 Hey, what's up folks? Welcome back to another layer by layer in today's tutorial. We're going to take a look at making props with 3d printed coils So in my latest project, I put together a pretty large prop This is a staff inspired by the Tuscan Raiders chief from the new Disney plus TV show called Boba the book of Boba Fett and This is a pretty large prop. It's built with several pieces and the way they're connected together is with some 3d printed threads So if we take a look at our cross section here, I want to show you folks how all of these pieces feature these threads that allow the pieces to just screw together and there's some things that I've learned about using the coil feature to make these threads and a little bit of Sketching these out so they're parametric so that you can kind of change the height of the tube And then have the coils parametrically go with With the set of features, so I want to show you folks that So check this out. If you want to 3d print your own, I have the files up on Prusa printers I have a link in the description. We also have a learn guide here with a fun video and Just as a backup the couple of tips here on 3d printing the pieces names of the pieces and just some other things like How big you need a bed in order to print them? So, yeah, you can check those out, but without further ado Let's jump into fusion again make a new document and kind of iron out how we do this So I'd start off with a new component Let's just call it tube and we're just gonna kind of make a basic tube now Normally the way I do it is I'd create a sketch. Maybe I do this and I draw out my thing maybe I want a Tube that's about 40 millimeters and then I'd make another circle and then I'd start figuring out what the thickness of our tube is going to be by doing a little bit of Sketch dimensions here, so let's say I want this to be four millimeters And then I'd extrude this out and say like a hundred millimeters So that's cool and all but a lot of the times when I end up doing is the top of this tube would have my connector bit and Similarly like this tube here if you want to have two tubes that are flush like this You kind of have to do some You have to make another tube as a bit as a fitting that is a little bit You know smaller radius you can see here This has a radius of 13 and then the outer tubes have a radius of 20 So you see it's a little bit smaller and you kind of have to make these These connector bits this way and the other thing that's really important is the internal geometry here It has a 45 degree angle so you can see here. Well, it doesn't say it's 45 degrees But it is a 45 degree angle thing here and without this here if we just had a flat surface here Your 3d printer would either require some It would either require some support material or it would just have a nasty overhang Which would be very difficult to print it floating in the air So with this geometry here it allows the printer to kind of catch itself And then this can print without any support material So if you notice all of the tubes kind of feature that or at least the ones that have these These smaller tubes to connect into the next thing so instead of Drawing it this way. I found it a little bit better to draw out your tubes in Sort of as a face profile. So instead of doing up and down. Let's do it on the sides here. So I'll pick this It could be on the front right here looking at the review cube. So looking at it not down, but on the side You would make your your thing a little bit different. So let's say we just make a rectangle here and our radius is 40 again and What I'll do is just to center this with the the center origin here I'll shift select both of these and then bring up my sketch toolbox and then from here I'll just say I want a midpoint constraint So now this line is always in the middle of this center origin And then I can define a height here. So let's say I want to do like 90 90 millimeters and Then what I'll do here is I will start sketching out my internal geometry So what I like to do is just kind of Make out the wall that would be the wall the inner wall and then I can start doing this little thing here Where I have a a degree and then I can bring this out like that so now what I want to do is want to make a A sketch dimension here of 135 degrees and Then from here or actually I want to make this right here these two distances should be the same thickness So before and then I can figure out How much of a radius this needs to be so what I need to do now is take a new Line and in the center here I'll draw out my center because the way we're going to extrude this out is not with an extrusion but with the revolve tool So now I can say from here to here will be The internal diameter, which I don't know what it was but I'll just type in a number here and then I'll figure out later and then I needed to find the Height for this little connector bit. So let's just say like 18 and now I have A little bit more sketching to do because I do need to flatten this out. So I'll say I want this Coming out like this and then this straight off like that So you can do that no problem and then this right here the distance between these two will be that same four millimeter thickness and Then this can be whatever height. I want to have so a little bit less than 18 So I'll do 16 that looks fine and that's pretty much how we can do it now So now this blue selected profile is what I'll use to revolve So I can do a revolve right here when you have to finish the sketch Because the sketch model shortcuts here is is accessible through anywhere So I can just type in rev and you want to make sure you pick the blue one here because this is for solids solid modeling All right for axis we are we pick the blue line here or whatever this center line That's kind of why we made it and there is your shape So it's a full one hundred three hundred and sixty degrees to close it off hit okay And I can see we got our Our built-in thing now I've could have of course done something similar here and then done a chamfer But I found when I'm changing the dimensions of your tube and your connector bit The the chamfer will air out because if you ever change that the temper isn't smart enough to know to update the The size of the chamfer so that's why I just built it into the sketch here Because no matter what radius I change now It will update so let's start doing some user parameters. Let's first start off with the thickness Let's make it four millimeters our tube radius or our two diameter rather is 40 millimeters And then our connector bit was oh boy over 13 times 2 is It's 26, so I'll type in 26 here. Whoops Connector I don't know what else to name it. So I'll just name it connector and it was 26 and we can always change this up All right, so inside the sketch I can take that 40 right here and then make this tube diameter The thickness here will be changed throughout so you just say thickness here thickness here Okay, and then I kind of want to change this inner bit here So I would basically say the connector divided by two because of the way we are Doing the radius as opposed to the diameter here. So that's why I put divided by two. You see here. It changed a little bit. That's fine It's really the inner diameter So I can say this Connector divided by two minus the thickness and that'll give me a more accurate diameter Cool, and let me hide this body because we don't need that body right now And that's pretty much how I parametric eyes it. I also want to do the height of the tube. So tube height Will be nice to play with let's do 90 for now and This is just the Diameter of it of the connector. I'm just kind of updating this like tube thickness You can modify these names after the fact, which is very very helpful Do another one and this will be the the connector Height and I believe I had it at 16. Alright, so now I can start pumping those numbers in here. So this is the tube height Whoops, let me undo that tube height I did it wrong There it is and then this right here they the 16 will be the connector height Excuse me There you go. Now it is parametric Cool, and I'll bring back body too because that's really what we used So now I want to come in here and want to change up the the height say I want this to be 150 That goes up there nice and that geometry that we built because it's a revolve. It just it just goes with it Which is really awesome. I like doing section analysis is so I'll Pull up that tool and then just like one of these surf one of these One of these planes and I can get a nice cross section. So that looks really good. All right Cool. Cool. Now the next thing we got to do is make two sets of coils one for this Connector bit and one for the inner bit now when I'm using the coils Let's take a look at our Down here. I want to get a visual of my layout grid You'll notice that this is in the exact center. I built that way on purpose because when you're using coils it can get really funky if you do not have if you're trying to draw a Thread and your model your body is not in the center origin. You're gonna have some problems So that's why I'm kind of showing you that you really need to build it in the center of your plane of your grid So that's why I set it up that way. So let's pull out the coil tool I just type in coil in my design shortcuts window hit okay I'm gonna start off with so that's the thing the tool is kind of weird It's like what do I click on that where you want to click on is the surface that you want your coil to start on So in this case, I want to start on right on this this top surface of the of the tube right before the connector So click on that and you notice that The grid has now changed and updated It's no longer on the bottom of the tube rather on the surface that I clicked on very important And when you click the next click you do is you're kind of defining The origin you notice that it's a square here. That's because it's saying I'm locking it into the center there So you really want to do it that way and then as you drag it out You can either a click or just type in the diameter that you want in this case It's we have a thing diameter user parameter. So it's called connector diameter, right? All right, and that's already there click to accept it It's red because the operations default to cut so you can change that to a new body I want it to be new body because we're gonna actually move it and The next thing we'll do is change the section size now You're gonna want to change this depending on how big your prop is this one's a pretty big prop So I have the section size set to 2.5 millimeters, which is nice and chunky. Next is the section position I want this to be on the outside. Okay a nice side of our little ring here of our diameter that's been defined Next you want to change the section shape that should say section shape, but it doesn't it's just a section So I'm gonna change that to external Right and you can see that now that's starting to look like a coil Next we want to change is let me just bring this out Right I like doing that a lot and then revolution height change that to revolution and pitch because you want to change the pitch not to height So in this case, I'm gonna leave the resolution to three and you notice our diameter coil likes to mess with you So it used to be a user parameter now. It's not so we need to put that back in here. So connector Diameters what we want that seems to accept it at this time in the pitch now our sector size is 2.5 so if we made our pitch 2.5 and notice that it kind of just kind of Eats into itself which I'm not a fan of that wouldn't work well So I add a little bit of clearance to that pitch So instead of 2.5 I'll put a 3 and you can see here now. There's a tiny bit of gap between those two threads there So that's kind of how I want it. You kind of want that gap there when you're 3d printing filament tends to expand So you want to have that little bit of clearance built into your pitch So that's why I do it that way and if you change your section size to three You'll notice that now you need to change your pitch to maybe three point five Or maybe three point six that looks like seems to be a little bit better So that's why I ended up doing just a pitch of three around it off in my section size at 2.5 And that tends to work out really well Again, just verify your operation is set to new body because if we were to join it right now Take a look at where it's being built for what a reason this shape likes to kind of build the thing a little bit under Where your surface is so when you hit new body, you can now have the option to Grab this body that was created use the move tool I hit the the hotkey M M for move and I can just move this up You want to be aware of this triangle here if I turn off my section analysis you get better idea of what was going on So before moving it was gonna just eat into the bottom there not a fan of that So I find it better to just push it up a little bit three millimeters up seems fine hit, okay, and Now I have moved it. You see the move is in my timeline there if I ever want to change it It's okay now. I will use the sketch That I mean the design shortcut window and I want to combine These two bodies, so I'll select this tube and that thread they're joined as the operation Everything else is fine hit, okay And now we have a unified body if I write if I do the section analysis again You can see here that it is closing in on it pretty well Cool cool. All right now what's cool about this now if I change the diameter Rather the height of the tube Because our coil feature selected a surface as a starting point for the coil Now we can update our tube height and it will just go with it So let's say 200 millimeters and you'll see that our our thing is perfectly three millimeters away because it's all just kind of blending It's all kind of conforming to To the surface that we clicked on so that is a really great way to do these coils or these threads Next up. I only need to do the bottom here. So I need to do the bottom Coil so with that selected our tube selected here Let's go ahead and pull out the coil click on that and we want to select this surface The bottom surface of our tube like that and then again, we'll do our Thing now you notice here that I have to change the diameter here. I think what we can do is we can say The tube diameter Tube diameter right and then what I'll do is I'll subtract the thickness But you notice the thickness it needs to be multiplied by two. So I'll put this in parentheses and say Multiply by two and that gives me an accurate parametric diameter for inner coil or inner thread So we'll have to change up some things first thing is to make a new body for the operation For the section size will do the same thing 2.5. So for our pitch It's three and now we need to change up the all again Yeah, the coil doesn't like user parameters as the initial dimension So we just got to go back into this input box and do that exact same song and dance So it was tube diameter not tube thickness tube diameter Minus in parentheses the thickness of the tube multiplied by two All right, cool So that should do it there And then what we need to do is change our position from the outside to the inside because we're now an internal thread So that means our triangular section shape should be turned into an internal section shape Now if we look at it straight down, you'll notice it's kind of hard to see so You're pretty much looking at a perfect Diameter here So the tube diameter minus the tube thickness multiplied by two and that gives us the internal Thread diameter that we did is parametric Again verify. It's a new body hit. Okay, and we need to do the very same thing that we did You'll notice here that it doesn't start at the bottom like we wanted to just the way of the shape So we can take that new body hit the M key for move and then just move it up This one you're gonna have to move up a little bit more. So I'm gonna just do 12 millimeters here And that's pretty much it there now. I can do the combine again Pulling up my design shortcuts hit the combine Hit our tube hit our thread Operation automatically sets to join hit okay, and that is that So Very very cool. So now when we change the diameter of the tube, let's say we want to go a little bit lower like 30 You'll see that the coil updates along with it Right, yeah, it updated with it and because the connector is separate from the tube Um, we can change that up too. So if we want to change the tube or the connector diameter We can say 28 if you want to make it bigger smaller now. We have full control over it so that is how you can Get get the basics of making a parametric Kind of screw fit tube and you can do all sorts of fun patterns on the outside of this tube You can use the emboss feature to put textures and knurling Whatever kind of fun stuff you want, but yeah, that is kind of the core essential things that allow Something like this to be parametric where you can go ahead and change up the different diameters and the different Things oh my god, look at that core or look at that grid looks terrible there Yeah, so that's basically the the main core of making a parametric threaded tube Um, yeah, I really had a lot of fun working on this one. It was a bit of a quick model to be honest There's not too much detail. Um, but man, it is so cool to make something this large That's like two meters long or whatever in a tall fully 3d printed It's really cool to just print to print it in that color Take it off the bed of your 3d printer and it's just ready to go the coil is ready to go no glue No processing no sanding and all that so a lot of fun to do that. Hope this inspires you folks I'll have a link to all these things in the description of this video Um, that's gonna do it for me, but until next time Uh, I hope you have a great day. Bye folks