How To Run an Unproven Program and Not Crash with a Siemens 808D Control

hey everyone kevin from mechanicalvanders.com there's a lot of people that i know that are thinking about buying a cnc machine but they're really worried about if they have the ability to do it and they're also worried that they're going to crash the machine when they run the parts so what i thought i wanted to do was talk about what i do when i'm getting ready to run apart for the very first time and most of the parts that i do run i only run them once i don't do a lot of production so the first time i'm gonna run apart is the only time i'm gonna run apart for the most part uh we're going to kind of go through some of the steps that i take to to ensure that i'm not going to have any major crashes i'll never say that i won't crash i'm trying to prevent the catastrophic crashes i don't want the spindle to crash into the vice or the tool to hit the vice jaws things like that so we're going to take a look at some of the tools that i use on the style with the siemens control to do that is my method 100 correct i found this kind of funny this week i received a sticker thanks guy that says that i'm a certified youtube machinist so uh you should trust everything i say and that's not really true this is what works for me this is how i like to do things other people like to run their programs in the air first people like to try to uh turn on single block mode uh other people really rely on the distance to go of their control to make sure that they're in the ballpark and i'm going to show you the method that i use when i go to run a program for the first time we're also going to see me use a new tool for the first time i finally got a hammer this week this is going to save me so much time setting my workhorn systems so we're going to see how this works unfortunately i'm only going to be able to use it in x and y because i haven't calibrated it in z yet but that's probably something i'm going to do in a future video so you can see how i calibrate this to the tool height probe thanks to peter betts's video that i learned how to do that on so let's go ahead and take a look at the part that i want to use to go out to the machine and see how i do some checks to make sure that things are going to run okay for me so here's a part you may have seen me make in a previous video i have more bottle opener stock so i thought that this would be a good part to use as an example about how i went out there and decided that it was safe to run and i wasn't going to have any major crashes with the vice again there's no guaranteeing that i'm not going to do something stupid like a large step over or something like that where i crash a tool and break it or wreck a piece of stock but my goal is to not crash the tool into the vice or run through a vice jaw or hit this worst like hit the spindle and device something like that so if i take a look at my top side setup you can see how i have the work ordinance system set up i have it in the top center of the part and then we have the part sorted towards the bottom and a lot of the material there's extra material all the way around the part one of the first tool paths that comes in is an adaptive clearing that does the majority of the work and you can see it's cutting past the bottom of the part right here 2d contour that happens there's a trace that happens to clearing up some material on the top a spiral to clean up that other face a contour another contour you get the idea there's a drill now this is one of those things i don't have to pay attention to i probably drilled this really deep and that's okay i don't really want you'll see what i mean in a second when we look at the code i'm going to look at how deep this drill goes but i know that's in the center of the part and i'm okay with that some more contours a chamfer a trace and then there's going to be just some 3d tool paths and a mirror to do the other side so that's the cam on this part so we're going to go out and set this part up in the machine and then i'm not actually going to machine before i hit go i'm going to show you how i do a quick check to make sure that i'm not going to have any problems when i run this part let's head out to the machine and take a look at how i set things up everyone uh i'm inserting this into the video i recorded this after everything else and when i went back and edited the video i realized we couldn't see the machine screen very well so i'll work on that in the future but i just wanted to come back and clarify some things here so here's what the machine screen looks like now one of the things i talked about was this tsm screen and when i click on tsm what it'll do is bring up some options like allow me to change the tools uh speed or the other thing i did was activate a particular work offset um if i wanted to change the tool i would just put it push in the number and a couple times in the video i said to hit the cycle start and that didn't get captured either the cycle start button is right down here the green button right there so whenever i executed those commands and i said hit cycle start i just moved my hand down to the green button and clicked on that when i activated the work offset for gpd4 i just moved my i used these blue keys right there to move the cursor down to that spot and then now when i'm on that field i'm just going to go ahead and click on it and now it says 54 500 and then 54. so if i want to activate that now i just come down and hit the cycle start button and then the the g54 or coordinate system that is active on the screen um also the other the other part that was difficult to see on the screen was when i loaded up a program so i'm just going to go over to the program manager and then now i want to grab that program that i selected from the usb key and if i look on the usb key now you can see there's that z height program so again i'm just using those blue arrow keys right there to arrow down to it and then when i like it i'm going to click on the input button and what i can see very clearly on the control that you couldn't see was this number right here the negative 0.6675 so there's other tool heights that are on here like this negative 1.012 but that's the drill that's on the center of the part between the vise jaws that i don't care about um so that's how i determined how low i needed to bring the tool down to make sure the tool wasn't going to collide with the device that you're going to see in the next clip coming up the last thing that was maybe unclear to see was setting the work offset measuring the work so i'm just going to click on measure work and i have some different options a single surface the center of a block or the center of a circle and so i just chose the center of block option the control tells me where i should move in what direction from and when i when i'm happy with that particular side i say say p1 repeat the process say p2 say p3 say p4 and so on so like if i hit save p1 now the graphic tells me to go to the other side of the part and do what i need to do so it's pretty easy to follow along with and when i'm done i'm just going to click on the set uh wo button i kept saying w0 and i just did it right there too um it's not it's work offset not w0 but work offset is what that stands for so i would hit set w0 and it would update that particular surface or that particular work offset based on the inputs that i put in there so i hope that helps to clarify some things on this machine it really is nice and easy to use and i don't want anybody to be intimidated and think that they don't have the capabilities to easily run a machine like this style x7 so i'm out in the garage now and the first thing i have to do is i want to set my work ordinance system and find my xy0 so i've got the hymer loaded in you can see here the heimer's in and it's in tool number 12 so i told i loaded up tool number 12 and put the hymer in to the spindle and now i'm ready to go ahead and find my xy center so to do that i'm going to hop back over to the machine and i'm going to say that i'd like to measure work and since i put the work coordinate system in the top center i'm going to say i want to use the four point method so i'm going to go ahead and click on that and then i'm just going to come down here and instead of g500 i want to set g54 so i'm going to click that one time and now the control is saying that it wants me to slide in from the side and set my first work coordinate system my first p1 i should say so i'm gonna grab my manual pulse generator the mpg and i've got this set to move at a thousandths of an inch and what we're going to do in the hymer you see that there's two needles here there's a red needle and a black needle we're going to rotate around until the black needle is on zero and the red needle is on this other zero and it also gives me an indication how close i am to over traveling the hymen breaking the probe tip off so i'm in my x-axis of travel i'm going to start to move over and what we'll see is the hymer needle starts to move so i'll just keep going around so i need to go around one more time and when i get close to it i'm going to switch to the ten thousandths of an inch and then i'll sneak up to the zero until i see that zero and that's close enough for what i want to do and now i'm just going to go over here and say i'd like to save p1 and now the display is telling me what i need to do next so i'm going to switch over to z and i'm going to move back to the thousandths of an inch increment and i always like to go up first and then once i know i'm safely up now i can use my larger jog increment to get over to the other side so i feel pretty good about that i'm going to come down in z and when i think i'm far enough now i'm going to switch back to x but i'm going to put myself back to the thousandths of an inch mode and start to jog over until i make contact and i start to see the needles indicating so i'm getting close to where i need to be i'll switch to the ten thousandths of an inch move my zero up there close enough for what i want to do i'll come back over to the control and i'll say save p2 now i need to come in from the front so again one more time i'll switch to my z increment and put it back to thousands and go straight up until i clear now i'll switch it to the x and go back to hundred thousands use the jog handle to get me roughly back to the center i'm gonna come this way and y until i know i'm clear and then i'm gonna come down in z until i'm clear switch back to y and go to the thousandths of an inch and now i can just start to jog back until i make contact with the hammer and i'm just kind of visually watching and looking at the needle so you can see now i'm making my contacts we're going to go around one more time i'll switch to my ten thousandths of an inch and then bring it up to the zero so i like that so i'll say save p3 over on the machine i'm going to switch to my z increment z axis switch back to the thousands i'm gonna go straight up until i know i'm clear i'm gonna switch to the y and 100 thousandths of an inch or ten thousandths of an inch i guess is what we're moving i'm gonna come back now that i know i'm clear i'm going to come down put it back in y and a thousandths of an inch and i'll just come forward again until i make contact so i can see my needle's moving now so i'll just keep going around until my needle gets close to zero and then i'll switch it to the ten thousandths of an inch bring it up and when i feel good about where that needle's at i'm gonna come over here and say save p4 so i got my four pre sets i want to make sure that i have g54 verified and now i'm going to say set w0 and now i've saved that work coordinate system so i'm going to hit the machine button to take me back and i'm going to go back a couple times just to get to the main screen i'm gonna i'm gonna jog back up so i'm gonna go back to my z-axis and put my thousands of an inch now what i wanna do is i'm gonna use this tsm screen so i'm gonna click on tsm and i'm gonna scroll down until i find i want to activate my work coordinate system so i'm going to say i want to activate g54 so i'll say cycle start because of that now i just set gpd4 i can go back and i can say i want to see the actual value of the work so this coordinate system that we see here now is the x y zero of the machine remember we haven't set z yet so i'm just going to put this in y and move that till it says zero or roughly zero so there's close enough to zero and then i'm going to come with x and i'm gonna set that till that's zero so there's two ten thousandths of an inch now all i want to do is visually check i'll bring this down a little bit on the machine over here so all i want to do is visually check and say does that look like that hymer is in the center of my part visually is it perfect no i can't tell thousands of an inch or anything like that but what i can tell is i'm not shifted way off to one side or the other so that tells me that i've gotten my x and y were coordinated set properly and now what i'm going to do is i'm going to switch out the hymer and put in another tool so i'll be back when i have that all set up okay so i took the hymer out and now i'm ready to load up the tool that i'm going to use to do the deepest cut which is tool number two the three end mill so in the machine i'm back in tsm and under the tool change i'm going to type in tool number two which is my tool number and then hit cycle start and it's going to think that it's going to put tool number 12 back even though i've already taken that out of the machine i don't want the hymer in the tool changer and now it's going to load up tool number two and with my manual pulse generator again i'm just gonna bring the tool down until it's somewhere close so just kind of getting it close in there and now that i'm closed i'm gonna kind of switch to the thousandths of an inch and then i'm going to use a trick that i'm i'm super excited to get the heimer for because now what i do is i just lower this tool down and i just move i just move the piece of paper around until it catches so i'm just moving it down a thousandth of an inch and then i can start to feel some friction maybe one more so i probably should take in account the thickness of the paper but i'm not going to i'm just going to call that good for right here so now i'm going to come back over and say that i'd like to measure work this time i want to do a single surface and that surface is going to be z but i still want it to be for g54 so now i'll say i want to set my work offset let's go ahead and set that and now that's my z zero is the end of that tool on the top of the part i can go back and i'm just gonna raise the the cutter back up now and then i'm going to jog over go to a little faster speed here i'm going to jog off to the side a little bit and i can get rid of this piece of paper now now what i want to do is over on the machine is i want to pull up the program manager and i want to go to the usb and i want to pull up the program that i made called z height and on the z height i'm going to say input and the the key thing i'm going to look for here is tool number two tells me it's going to a negative point six six seven five so that's the deepest that tool is gonna go there are other tools that are gonna go fairly deep um like this drill is gonna go negative one but i don't care about that because it's a drill and i expect it to go really deep to the part and it's in the center of the vice so that's gonna be okay i'm expecting that so everything else on here looks like it looks like that 0.6675 is my deepest tool which is my three ace now i'm going to say uh i'll just go back to the machine screen so negative 0.6675 so now that i'm off to the side i'm going to go back to my tsm just to i do this just to make sure that i'm on the right work offset and cycle start and then i'll go back and now i want to see my actual value of work so i'm going to switch over to z and kind of i'm kind of looking at the machine i'm kind of looking at the controller until i see minus .6675 so there's six six i'll switch it up a little bit and pull it back 667 if i really wanted to get technical about it i can move it to the ten thousandths of an inch so if i move over on the machine again now what i can do is i'll come back a little bit in the y first we'll switch to a little faster increment and really what i'm trying to do is stay above my vise jaw so now if i slide over what i would see based on this is i'm gonna hit the vise jaw so let me go ahead and grab the camera and take a closer look at this so we're going to come down and i'll get right down in there and what you should see is that that tool is going to run into the vise jaw so i need to figure out how to move my part around in the stock or whatever it might be so what i what i would do now is go back in to fusion and edit my my program and then i'd come out and i'd repeat this whole process over again i don't have to repeat the setting the x y and z i've already got that set but i would do this check to make sure that i'm not going too deep and once i make that check and i know everything's okay i have 100 confidence to run this program knowing that i'm not going to crash anything into my vice because i did this check and i checked my tool at its steepest point so i hope that gives you a little insight on how to set up the machine and do some checking to be confident that your program is going to run just fine and you're not going to have any catastrophic crashes so as always thanks for watching and if you have any questions please leave them in the comments below

Channel: Mechanical Advantage

Views: 3,085

Keywords: Syil, X7, Crash, Fusion 360, Autodesk, Autodesk CAM, Vise, Mlock, Haimer

Id: yUfCC4Zv3ps

Length: 17min 56sec (1076 seconds)

Published: Sat Feb 05 2022