three five we'll start with that we can edit it in a minute if it doesn't let's click this slider and click the next one negative three five that looks pretty good repeat from the slider to this one and we're linking these joints together so that when one slide the other revolutes and you notice that this one kind of looks really wonky that's because the flag was the opposite direction so just change the angle to negative five there we go getting closer that may even be good yeah that's real good actually actually the bottom one this one here doesn't look natural so let's add one to that as well so revert repeat motion link assemble motion link from this one to this one negative three five and these are the dimensions that are going to change basically negative five based on your C adding that one just screwed it up we're not going to do that one we need to jump to the other side so let's say repeat motion link from this one to this side you'll go negative three five and that needs to be a negative five that looks good except it messed up that middle ones let's try adding a middle one there just kind of trial and error here this one's going to be negative three five needs to be negative five there we go that's a spring and it maintains its shape which is good so now we click okay now let's see that's real nice and that is probably perfect for 99.9% of projects but I wanted to take it one step further and see if we could actually make it retract the way that you would expect and this should be as simple as going to your slider editing the joint limits and adding a rest at zero millimeters so that when you drag it down it just pops back up but for whatever reason you can't add a rest with something attached to motion links so first of all I actually do want to add a few joint limits here let's take off that rest at a minimum and a maximum because we want it to be able to stop where it makes sense for a spring a little more than three would have been fine let's go edit joint limits let me get negative five click okay yeah now this will go from here to here and stop so if we want this to spring back on its own we add need to add one more plate on the top with another slider joint without any motion links and that will spring back so we come down to the top we copy we go to our top level component we select paste new we don't want to move it around we want it just overlapping the exact same one and now we say as built joint between this top and this top and this one we want to be rigid so basically there's two tops right on top of each other you can't tell the difference and click okay then we want to do a new as built joint from our new top to our bottom this needs to be a slider right in the same position as the old top click okay and then this one if we go to our new slider joint edit the joint limits and put a rest at zero millimeters and click OK now when you drag this down and let go it pops right back up there you go let's turn off the joint so we can look at it and enjoy it a little more so and then of course if you don't need these washers on the top and bottom you can just turn them off and the spring will act exactly like you would expect without them there you go that's how you make a spring work in fusion 360 and not only compressed but also spring back on its own hope you enjoyed it if you do enjoy this kind of things don't forget we do have a fusion 360 course I'll leave a coupon link in the description where you can go check that out and we'll be building not only this entire cylinder model but also I'll be posting the whack-a-mole game eventually whenever I get around to designing it as extra credit and the extra credit section of that course let's see there hi

Channel: Mike and Lauren

Views: 102,925

Keywords: mike, and, lauren, fusion 360, tutorial, how to, tips, tricks, spring, compression, compress, expand, retract, elastic, working, model, joint, revolute, slider, 3d, spring motion, autodesk, spring joint

Id: iwwy7mdfTHE

Length: 11min 22sec (682 seconds)

Published: Mon Apr 17 2017