How to use probing in Mach3 || Tool length offset sensor

hello and welcome back to you in the video since in the last video I did the electronics upgrade for my CNC I have been able to experiment with probing in Mach 3 and since it's been so great for me I thought I'm gonna show you how it's done because it's pretty simple but you need to know a few tricks so if you're interested in that stick around so what is probing well probing allows you to find the edge or the original of the workpiece without having to eyeball it or use the paper scratch method it works by digitizing a pin on your controller in my case it's putting 24 volt into that pin but it's gonna change depending on your controller and the controller can read that as an input this also allows you to use multiple tools in one project without needing to read 0 the tool every time because the surface might already be machined away and then what are you gonna do so I'm gonna show you how to use one of those probing plates and how to use a tool offset lens sensor - thanks offset sensor one of those I'm gonna show you how to use it so here you can see the setup I got the two lengths sensor bolted to the table so it's always in the same position and it is isolated from the machine itself via this plastic block since the machine is grounded and the truth is grounded I wouldn't be able to make the connection would always be made if this was directly touching the place a table obviously and for the same reason I can just probe the edge of this plate I need to have this data plate it has plastic insert it in the bottom and I know these dimensions these dimensions and the thickness so I can insert that later to the program as a probe I am using the ground shaft right now this is 4 millimeters this is totally precision and not just an end mill I broke yeah I mean this is not super mega duper high precision so they will just do fine now these are the two wires that's coming from controller up there you can't see that right now one needs to go to ground or to the machine so I can just hook that up to a screw basically like up here and one goes in this case to this plate right here you know I can hook that over here you see it's got the corners Baird ouch cut out so it fits over here perfectly so the next step is to drop the probe just over the corner of this plate that's just about here and then in Mach 3 you want to open wizard pick wizard and then choose drop Wizards this is super easy to install that's just dragging a few files into folders and I'm gonna link down below how you can do that it's super easy also I'm going to link the plugin for this Xbox controller motion thingy because it's amazing and really handy and that's how it looks like there are a few settings here that you need to figure out but for now you can just copy mine basically the only important one is this one right here that is the diameter of the tip and since I'm using 4 millimeters I put in 4 millimeters then over here is a feed rate that is going to use I'm just gonna put in 500 this is the search heat rate and then it's going to debounce and use the final feed rate to find the center again the edge again so these settings work pretty good for me now what you can do you see this light right here you can check your probe so if I touch this yeah the lights pro-active the Pierce so I'm going to reconnect that and then with that in place I'm just gonna push it down so it's nice and tight I can hit find this corner and you can see it moving I have it set to auto 0xy so after another thing it's gone and put x and y 0 over this corner and afterwards i can input the offsets see there does the d bounds and comes in this ten millimeters per minute over to the other side but further this time that is this value by the way thirty millimeters and does it again once x up millimeter this is that belly here how much it backs up and then was ten millimeters per minute comes in to check again you can see that it should position itself right above the corner now and give x0 and y0 next step is to find z 0 so we go a bit over here still everything connectives and we press this button right here [Music] perfect you can see it's now one point six five three millimeters above the surface and that's yeah so another thing you can do with probing which is great is this vise might not be perfectly parallel to this these rails up here so what you can do is you can probe the edge and find out the angle then it emits a light pipe so the procedure is pretty much the same you move it close to the edge down and then you can press this button right here I'm gonna put in auto rotate it's a bit buggy in my end I don't quite know why and I think I want to find this edge and press that so you can see I was off at zero point one four nine millimeter and it actually put it in but since knock three rounds down it just says zero degrees but that's just in handy feature that you should know about okay I'm gonna take this away now and if I exit I can go to zero so what you're gonna notice is that this zero is obviously not this corner and that is cause it used to this corner right here but I know this is ten millimeters this is ten millimeters and this is eight millimeters or seven point nine five so I can input that hand mark three [Music] and if I go to zero now perfectly on the corner you're going to call the probe or tool zero and what you're going to do now is move over to the two lengths finder that is over here oh my my lighter I've dropped give you a second to just you know a few millimeters above the surface and then what you need to do in mark 3 there's this button right here that says also tool 0 but the script on there did not work out too well for me so you can close operator edit button script it's gonna start blinking and then you press that and the script appears now one link the script I use down below the base you just input that save it with this button right here and closes yes and then hit no wait obviously connects your probe pin because that would be silly did you zero of the part first yes I did it's gonna offset just four to zero alright so we got that position saved so since I want to demonstrate to you how well that works and how useful is I have prepared this block actually for another project so I'm going to use four different tools six millimeter flat three millimeter flat six millimeter 45 degree chamfer bit and a one millimeter ball noise goal point and mill to machine a little test piece and afterwards we can check together how well the tool path lines I actually didn't do this yes so we're gonna find out together so let me change this tool and I'm gonna show you how to proceed afterwards remember this tool is now to zero so we're gonna change to two one now it doesn't matter what tools which just that you do it in the right order okay as you can see I change the tool this is a six millimeter carbide some amount of coating on it and mill and once again oh wait now you can see in Mach 3 I changed I'm gonna change now tool two to one enter it's important that these values are at zero drop down slightly about the surface not gonna forget to connect my prop and I'm gonna hit all the tools viewer again no if I just zero-point go to zero [Music] it is still okay above that point maybe I didn't should have been more careful with the z-value I put in the room and I put in 7.95 probably should have put that in closer probably was 7.9 or something not quite sure but yeah it's pretty much the same set in the same space and that's gonna be in the same spot every time now so I'm gonna start this tool path and then I'm gonna meet you back when I change to the second tool or third - already including the probe okay so that was the first pass with the first tool we roughed out the dome there's a tiny step here that if I had a taller piece of aluminum that would have been more pronounced but it's working hours visible it is cutting corners for some reason I think I have some settings from the motor tunings wrong in Mac 3 but you know that's my problem that has nothing to do with the tool with a Probie so let me swap out two - number two and I'll meet you right back alright tool number two's in and as you probably guessed we repeat the problem okay in Mach 3 change the tool to and all the tool again love you going to zero [Music] and I dearly that's gonna be the same spot no real reason no real way to figure it out without running program so I'm gonna do just that [Music] [Music] that looks pretty much all right as its set these corners are cut for some reason I think my motor didn't stop fast enough or start fast enough and Mach 3 kind of didn't care so I'm gonna have to tweak some settings there but the probing worked so far so I'm gonna swap out to a three millimeter flat bit so you can get in those tiny corners that are just there so I have reason to you the three millimeter and we're gonna repeat the progress the process contact three millimeter two less installs so go to tool number three now auto to zero let's do it thing and then cut the next pass so that went pretty well and for the last pass I'm going to use this two millimeter ball nose and mil I know I said one millimeter earlier but it turns out I don't have one right now first result gonna be the same if the probe doesn't get it right and it's crashed into the floor just by a millimeter it's gonna break so swap it out I'm gonna have to go upstairs and recompile some G code with the new tool diameter then we can hit run and see that hopefully take a bit more shape tiny anvil installed probe is ready go last tool - for auto tool zero now go upon narrow so we don't crash we add milk load new decode and go and this is the finished part as you can hopefully see there right here is the line where the three millimeter bit and the eight millimeter bits met and there is a tiny tiny step there that you can barely feel but I'm gonna argue that that is a lot better than you could do by hand or with a paper around the corner is that problem that I've talked about which i think is you know it's still my problem I still have and configure this controller perfectly but that has not used the probing the part on top actually came out pretty nice that tool plus is great I'm gonna link down the file to this in the description below if you want to have a look at my feeds and speeds in the tool pathos and here because I had the two millimeter the three millimeter bit also go over here you can see that they didn't make a scratch so they were perfectly flush with that part and yes so I think that's success and I hope you can take something away from that if you have any more questions don't be afraid to ask me down below in the comments I'm always happy to help I'm gonna link all the resources or the scripts and the wizard and how to install them down the notes below please consider subscribing or liking this video until the next time have a great day

Channel: Uniquelymade

Views: 24,013

Keywords: diy, maker, making, handmade, wood, wooden, woodworker, woodworking, cnc, machining, machinist, mach3, probing, tool, length, offset, probe, wizzard, wizard, project

Id: AgOIlPmqFw4

Length: 16min 20sec (980 seconds)

Published: Tue Mar 05 2019