Comparing 2D Adaptive & Flipping a Part! WW172

hi folks we need to make this heat sink out of aluminum relatively simple part so why watch this video well three reasons number one we're gonna compare adaptive tool paths which is faster a quarter-inch tool or a 3/16 inch tool number 2 we're gonna talk about getting this fill it looking really nice as we walk around that edge and number three if you're always wondering about flipping parts over to get that second side or third op done precisely we're gonna dive into that as well welcome to our Wednesday widget [Music] cutting up some aluminum on the DeWalt saw again we love this salt and we love the plate that we make for it it helps make reliable cuts that are safe pretty free of burrs cold to the touch it's a win for us we need to set up two tools for this job the first one is this guy so what is this guy it is a lakeshore carbide corner radius end mill go to lakeshore comm and click corner radius and mills - flute 3/8 inch and this is the one with a 60,000 US with the ball interval as well but we get much better tool pass out of this corner radius end mill and the other tool we've got to set up is a three and a half millimeter drill we really like these Hoyt bins tormach actually has a really good price on these they're a little expensive but boy I don't regret buying them once you've got them they are great to have and to organize your tools if you notice that set screw looks a little different on our video speeds and feeds the basics getting started we talked about we're placing that set screw it's one of the best upgrades you can do to your TTS set screw holders 3.0 8 5 touchscreens are a must in our opinion on the tormach it's not only faster it's actually safer in my opinion when you're using a keyless chuck or an Albrecht at style chuck you never seek the drill or tool all the way at the bottom because as you tighten that chuck it wants to pull it in a little bit so you need to allow for some room for that tool to travel 5.4 31 after about a year in the works we're getting up content on the NYC CNC comm website under what to buy tormach PCMC we've got an excel file free that lists all of the recommendations and advice including these racks that we really like to hold tools we modify them a little bit but check out that list to find out these they're relatively inexpensive and it's a great place to store your tools I still do all my fusion programming either on my laptop or at home or on my desk but it's great having a shop computer you into your final looks final setup sheets and post out notice our work coordinate system top-left post [Music] all right using the hi Mertz find rz0 and then what kind of come over and find our x and y and again the touchscreen is what makes this so easy today set between your units first up is the superfly we're just taking a quick skim cut here 2500 rpms about 15 inches a minute we're gonna push it harder we've been experimenting with how do you get the best material removal rate and service finish I bet we need to tram this head in we're not quite seen as gonna finish as we've seen before so stay tuned that's another video we want to do is maintaining and tramming in your clock to the adaptive shear hog all the RPMs you got 10,000 of them 60 inches a minute that's six thousandths of an inch feed per tooth point one five inch width and point one five inch depth of cut that's about three point eight millimeters with the cutting depth of cut at about 1500 millimeters per minute for the folks in the rest of the wool time out we've got our traditional three flute quarter inch end mill the task at hand adaptive out this slot which is 0.314 6 in diameter it's about 8 millimeters what do you think is going to be faster a quarter inch tool or a 3/16 tool any guesses so we threw the time up here the quarter inch tool took 2 minutes in 49 seconds one of the reasons we want to do this test is that the machining time infusion is a great tool but it gives you a relative time meaning the machining time isn't always going to be correct on certain machining option in this case the problem is the acceleration and deceleration of the machine fusion isn't even close to being able to take that sort of thing into account what you can see from fusion is that it thinks that the quarter-inch will be faster for three seconds relative to the 2d adaptive at a minute 22 the opposite ended up being true we we broke the 3/16 tool which you're going to see here in a second but we ran it again to confirm that it ran in a minute 52 seconds almost a full minute faster and the difference is that with the smaller tool it's able to make longer moves where it's able to spend more time that maximum speed rather than smaller moves worth spending more time accelerating and decelerating and in fact it may never accelerate to the desired feed rate our 3/16 recipe 10,000 rpms 40 inches a minute this is the recipe that we used after we broke this tool which you're about to see and it was much more reliable and so why did we break this tool for possible reasons the tool broke number one too much width of cut or optimal load or radial engagement number two poor chip evacuation number three if the part itself got hot number for lack of a coolant blowing on the part providing a lubrication whichever one it was it was a result of the fact that aluminum is gummy and you have to evacuate the chip and if you don't it will start to chip well and that's what ultimately happened here so we do like using these tools a lot of times we are able to actually squeeze the aluminum chip and have it sort of peel out and not damage the tool but we need to take a closer look because a lot of times you are going to compromise the cutting edge of the tool was it damaged or is there some aluminum left that could be a built up edge that will cause it to chip weld again more quickly so three ways to do that the most inexpensive way is this link here this is five to ten dollars on Amazon it's a 45 X pocket loop just absolutely great the two better options are this which is a little USB bench not microscope which I really like it's about a hundred dollars or you can go up to a big boy microscope this is about eight hundred and nine hundred dollars let's take a look though the benefit of this one is it's easy for me to show you guys on a screen and it's what we've been using everyday for example trying to read this boring chip that came off to get an idea of how the chip formation and the heat is take a look at the quality there's a tiny piece missing on the very corner of that flute but the other two flutes are pretty pretty chipped away you can see the hole you can see the edge of the corner is missing right here and likewise this one is missing but if we roll the tool over and take a look you get an even better idea of how the how the carbide fractured I'll be honest a lot of times I'm able to recover the tools a little bit better than this I did let this one chip a lot of hair longer and sometimes you break it when you pull the material out now do we need to replace this tool yeah we do you could probably put it back in the Machine and I bet you it wouldn't be that bad so if you were in a pinch right you're only two left eye you know this isn't beyond total failure especially since we're leaving some stock to leave in this adaptive but we're gonna replace it so we need to rerun this adaptive and I don't want to waste all that time model sketch create sketch I'll pick this plane right here now I need to hit P for project to project that floor in that's because we have a setting changed under preferences which is to not to project our sketch that's how we enjoy using fusion if you want to see how we do our preferences go to NYC CNC comm click learn a fusion 360 and we've got a whole variety of future 360 tutorials and under are getting started with fusion 360 we've got our recommended preferences and settings video that walks through that so now that I've got that sketch I'm going to toggle off the component visibility just so you can get a better idea and what I'm gonna do is hit L for line and sketch the line that forms this box D for dimension and looks like the calipers show it's about 0.5 6 inches so we'll just round up to point 6 5 that gives me an area that I can select as our stock so take a look at this go back into cam that adaptive right click duplicate and a rename a temp that's what we do in our shop just because if we save this file run it later we want to make sure we don't normally run that up right click Edit and under geometry stalked contours delete what I currently had selected I'm going to pick that box see it's tricky to pick so let's do this let's hide our component and let's try that again you know what I think we've got to edit that sketch to delete the other items doesn't like the mix of projected and sketch the lines I'm gonna right-click on that sketch edit sketch and this isn't something I really want Autodesk to improve which is you right now I can't delete just a portion of this purple line the technical term is that it won't accept partial projected sketches in other words this purple line is linked back to this solid model which is cool because if I have to get the solid model the purple changes but I want just sort of a portion of the purple and if you notice I go to sketch trim I can't trim it right now so what I've got to do is select everything right click break link not a big deal here but now it's not parametric which is a bummer but now what I can do is sketch trim trim that away I lost that bottom line no big deal I'll put that back in now I want to lock that in place so I'm gonna drag a box around everything and choose fix it'll go green which means I can't move it toggle my component back on I was going to say toggle it back on to make sure it didn't go anywhere but that's uh that's exactly why we do that huh look at that interesting so let's do this before we delete the stuff let's fix that and see if we can trim it now interesting looks like that worked stop okay now it's in the right place and it's green I can't move it around great go back into cam pick that so we've got these two chains selected the red line here in the red line here so it sees all of that area as geometry for the 2d adaptive but what we've also done is told it hey you only have stock meaning material to work with in this new rectangle right here so that's what it focuses on it says hey I could do work everywhere but I'm only going to do work for this material to remove so we click OK now it's gonna run our tool path just in this area here obviously that was a fair amount of work for what was only a 45 second operation but this could be a really big deal if you've got a long adaptive and you need to stop it midstream [Music] after our adaptive czar done we do a horizontal cleanup to clean up that floor and then remember adaptive is not a finishing a strategy so we're using 2d contours to walk around the slots the profile and the overall outside of shape of the part [Music] spot drilling for years I spot drill way too slow we're using carbide spot drills you can push them down pretty quickly this was 150 service feet per minute or about 3000 rpms and plunging it to 24 inches a minute which is eight foul drilling at 5,000 rpms which is about 180 surface feet per minute and that's my general recommendation when you're getting started with a lumen or even steel is somewhere between 100 and 200 surface feet per minute and we're feeding in about eight thousands of an inch per revolution or about point two millimeters per Rev so here we go walking around this part to get that edge fill it I spend a fair amount of time at playing with this tool path and it's a great example of one where you may just want to copy and paste it into your next file to avoid having to figure out over remember all of these settings or you can put it in as a template but again we're using that 60,000 mil and under geometry we don't have anything selected as the machining boundary we have chosen to use slope we're adding some model surfaces so this goes back to last week's fusion Friday we're talking about how we use the passion vironment to get a better tool path we're using touch surfaces and most importantly we're using contact point boundaries that contact point battery is the biggest differentiator take a look I duplicate this and on the next one I turn it off as a demonstration you'll see how much different that tool path looks you see how it's making these odd motions and remember you want a tool path that looks smooth that looks like the machine is getting able to handle it in a very fluid manner and this turned out great I was really happy with this quality of this edge we finished all of the topside we need to flip our power so take a look when we did the top operation the stock was three quarters of an inch high and it was offset 0.02 inches from the top so it looked like this and you can see the point oh two inches of stock at the top we need to flip our part and I want to try to maintain accuracy so I want to stack the deck in my favor so rather than worry about whether our stock was exactly 0.75 inches in the real world here's what we're gonna do we're going to use geometry that we made in this case this face right here we can rest that on the top of our jaws so what I want to do is set that as my z0 now it's still important that we model our stock correctly mostly so that we ensure we take the correct numbers of depths of cut so I've got the same thing 3/4 vintage high stock and I've got it set this time as point offset from the bottom of 0.02 inches it's actually not super important to have that correct because again this won't affect our accuracy so much as it will affect us making sure that our facing cut takes the correct depths of cut we don't overload the tool how did we get that coordinate system on that point hop back into model sketch create sketch I'm gonna create a sketch on that plane P on your keyboard for project I'm going to click that plane once notice I'm not clicking the line or the line here but rather this plane and that projects every piece of geometry on that face or plane onto this new sketch we just created click OK now I'm gonna hide my component to make this easier to see that projected sketch you can see I've achieved I've already got the point there but let's recreate it alpha line draw a line across now this alone is enough but if you weren't sure you could draw in another line here letting a snap to to confirm that that's the intersection you don't need that because again fusion can detect what we'll do here say point I'll put a point in the wrong place and then use a midpoint constraint so I'll click midpoint click the dot first or the point first and then click the line it snaps it to so that's a sketch point that would work I find it's easier often to say construct point at vertex and this creates a piece of construction geometry that's a point so again the difference is at that point we just made lives in this construction point world not in the sketch world so if I turn the sketch off but turn to believe that point on you can still see that point in there just a little bit easier fusion tends to like construction points in my experience so hot back into cam and under the bottom operation edit selected point ironically it's called a sketch point but it will accept the construction point as well so again I'll make sure it's turned on in the cam environment pick it everyone so I've had fusion act funny on me so sometimes well it doesn't want to pick that point so click another random point not what I wanted but now I can go back and choose the point that I actually wanted so I'll make sure you click point here first select that and if I look you can see it's got that point selected in the middle of my part right on the plane that I want it to be on now I don't really care as much about the XY position approximate is fine because all we're doing here is we're facing it and once we face it we'll have exposed enough geometry to where we can better locate our XY 0 and do an outside champer [Music] pushing the superfly a little bit harder here the same rpms but 28 inches a minute with 70,000 time [Music] so we've decked it off and what that's done is it's exposed our edges so we can now use those edges to locate the XY of the part accurately so let's set up this last operation go right click on my bottom and say duplicate and we'll rename this bottom chamfer so what I want to do is walk around that part first though let's set up our coordinate system in our stock we don't have this big chunk of stock left anymore so I'll go to edit stock and this isn't that important the quick way would be relative size box no additional stock that's going to give you something a little bit closer but really that's not accurate anymore either because we don't have these corners here I honestly don't worry about that at this point very much all I care about is walking this chamfer around so I'm not relying on the stock as fusion sees it one other option that it would be a little bit more accurate would be to edit stock and to say from solid and I could now pick that click OK either way what I want to do is go back and edit this and edit my work a coordinate system so because we duplicated the prior operation it's still located right here now the Z is ok we could leave it there because our part hasn't moved but let's move it to the top plane just for the sake of exercise and practicing how we flip parts click this X here to delete our existing the work coordinate location and I'm going to change the origin from selected point to model box point model box point puts a grid of dots 3 in the Z 3 and the y and 3 in the X we've got this grid of 27 points you see one extra one here in the middle because that's our construction point so let's turn it off so it's not as confusing so we've got 9 on each kind of plane if you will I want this one and if we look in orbit around you can see that that's centered left to right in front to back in our model that'll let us use our high mark to find the left edge and the right edge and divided by two to find the center point in X the same in Y front edge and the back edge divided by two that gives us our XY center and the Z I can use with the heimer as well by probing down on the top of the part this is how you would do it if you had to do a new op on this part they say somebody sent in for a quick repair on this backside click OK and I'm actually going to take our top bottle right click on this chamfer right here say copy collapse this make sure the bottom one that we're editing now is active right click paste and that moves it into this bottom-up which is nice because it brings my settings over edit geometry delete that pick this chain and let's let's move a little bit quicker here we can easily go say 650 surface feet and 2000s 60 inches a minute we'll see how that chamfer quality looks passes just a real light edge break chamfer of three thousandths of an inch click ok let's finish up finishing it up with a quick edge [Music] folks thanks for watching we love what we do when it comes to not only just CNC but fusion 360 the speeds and fees and tying that in with operating a machine shop in the business entrepreneurship side that's our focus for 2018 is to build out even more of the content that we've got on the NYC CNC website so be sure to check that out otherwise take care see you next Wednesday [Music] you

Channel: NYC CNC

Views: 60,609

Keywords: tormach, fusion 360, how to, cnc, machine shop, nyc cnc, DIY, machining, milling, CAD, cnc machining, cnc milling, flip part, fillet, 2d adaptive

Id: I3VQ7fIWUYY

Length: 24min 24sec (1464 seconds)

Published: Tue Nov 14 2017