Fusion 360 Basics - Creating CNC G-Code with 2D Contours (Wall Art / Wooden Sign)

hey guys today we're gonna take a step by step look at how I use fusion 360 to generate the g-code to cut out various signs like this we're gonna build this piece in the end and make our way up the Pinterest ladder and into our woman's heart so this project starts with a 1 by 12 piece of rough sawn pine I'm going to cut it down to 48 inches which will after its plain to thickness and smooth will be cut down to 24 inches in half and then glued together you can see I have my special helper in the shop today making sure that I'm safe and keeping my fingers away from the planer [Music] back over the top side and now cut it in half and instead of breaking out the jointer on this one I just opted to make three cuts on the table saw alternating the sides to keep it straighter and straighter in each pass so after a few hours of the glue drying I can take off the clamps flip it over and start scraping off the glue underneath next I'm gonna find my Center by crossing the corners and I'm gonna drill a small hole in the center where a screw is gonna land over at my bandsaw where I've set up a little circle cutting jig I have simply attached a board with some screws to the table of the bandsaw and a screw is on the board about ten and a half inches out to create a 21 inch diameter circle and the disc sander finishes up the edges very nicely after a quick sanding with the random orbit sander 80 grit through 220 grit for the astute among you you will maybe notice that the color right now and the color in the end are a little bit different first thing you're gonna do is design up your model in CAD or some kind of CAD software a lot of people use Sketchup because it's free I use Autodesk AutoCAD 2017 just because it's what I'm comfortable with it's what I know so you can see I created a model and I've simply extruded it to 1/8 inch thickness so we're gonna take this model we're going to save it and next we're gonna import it into Fusion so over here in Fusion what we do is we go to the upload we select our file and then we hit upload this may take some time depending on the size of your file so it says it's complete we can close that eventually it will populate a thumbnail over here but we can go ahead and open it right now anyways double click there's the thumbnail and there's our CAD model so as you can see right now it's telling us the Zed axis is this direction which is correct that's up for us but it's saying it's the front so we're gonna go ahead and select the front and we're gonna hit this drop down menu this is gonna pop up with set current view and we're gonna say top this is just kind of a preference thing that fusion 360 does I like to see it so it's actually how it appears on the CNC machine laying flat on its back like this so you can see our Zed is up our X's and our Y are where they should be so the first thing we're gonna do is we're gonna go into the cam software part of it and we're gonna create a new setup so in the setup we're set up for milling and our orientation is going to be set by the model and our origin we're gonna select in just a second when we go over here and set up our stock I like to work off of a fixed size box which means I give it the dimensions so I go on the table saw and I cut down the piece of wood to what I set this to and then that's the piece we're gonna mill it from so I like to go with round numbers so I'm gonna call this 18 by 18 inches and the height we know is 0.125 for an eighth of an inch so that's good there we'll go back to the set up and now we're gonna select the stock box point which is already selected and we're going to choose the bottom left top corner so our zet is up XY is where it should be so that's good that's where our origin is gonna be when we set up and run the g-code so back in stock everything else is good post process you can change the name if you want none of this really matters right now that okay now in order to cut these shapes out what we're going to be doing is going into 2d we're gonna be going into 2d contour this is gonna cut it out in as many passes as we need it to so the first thing we do is we need to select a tool I have a few already created my 3/16 spiral up cut bit is what I'm gonna be using to cut this out and let's just take a look at what I've done to create this tool so under general I just give it a description it's a Bosch tool or a Bosch bit this is the product number none of that really matters you just choose your flat end mill ball end mil dovetail whatever this is a flat end mill it has two flutes made of carbide no coolant the units are in inches and then you simply measure out or if you got a spec sheet with your bit you just input all of these dimensions and fusion takes care of the rest shaft holder a blank we don't care about those feeds and speeds this is where you need to actually look up some calculations on how fast your spindle can go and you need to calculate what kind of feeds you can handle with that size bit at those rpms so for me I found that 25 inches per minute at 10,000 rpm which is the speed of my router is pretty good for what I'm trying to do here cutting through this hard board you can see the plunge feed rate is less the ramp feed rate is slightly less and these are really up for further study beyond my scope under post processor the numbers one really doesn't matter to us we'll just say ok and the tool is made select our tool ok everything else now is populated automatically by what we just set the tool to so next we're going to go into geometry and this is where we're gonna select in order what we want cut out so we want it to cut to the bottom so we'll select the bottom inside of the B or o D and now all the inside stuff is cut out so we'll then cut out the outside you can see it's giving us a tool path on the inside and the outside of that and we'll do the same thing for all the other parts inside pieces first okay and then we select the outside and you can see now everything has a perimeter around it and we should be good here next we have tabs we're gonna be adding tabs not automatically because it lets way too many in or not enough so we're just gonna put them everywhere we kind of feel is needed so things don't break apart and get sucked up by the dust collection like it seems to do all the time without these so the tab width I'm going to set a quarter inch the height is going to be point zero seven and we're going to select at points so we're gonna tell it where to put the tabs right there now it's important not to forget the tabs on the inside pieces because if you don't put these in these pieces are going to go flying or get sucked up very important to put the things the tabs on the inside okay and I think we should be good for tabs these little parts in here I'm not gonna put tabs and if they go flying or get sucked up so be it whatever next we see rest machining don't care wrap tool path tool orientation is gonna be already set up in our setup here that we did earlier next we're gonna go into our Heights for the most part these are okay the only thing I like to do is for my bottom height I like to go a little bit into the scrap board to make sure if there's any inconsistencies at all in the table itself say a sour - this will make sure it cuts all the way through the piece so we'll go went 0 2 and that should be plenty to cut right through and not have any issues passes this is where we would set up if we wanted multiple passes say we were cutting something an inch thick there's no way you'd do that in one pass but here we're only cutting an eighth of an inch so we're fine to do it in just one pass so we're not going to do that now so remember we selected these in the right order the inside pieces first and then the outside when we were selecting our contours this is where we're gonna select preserve order to make sure that it cuts it out in that order that we selected it in our roughing pass we don't need that because a roughing pass will be our final pass if you're doing something very detailed or highly accurate you would want some roughing and file passes no stock to leave no smoothing none of this we're good here next in linking we have our lead in lead outs this is pretty much all fine the way it is if you want you can add ramps instead of doing direct plunges I like to go to about a five degree ramp in and it's just easier on the tool if it's ramping and instead of plunging directly down and that's about it next we're just gonna hit OK and this is gonna generate our D code for us and we'll be able to simulate okay that took no time at all next we'll go right click on our contour say simulate and we can turn on our stock and this is gonna show us exactly what it cuts out and plate oh you see what I've done here is it's not actually cutting all the way through so I know what's happened it's exit out of this let's go back and edit and what I've actually done is under my Heights I forgot to make this negative we wanted it to go through the bottom I was actually leaving 25 but we not in the table so this should cut all the way through when we go into the simulate now let's try again simulate let's go okay so you can see that now it's going around our tabs and this is gonna stay connected and we'll just chisel these out after it's all done so now we can increase the speed and cue the Benny Hill music [Music] so that looks perfect to me I would say that's success so we can go ahead and do our post process and create the g-code so we'll exit out of that we'll right-click and we'll say post process so it's automatically populated with the Mach 3 mill and that's pretty much the only thing that matters here except giving it a name so I'm gonna call this 3/16 inch bit Brodie sign 18 by 18 inch 8 inch hard board so I just like to give as many pieces of information as I can while I'm just looking at this text document to know when I'm out in the shop what size piece of stock I'm gonna need to put on the board and for me I'm always my origin point is always bottom left now the only thing that I needed to do in this list right here is select the g28 safe retracts I'm not using that so this is set to no so we'll hit post and this is gonna create our text file save this on my desktop and now we can go into Mach 3 and load this up okay so let's go and load our G code that we just made and now we can go into our tool path and look at what we've done here so if we scroll down it shows us line by line where it's going so you can see right here it's first move after the G 54 is just to plunge right down over there now the problem is our origin is over here in the corner so what I need to do actually before I run any of my programs is I need to edit the G code I need to go to the G 54 add G 0 Z 1 this is gonna make my first line of code lift the set access to one inch in order to clear all of the stock any screws or anything just get out of my origin point lift up an inch and then it can move to its first location so I just hit save and you can see the very first thing it's done now is it's put a lift up the z-axis one inch and then it goes all the way over here let's look at that a little bigger regen toolpath okay so if we scroll down again and get to our g54 first thing it does it goes up it goes all the way over clearing our stock cluing or clearing our screws and then from there it starts and that's the rest of our G code all we need to do now is run the program and it should cut out perfectly [Music] [Music] so after were things cut out because it was a spiral up cut bit it does leave a little bit tear out on the top nothing that'll a few passes with the random orbit sander can't fix the finish I'm going with on these hard board pieces is simply a white spray paint three coats ten minutes between coats in order to hang this piece on the wall I'm just gonna use my router with a keyhole bit to create a slot in the back so a screw or nail can easily hold this on the wall and balance anywhere it needs to once I have everything laid out properly and I have the right orientation of the grain on the back I'm gonna go ahead and put a very thin layer of glue I don't want any squeeze out coming out I just want it to be held in place you know forever I then throw some weights on top of this just to keep everything in place while the glue dries and with that the project is complete [Music] you

Channel: DIY Builds

Views: 57,480

Keywords: DIY Builds, Build, DIY, Builds, Woodworking, how to, wood, make, custom, simple, easy, lumber, pine, stain, screw, quick, cheap, cnc, cnc table, homemade cnc, homemade, home made, diy cnc, custom cnc, cheap cnc, cost, router, cnc couter, diy cnc router, servo, stepper, motor, servo motor, nema 17, nema 23, Z AXIS, AXIS, board, controller, driver, ACCURACY, ACCURATE, CONFIGURE, inlay, PINTEREST, PINTREST, WALL ART, WALL SIGN, wooden sign, cnc sign, fusion 360

Id: nhqaR7OHptk

Length: 17min 2sec (1022 seconds)

Published: Thu Dec 06 2018