Gear Hardware Tutorial

okay so now that we've gotten this far with these gears I'm going to show you how to integrate some hardware and put these things together so you can use them for all kinds of different kinds of projects this is just an example this is the one in the instructable they'll be linked below it's it's this little hopper with a bunch of ping-pong balls and as this as this gear turns and indexes it it's like a little trigger that pushes them out of the out of the hopper so it's just kind of a silly example you know some some something fun you can do with it but um this kind of mechanism you can do all kinds of different things what I've done here is I've added this little this little driver so you can actually put a the the hex end of a of a drill into this and any standard drill will work this is going to be in the file it's also linked in the instructor wall if I turn that off you'll see here there's like a little cap right there and then that cap is holding a bearing onto this base so and I'll show you how to do all that stuff so basically the big idea here is that you can you can use some really simple hardware and some skateboard bearings to put together a lot of different kinds of mechanical objects and I'm gonna keep making more stuff like this you'll be able to download and use yourself so just starting here this is we've already figured out the mechanism and how it's supposed to work so this this is working just fine I'm gonna put these back to rest and that looks pretty good that's like kind of a reasonable place to start with all this stuff it doesn't matter so much but you know it's this can help okay so I know I'm gonna use a skateboard bearing right so to do that I'll go to insert mcmaster-carr component and the number for that kind of bearing is 608 ZZ so I should be able to just go here to the search bar and type 608 see and then you'll see here open bearings and then it should be the first thing that comes up probably you're gonna want to find one that's got this little cad icon there that means there's a there's a 3d model you can download for it so I think that first one is probably fine the ones that aren't lubricated tend to spin faster so you might want to find one of those anyway you go down here and then where it says save make sure this is set to 3d step and then save and now this parts gonna come in so it comes in by default at the origin and that's fine for now so what I'll do is we're gonna take this gear and this bearing that's just the the part number usually I do something like this so you know what you're looking at right um robin twice somehow that's weird oh I see what happened it's cuz I doubled it up for some reason anyway um so there's the bearing there's the the gear so I'm going to select both of those in the browser right click and isolate so if I look over here I should be able to see just those two things I don't want all that's got other stuff getting in the way I'm gonna start by aligning this to the to the gear to the center of the gear it's already aligned to the center but it I want it to be flush with the bottom as well so I'll click align and then any one of these circles on the bottom surface of this gear so I'll go with that one and then I need this one of the circles that corresponds to the the center of this this gear so I could you to pick that the pitch diameter the green line right there this outside doesn't really matter that's gonna move the it's going to line that component see right here components line that component with this so now that's I know that's in a place that is useful to me click OK and then I want to cut that shape out of the bearing out of the the the gear excuse me okay so what I'm gonna do is go to spur gear the 24 teeth one activate and then I'm gonna do create a sketch on the bottom capture position because we don't want anything to move then I'm gonna project that the outside the the outside perimeter of that fair okay so I will go to project include project in this case I want to use bodies here not not specified entities that'll work but like I'm gonna have to pick a bunch of different stuff here and I'm not really sure because I can't see which line I'm clicking on so it's safer to just go with bodies then you'll see here it's just gonna let me pick a body and it'll project that whole thing so I can click and hold and it's gonna give me a list of stuff that's under my mouse right there so I want to pick this one that's the outer body of the of the bearing click okay then I'm going to extrude that profile and that profile and that might as well just get that whole thing and extrude it so that turning bodies off here turn that component off I'm going to extrude it to where it hits the top so we have distance to object and then I'll pick the top here okay turn my component back on and sometimes this gives you an error so if you just go with distance it'll automatically fix it and you'll see it's cutting through the gear but I don't want it to cut through the bearing right you see here that bear is cutting through all this other stuff in the bearing as well so I could in objects to cut uncheck all those things that are part of the bearing component or I can just turn this off and now that's the only thing so turn it off in the browser that's faster click OK now I've got a cavity in this gear that the bearing will fit into okay so that's good go back here to activate to the main component I'm going to turn this one on and then I'm gonna copy this bearing over to there as well I did another one right so copy paste then over here in the copy paste I can go point to point and then click any circle that corresponds with the center axis of the the gear click that and then I'll go over here to the center there now I see it's it's moved to its proper place right in the middle that's good okay so same thing with this 12 to 4 it included project with the body selected click on this ok extrude take all those profiles turn this off distance to object to the top back to distance so we avoid the error let it cut through turn the bearing off there we go so if I turn the bearing back on we should be in good shape now so now I've got both of these these um gears are now designed so that they fit with this thing now there's another problem here if they're pressed fit in there the the diameter of this hole is small enough that there's kind of a roof inside here that's gonna that could rub up against the bearing so we want to make that hole bigger so I'm gonna go here and I will go to the top and I'm gonna pick on pick this presspull click that then I'm just gonna move it until I can see that it's giving me some weird values here then go to the top view and then the way these bearings work there's a there's sort of an inner ring and an our outer ring right and I want to move this I'm gonna press pull down there we go then we get a error happens sometimes save that for now open it again didn't like that for some reason and I got a crash so opening fusion again it saves recovery files they'll come up automatically in a list but um if if you don't see the recovery files for some reason you can always go to the file menu no he'll show up in there and as usual it opens up pretty quickly so I'm going to go gear example open want to lost a little bit of work there but it's probably no big deal yeah okay so I'm gonna move that bearing over again okay so anyway line this to this enter let's turn that on and just copy paste kind of changing up the order a little bit doesn't really matter the end result be the same I'm taking notice I pick the edge not the not the middle part right there I'm picking that edge that's a that's kind of a a circular edge that a circular edge whose Center is on the center of the bearing right because I drew that circle from the center okay so those are both in place where they need to be and then what I was trying to do before was to open that up so that it fit that bearing but for now let's just go back to our each one of these activate their p4 project with my bodies need that middle one there any better turn that off just Vince to your object to the back here activate that one create sketch click on the bottom P for project click on that body okay food for files that need turn off the gear just things to object top back to distance to avoid that glitch turn off that bearing so it doesn't cut through it okay are you back on save so I don't lose any more work okay so we need to make that hole bigger so that it exposes this part of the ring on the top we need the ring to not be rubbing up against the top of the gears it needs to move freely okay so I'm going to click on this then press pull and hopefully even look at another error here so it looks like it's trying to give me this this works sometimes with yeah so it's gonna be a negative value and let's just give it a value let's say minus three you can see what we get there's obviously different ways to do this I can make a sketch on top and extrude that I'm just showing you a different method here maybe a little easier and that's fine so five looks like it's plenty because I can tell by looking at this that that that part is going to be exposed so that's good enter and I'm gonna look over here and I'll do the same thing so I'll press pull and I know that value will be the same because it was the same when I made the years right so it should give me a hole that's big enough there as well okay so now I should be able to 3d print these press a gear press press the bearing in and they'd be ready to go but they need to be connected to the base and the base should have needs of a way to like if we really want these to be sturdy if you look at the the video demo of this thing in action when you're putting a drill up to it like you it really needs to hold together so we'll talk about how to do that now all right so if it's sitting on this base the first thing is the the bottom of the gear can't be touching the top of the base right so let's first press pull the top of the base by minus one just give a little room in there okay so that's gonna need to happen for sure next thing I'm going to do is turn these off this is we're just gonna get my way right now I'm gonna activate the base I'll make a sketch and now I'm gonna draw myself some little posts in here that I can use to to stick these bearings on to so again I'm gonna do the p4 project one project that and so those are the two parts of the inner bearing those are going to give me everything I need right so first I will go extrude that one and that one and I can just click that thing up on the top it looks like it gives me eight I want to go quite that high because I need a little cap that's gonna screw onto it hold it together so I'm gonna need a little barrier a little bit of a gap in here so I'll pull this down make it like five that should be okay sketch disappears because that's the first geometry I made from it so I go back to my browser here turning the sketch and then I'm going to extrude extrude I want those to go up to the bottom of the bearing here so I'm holding my mouse over and hold click and hold until I get that face and then back to distance cuz there's some glitch right now so they'll fix that soon okay so now I have this little platform that's gonna hold the hold that bearing off of the bottom of the base to let it spin freely so if I click OK you'll see it's like it's like a post with a little a little platform on it right it should look like this cool okay so turn those back on and then the other thing I'm gonna need for the base is a is a cap right so a lot of different ways to do that I'm gonna make a revolute I'm gonna make a to make that shape so I'm gonna make a go construct I got to get myself a plane right let's see if I have an Origin that should work so I can use that origin plane right there clicking on that first if I click create sketch it'll just give me one right there now I'm going to intersect so the project include intersect and then bodies again I'll click that so now I have the shape of the part of the bearing that I need to to screw on that I need to fix to okay then I want to project again that's P I'll project this so I know where the top of my um my post is on the bottom I need to give myself a little gap so I can screw it together and like really get a good fit so I'll go to line give myself center line from that midpoint up like this I'm gonna use an m3 screw so I'll draw all the the size of the hole right now in the thing I revolve you know what I won't do that right now I'll show you a different way to do that okay so there's that and then I'm just going to draw a really simple cap like that and then let's make the height do with d4 dimension like this and I'll give it a real dimension 3 that should be fine stop sketch now I've got a profile I can revolve so create revolve take that and that axis it's this and I don't want to join it and I want to join anything I want to make a new component on the base ok and now you'll see I'm another component I'll call that the cap and then that I don't want that the bottom part to touch like that so I actually need to go here and minus one press pull just need enough to Center it right turn bodies back on I should see a gap that's good that's what I want okay I'm gonna need another one over here so copy paste then I can go from point to point from anything that's gonna give me the center of that circle right - anything else that's going to give me the center of the other sir yeah it's another the same height offset and they're in their proper place and the copies are the same thing alright so I know this is going to be a screw I'm gonna use an m3 and I'm gonna measure this so that's the top and if I shift select the bottom I can see the whole distance is 16 millimeters so I may need to screw that fits within that right so it should be 16 millimeters when you include that the head so let's go to insert a faster car screws socket head metric and three that's a three millimeter diameter one the distance the whole distance here is for this kind of screw is there so 60 it's gonna be whatever that was time like plus 16 plus the sorry it's gonna be less than 16 so I think I'd probably want to do a 12 I think that might give me the whole saying I'm click on 12 and just pick this first one here product detail no tell me how tall the the head is 3 so 12 15 that's fine less than 16 that's okay alright so that's got to be a step file as usual save it's gonna bring in that component for me and then I want to rotate this around like that because I'm gonna screw it in from the top move that down and then I'm going to go point to point to get the center of this thing on the center of the bottom so I'll go point to point from here to here click okay pick that if I look from the top this should look like it's centered and it is that's good okay so now what I can do is let's just keep it simple for now I'm gonna combine capture position I'm gonna combine this and this cut and keep tools because I want to keep that screw again you combined this this cut keep tools ok let's look at this on its own right-click isolate because there's going to be some junk in there we don't need so I will extrude this part all the way up cut and then the same thing with the what's this extrude this all the way up cut and then it's given me this junk in the middle I'm just kind of doing this quick and dirty right now I mean if you want to be really you know really be careful about it yeah actually let's let's be a little more sophisticated about this so I'm gonna go to the top here with that and then I will project the body that is this thing right here so I get the whole screw okay and then I'm gonna need a little bit of wiggle room to get that screw in there so I'm gonna go sketch offset that by 0.05 because I know that works then I can extrude this and this and turn off my screw and go down to where it cuts all the way through but whoops so I want to go down to just hit the down arrow to that point so now I've got a nice cavity for the cap and ice cream that's good um you don't really need those threads in there actually there's probably technically speaking that should be a bigger hole you shouldn't have the threads on it but it doesn't really matter cuz it's plastic and you're just gonna cut through it anyway so that should give you what you need for the cap and then I'm gonna right click on isolate I want to see all the other things so now the caps are cut out and I need to copy this screw over copy/paste want to point from here to there combined cut that and that two tools now I got holes in the bottom and you can add nut pockets do that same process I just did and you can bring in a nut put it down on the bottom project it cut that part out the same process we did with the screw through the mcmaster-carr and then you get a nut here there it doesn't really matter it because these are going to be about the same size actually back to the nuts hex nuts or what we want and you're going to be metric in three and then you just get this first generic one here three-step save move it down like that and then we're going to go point to point these have circles built into them which is convenient so I can click that it's an edge of a circle that corresponds to the center then that one that will put it in place and then I can take that and copy it over copy/paste capture position point to point from circle to circle make sure you get the ones that are on the right level like that otherwise it'll jump and move somewhere else weird you didn't expect and then I can do create sketch on the base then I can project p-put the bodies and get that nut and that nut and then you can click and hold so you get the body you want stop sketch then you can extrude this this just pick those profiles turn off the bodies click on the distance to object to the top of that nut back to distance turn bodies back on and then turn the nuts and the screws off so should just cutting through center you see there's a weird thing left over that's because of a cutout with some leftover weird weirdness but whatever you can just get rid of those both right click and then remove don't delete because that that sometimes can ruin your your history so pretty much always want to move and then you turn the bearing back on and the gear back on and back here nice today and now you've got if you let it go to appearance and just change the the gonna make all the things white that are 3d printed so you can see the difference so really it's just the nut and the screw and the bearing that you buy and then everything else is 3d printed and screwed together I'm not going to get into the all the little details in here like how to do bevels and all that stuff you can look at my other videos and Instructables to figure out how to how to make this a little smoother how to make it easier to touch you can interface these with other things like I did it with this example file here this I made this little hopper for the ping pong balls trigger and all this stuff that there will be in the instructable you'll be able to open this file you can download the archive and see everything and kind of look at the history to figure it all out but this is just an example to show you how to integrate hardware into 3d printed parts and like I said this is gonna be the first omitting so come back and check it out

Channel: Jonathan Odom

Views: 6,422

Keywords: 3d printing, 3d modeling, autodesk, fusion 360, mechanical, machines, machine, robotics, hardware, bearings

Id: Ey6KGA9ngIM

Length: 26min 21sec (1581 seconds)

Published: Fri Sep 08 2017