Fusion 360 CAM Tutorial— 3D Machining- Basic

when you start using can within fusion 360 it's good practice to start out with something simple maybe middle a pocket and drill a few holes but not much time goes by before you need to machine a little bit more complex shapes this video is about getting you started with machining those shapes I'll share my shortcuts to get you started with 3d machine [Music] hi everybody my name is last Christmas and I thank you so much for taking the time to watch this video now if you're brand new to can within fusion 360 I recommend that you go down the description area and click the link to how to learn can within fusion 360 basic series that one will show you how to set up your origin it will show you how to machine pockets and drilled holes in this video we're going to take it one step further and get started with some 3d machining so we're going to machine some surfaces but before we get to it as always I really appreciate your comments and suggestions down in the comment area I know many people read them I can assure you that I read them all and if you like this video do me a favor hit the thumbs up if you don't hit the thumbs down and if you haven't already I would truly appreciate if you will subscribe to the channel now let's get going so first let's talk about the difference between 2d and 3d machining so if I go up and hit the drop down on the 2d you will see we have operations like a facing operation this will let you create like a planner datum on top of your part now if you go down to the 2d contour that will let you machine around your part you can also do something like a 2d pocket and even like a drilling operation would be considered 2d what a 2d operation basically is is that the z-axis or the head that is moving up and down pre positions before your X and your Y or the table on your machine starts moving so Y 3d why is there so many 3d toolpath available in the drop down inside of fusion 360 and if you ever go ahead and look at the geometry tab the settings are a lot different than what you see for the 2d and maybe more important how does a good 3d toolpath look like what are we what are we trying to achieve well to explain that I think we got to do something most guys like to do let's go car shopping [Music] so let's talk about what we want here so what we really want is a tool pair follows our 3d service of nice and smooth so if you like have a look at this take a look at this 2007 honda civic you can see that the outside is designed purely for aerodynamics even if you're looking inside of it you can see the kind of dashboard is all curved and you know that is how most cars are maybe except from jeeps you really don't find any kind of radiuses on a kind all curved surfaces now one of the better ways to look and occur services if you're looking along the side of this car and it's not even a sunny day here in our state New York you can kind of see how the sidewalk in the road are reflecting on the side of the car and that is those different curves along the path that we want polygon tool pairs to follow so there's always bad talking about specific tools and maybe you just talked a little bit on tooling so when you need to drop down menu for feeding machining you will see that the altar here is the adaptive clearing now the cool thing about event is clearing is that you can actually machine with pretty much the full length of the food on your cutter what this does is if you live the amount of step downs you have to do puts a lot of pressure on your cutter now many times people recommend using a bull nose end mill August and the bull nose endo is really just a flat end mill with a little bit of a radius on the sharp point of the tooth and it just makes the cutter a little bit stronger but of course if you don't have a bull nose end mill it's fine you don't have to go out by one you can have to use the standard Mendham now when it comes to a lot of finishing operations you will always use a ball and mill to finish your service machining so if you're looking at the second you here you will see that depth is clearing going all the way now to pretty much the whole flute length and then it was not working its way out and to like step up to creating the shape rubbing out the shape of our 3d contour now many times when you machining things like this you like to use in both the rocking operation cell line and then the disposable semi finger sometimes so after our that's obtained here you will see that I'm coming in with the semis finish operation and really all you're doing when you do so my physics is you're leaving a little bit more stock to leave and then you can make your step over a little bit bigger if I'm assuming any years you can see it's how I get some cusp created between the sepal so of course when we come into a finished operation all they're going to do is we're going to make step over smaller and then you will see that it can clean all that out of these beautiful ending circus now many people ask me what is the right amount of stable well it comes down to two things it comes down to how nice the finish that you need and how much time do you have the fact is that the smaller you make the step over well longer to the picture machine I remember when it comes to being speed I always recommend that you use increased speed from Cuba varna that you bind and from that is always the best so let's talk about you okay did you hit the drop-down in 3d machining is out you should be sixty you will see that there is a lot of this attached to essentially Pro now today I will give you the three that I think you need to know about it I think covers most of service machining that it is used so if look at this model here you will see that the crema tallies what we want to machine this part here is kind of horizontal grass is very like nice curve no crazy deep mountain peaks from this one here just here we use what is called a parallel to okay now you can almost say that B slope has the simple car so you could say that this is how I am midsize pretty standard car nothing too crazy and he will perform nicely going across surface and of course here the truck head are assembled with the blue line recognized on Hope Valley we explore the modeler movement you will see to get more green metallic services and some of them are really steep well here the parallel cut off midsize cars how to stop spilling on us a little bit you will see on this vertical wall we don't even get any blue lines and always here well the tool that is doing a little bit of a funky move and this will definitely need material that these machine as an operation so for these kind of people scenarios you might want to upgrade your midsize for something whether they were both four-wheel drive maybe so here we're going to go to the console tools now now when we apply the concerts over here look how nicely it does off the vertical surfaces it kind of goes in the reverse direction of parallel but it does a really nice job not very unified going all the way down on however when we looking at the chop all our pattern of our song portion suddenly the contour is not doing so well here and on this side it so you know honestly what we've been doing in PHP for the last I don't know 15 20 years is to combine the two so many campaigns don't accept that that you will put a hello on top and you will put a contour on the seat wall and let's get a pretty good result the other thing you get is a little bit of a blending issue between the two but you can work with that with some of the other finishing toolpath that exists in the drop-down play around let me just expand the model out a third and last time so that we really have a mod here with a lot of curves different shapes blending together and then absolutely I want to show here is almost the best of the true world and that is the scallops rule now what is neat about the scale of children is it really takes the outer edge of our model and it's kind of collapsing it's just the center of our part so if I simulated you will see how the tool is kind of collected from the outside towards the center of the public is this really nice unified type of tool so here you have the three different tool paths you got your parallel your mid-size kind of like going over some of our some nice service you got your contour that is really good where we kind of like go more steep angles and then play around with a scallop and see if you can get a good unified between that event is the type of service that you need to machine alright let's tighten up on the hood was a three-d machining setting so to machine the green metallic service on this model we will go up and hit the drop down from the 3d and we are going to select a parallel cut now just like when you're doing 2d tool path the five tabs in the options for 3d tool path are the same so you don't have to worry about that so that means that the first tab is always where you select your tool and as I said earlier we will go with a ball and mill for this now here's my first rule whenever your machining a 3d surface within fusion 360 select your tool but then hit OK I know you have not been intriguing any settings yet but we don't have to start out with just hitting OK and see what the software gives you as you can see here one of the major differences between the 2d tool path and 3d tool path within fusion 360 is that in a 2d tool path you will pick all the geometry to be able to get something to machine but in 3d machining it has already been selected what we're going to do from here on is we are going to adjust the tool path so that's why I just select your tool and hit OK and see what you get now when we're looking at this tool path we can see that the parallel again is not performing great on steep walls you can kind of like see these blue lines then I have some some big dips to them and major step over between them that doesn't mean that parallel is necessarily a bad tool pad for this one actually if we rotate it 90 degrees it would actually be pretty good so I'm going to do that by going back into the parallel I'm going to right click and hit edit and now I'm going to go over to the passes hab and here you will see that I have a pass direction so if I change that from 0 to 90 and hit OK let's see what we get now and that is probably the best advice I can give you when you're working with 3d machining within fusion 360 only change one thing and then hit OK and see what you get and then go in and change again don't go in and just change a bunch of things because it's hard to figure out exactly what is happening so now you will see on the metallic green surface makes a has a very nice machined surface right here but we got to talk about selection because we have just right now selected the entire pile and we actually just want to boundary within the green metallic surface so how do we do that well let's get into our geometry tab so I'm going to right click and hit edit and go to the geometry tab now I'm going to start from top kind of like working my way down showing you the things that you need to be aware of first of all your machining boundary is set to silhouette now let me just go normal to that top surface here so we're looking down at it that is what silhouette means what Fusion is doing it's almost like casting a light from the top down on your pot and anything this light hits it is going to machine now there is some different options in the end we'll get to those in a second you will also see we have tool containment so what we can do in here we can control how our tool is going to behave within that silhouette so you can set here tool to be on the inside boundary that means the tool will not move past that silhouette that is being thrown on your model we can do tool senator boundary that's what we have right now meaning that the center of the tool is allowed to go right up to the edge of our part and then the last one is outside boundary what means we let the tool going past it now I don't use outside boundary very often I'm just going to leave it on tool Center boundary so the first option I want to show you to how you can contain your tool pad is going down to the bottom here where you have an abhorred top surface see right now when we are casting a silhouette on top of the top you will see the Machine the whole entire pot but if I check a board and I check these two surfaces here just select these two and hit OK you will now see our tool pet is not touching the top of our pot anymore it has now been contained within so it's not allowing touching that area that is one way to control the boundaries of the tool path another one that maybe is a little bit more preferable so go back in and edit the tool path again and I'm going to go back to the geometry tab I'm going to unselect those two phases I'm going to unselect a more top to make sure where we were before just resetting back you will now see again the tool path of touching up on the top where I don't want it to be well if you go back into the geometry tab instead of using silhouette we can use selection now when I hit selection and I hover over my prod you will see that the software is trying to pre-select the chaining for it but I can't really get only that metallic flake it keeps on selecting one of the top faces up there but of course there's always a way around that instead of fusion 360 I'm going to select the wrong chain here and you will see that I get this green boundary box well if I select that boundary box again turns your ad and now I get the selection managers just like you can do live in 2d so now the blue edges is what I need to machine so I'm just going to go ahead and select them and now you will see that I have defined that area within I want my tool pack just remember you have to hit this little green plus don't hit enter it's a little green plus down here to get it to stick and now you will see that we actually get that and when I hit OK now so if I go ahead and simulated you will see that we have a nice parallel tool path and it's only going up right through that edge of that surface so if we take a look at the simulation here of our tool you will see that our ball end mil is touching on the side here but what actually happens when it comes to this edge it actually continues right up to the center of this edge here because we use tool boundary Center there's actually another option in here that you need to be aware of let me go back into the parallel tool path and we go to the ARMA 2 tab we selected our chain we have the tool Center on the boundary that's why we see it going right up to that edge but if I select contact point boundary the software is actually smart enough to know where it is loosing contact with that service and it will stop there let me get ok and show you what I mean with that contact boundary selected you would like to see that the tool paths finishes right when the ball end mil is letting go of that edge so just be aware of that that setting is in there in case you don't really want the center of your end mil to hit that edge so let's bring up our model from before and go through these settings step-by-step so I'm going to go up and select my 3d tool path I'm going to the parallel again I'm going to go ahead and select my ball end mil and then hit OK because I really want to see what the software comes up with before I go any further now I get the right direction on my tool path this looks pretty good but you will see that because of my settings I'm not machining the full depth of the green metallic surface here so let me go ahead and edit that so we can take a look at what we have in the geometry tab so the reason for that is because our tool is sent to center boundary now let's turn on contact point boundary look at that will actually override the tool Center on boundary i'ma hit OK and you will now see that my tool path is going past and all the way down to that edge but it's actually going a little bit deeper than I want I don't want it to touch this surface and I don't want it to touch this surface so let's go back into our setting go to the geometry tab and select avoid surfaces when I select this surface and I'm going to select this surface let's hit OK and now we have a really nice surface where the tool will come down right to where it's touching on that edge and we'll go back and forth this will give you a very nice 3d surface now the last tip I want to leave you with here is for the scale of tool tab remember that I said that it kind of collapses from the outside and in towards the center of the pod and really creates a nice step over but there is a very powerful tool in there now if I'm going to go out here and take a closer look you will see that we get some interesting bumps in this corner here because it's collapsing from the edge towards the center and the software kind of had to make some calculations there you will also see if you look up on the top here of the handle you will see it is collapsing in here kind of like a left up with two kind of islands right here or eyes looking at you and the space between here will probably lead a little bit of material that's a very neat way we can work with a scanner tool path because it's collapsing from the outside in we can actually create sketch geometry and then use that as the edges that collapses in let me show you what I'm talking about I'm going to go over to the model side and I am going to open a new sketch on the backside here now you could hear just creating some lines some are even some splines but I'm actually going to do is I'm going to offset the command I'm going to just hit the S key here and hit offset so I get the offset command right here and I'm going to grab this edge and just stop dragging it out now notice this area right here see how that is kind of like curved in well because I am offsetting it out I can actually eliminate that whole adds pretty much if I just go far enough out right so now it's a line and it doesn't have that development because that development is what's going to lead to collapse so I'm just going to move out here so let's see that it gets straightened here you will leave less for it to collapse and I'm going to hit OK I'm just going to stop the sketch I can show the sketch so we can actually see it and let's go back into Pam now of course right here we're getting a some red marks because we just updated the geometry of the model but what I'm going to do is I'm going to duplicate the one we already had and then I'm going to go into the duplicate of the copy I'm going to edit it and you will see that when I go over to the geology tab instead of using silhouette I makes it going to again choose selection now I'm going to select my sketch geometry and you guessed it right when I hit OK now the collapse is coming from this sketch geometry choice the center of the park and not just from the edge so what does that do it creates a different type of collapse in these areas here and you will see up on the top we now have a clean cut back and forth so be aware of you can control the scalloped toolpath with all the geometry controlling how it's going to collapse in so just to point back here we can see this edge here and when I hit the scallop you'll see that we now kind of different one now you could change the sketch geometry a little bit play around with it and you will get different result but that's an important thing to know about the scale of tool paths so I'm going to leave you with this I know we did not cover all the options within freedom machining but I believe that this will give you a good starting point to venture down that path also remember that when you're sitting with your model it's going to have some different services meaning you're going to get some different results and when you get a little confused or maybe a little irritated come back and re-watch this video to kind of like get reset of the basics of 3d machining now you let me know on the thumbs up or thumbs down leave me a comment below what you think of this video and if you haven't already go and click the link to get your free C&C handbook there's a lot of great stuff in there so until the next time have an awesome day [Music]

Channel: Lars Christensen

Views: 74,363

Keywords: Autodesk, Fusion360, Tip, Tutorial, Beginner, CAD, CAM, CNC, Lars Christensen, Fusion 360, Autodesk Fusion 360, design, engineering, CAM software, Computer Aided Manufacturing, Manufacturing, Computer Numerical Control, Machine Surface, 3D Software, Free CAD

Id: n-Pgk33W8N0

Length: 26min 7sec (1567 seconds)

Published: Thu Jan 26 2017