Lathe Compound Mods for Multifix Tool Post

[Music] thank you [Music] foreign [Music] [Laughter] foreign foreign thank you foreign [Applause] thank you [Music] [Music] foreign thank you [Music] foreign so you guys have been watching me machine this t-nut here for this compound this is off of a Precision Matthews lathe and they are wanting to bolt this Peewee tools multi-fix tool post up there to it and the way that I have shown this before like I did on the American pacemaker is the way that they recommend that these tool posts be mounted is that you have a solid surface on there you don't have a gap there like you traditionally see with a wedge style quick change tool post American Style they like to have full contact on this right here so an easy way to do that is just to make a solid t-nut and then you can either bolt it down using bolts socket head bolts to bolt it down or you can use set screws there to push it up against the t-slot and that's that's the way I've done mine and it works just as well so all you'll have to do is just install the t-nut there and once this is installed it's pretty much there and doubt it'll ever have to come out so we'll get it you just get it centered up I've got it milled to the same width as the compound slide there and then we still need to set this up we'll set this entire compound slide in the Vise on some parallels and then we're going to run a face Mill across this right here to cut the top of the t-nut even with the top of the the compound slide there so you'll take your take your Allen wrenches and just tighten the set screw torque it down torque it down nice and tight and then we'll set that up and just make one cut across it to clean that up and then you will have pretty much a solid surface there for the tool post to bolt down to so next step is we'll get this milled and then that'll be ready this was a three-quarter 16 threaded hole that we machined in there and so what we're going to do is machine a post a stud if you will that will screw down into the t-nut that this will sit down on and then we'll probably have some half inch threads on the top and use a half inch flange nut to hold the top of the tool post there and then we'll also have to take this guy here they purposely leave these holes small so that the end user can drill or bore these to whatever size they want for whatever size stud that they're going to use in our case we'll drill this and bore it to half inch and then we'll have a half 13 thread sticking up out here for it to uh pull down with I've been getting my setup ready here on the mill so that we can Mill the top of this compound slide I just wanted to point out what we're going to be doing is setting it on the base here all right there was a there was a ding in this thing right there that's how it showed up so I filed that and I hit that with my prison Precision flat stone so that we should have a good flat surface there with no more dents or dings in the bottom of that and then so I've also got some of my Fireball tool magnetic blocks stuck to the side of this because our Jaws that we're going to be using to hold this can't come all the way in here to this area because of the base you know got this radius machine in there so we're just using those magnetic blocks as spacers so that whenever we clamp it in there like that we're clamping on this part and not this right here and now I've got it I've got it figured out and that's going to work out pretty good just like it is and then also have a couple of parallels in the bed of the Vise here I've already miked those so those are within you know a couple of tents of being the same size on on height there so those should work pretty good and we'll be able to set that down in there it's going to clear the Center Post here and set down on this machine surface I'll show you what I'm talking about see if we can sit in or without losing our blocks just kind of get it I've got everything where it's just kind of centered in the Vise there and we're sitting on our parallel there and we're on our parallel on that side as well okay so just like that should hold it pretty good and then what I'm going to do is I'm going to use our Starrett 196 and just do some sweeping on here and just see how flat or parallel it is with the machine table all right that's pretty tight on that one right there it's taking some resistance to get it to move you know I'm going to check this side as well same as that one it's got some resistance but make sure I can get it all the way down now it's it's a lot tighter there did we move this side foreign against it so looks like it's going to be about as flat as we can get it there on the parallel that side's tight we'll go ahead and run it down here to a zero and we're going to sweep it this way and we'll go across that way as well see if you guys can get that zero a little a little bit easier to read for the camera that's where it's come up on the Block there where we're going to Mill it down so we got that twenty thousands tall all right drops off there to zero looks pretty flat right there we got maybe a few tents difference on that but like I said we're bumped down as flat as we can get it so we're relying on the machine work of this block right here all right so I'm going to bring it across in the y-axis over here to this side and I can see it moving so we're not parallel so it dropped three thousandths let's see if we're flat that way so this direction we're low on this side three thousandths or this side's three thousands higher now why that's not square and parallel I don't know but that's that's the Machining of the compound right there and we've got it bumped down against our parallels there they are snug on there so without doing some you might be able to do some shimming on that to uh to get it flat but three thousandths across there I think all we're going to be doing is just cleaning this up so I'm going to use a three inch face Mill and we don't even need that much we only need a little bit over two two and a half inches I think it was so we'll use a three inch face Mill and just line the edge up here and just come all the way across here like this so it'll be about even with those marks there and we'll have a three inch wide mill cut where we just touch the surface right there so I got to thinking I'm showing you guys this let's go ahead and try to make it as best we can I feel like the top of this really should be machine parallel to the base there because that's where it's pulled down to but the fact that we're three thousandths off on that angled it's kind of bothering me a little bit and I would like our cut to be even with the top of that so we're going to try some shims on it this is some 3000 shim stock here that I've cut and we'll put it under this side clamp it down again bump it down and I'll indicate it and see if we can get this picked up on that side there three thousandths I think the easiest way to maybe do that is to just put our shims right here all right I think that I think that's good let's try it again foreign so it seems the same in the x-axis of what we had now let's try it this way and I have not I improved it some but it's still a little bit in there it's one and a half yeah so about one and a half one and a half thousand so I'll cut a couple of more I'll I'll take those and cut them in half and stack them and see if we can get that that last one and a half dowel out of there much better so maybe a half a thou maybe not even that much but we've got slight amount of movement in there all right I feel much better about that even though still not technically parallel to the base but at least we're going to be matched up to the surface it's already been machined yeah I think we're good to go there thank you foreign [Applause] [Applause] foreign our KBC Mill is working great for this job right here we just finished our cut so after you saw me touch off with the paper there I knew that was going to be within a couple thousands I went ahead and brought it up ever ever so slightly Let's see we were just starting to touch the corner of this cast iron and what I did was I set our zero to that point right there and backed off uh ten thousandths made a cut and then brought it back down to our zero and you can see we've still got our zero there and I went just past the zero I didn't even go a half a thou but just past it and so our touch off plus that little pass zero is where we're getting into our cast here the cast iron material and you can feel that little you can feel a step there but it's so minute that it's it's not a big deal but I wanted to make sure that that was completely cleaned up all the way across there there wasn't any variation in it so it worked out really well the the Walter face Mill did a good job Milling that we've got a nice pretty surface on there and then that is going to give us our solid surface there for our the base of our tool post to pull down onto so this part of the job is done next phase is we need to machine the stud that's going to screw into this that will hold the tool post down to the compound there all right while we're on the lathe I want to show you I just got this back from written Industries and what I had done is I sent them one of my old life centers that I had actually bought at an auction that was messed up now this live Center was not built by written it was a it was another manufacturer and they had actually already repaired it once in the past I didn't realize that until I sent them some pictures of the repair order and um they actually put their repair orders on the live centers that they repair and and send them back that way you can reference it so written Industries makes really high quality life centers for uh lathe use and they also have a wide range of face plate face drivers for turning between centers and that's something that we're going to be getting into pretty soon with our CNC laid there as well but I wanted to go ahead and take this thing out and put it to work but I wanted to show you before we uh before we actually start using it so we can see what it looks like is the first time I'm seeing it after the repair here yeah so they got the uh they went ahead and Laser etched in there the repair order number that's pretty cool so this guy right here it had a burned up Center on the end of it the uh this this point right here was completely burned up and rolled over and I wanted to see about having it repaired because it's uh it's actually much cheaper to have one repaired than it is to buy a brand new one and so that's one of the services that they provide you can send these guys in even if it's not made by written Industries so if you may if you have one say like a royal royal products they make live centers and the bearings are bad or the center's messed up it needs a new spindle in there you can send them back to them and what they will do is that they will quote you before doing any repair so they sent me a quote on this to have a repair I thought it was good so I went ahead and had them go ahead with it and um and so what they have done is I can tell this is brand new this spindle here the center is new and I'm sure it's probably new bearings in there as well and then they've just cleaned it up some also so this is I love these kind of centers because you have this extra length here that protrudes out from the center itself so that it'll allow you to come in here with your turning tools and get closer to the Center for those smaller diameters when you turn on the end of the shaft there so feels just like it's supposed to so now we can put this guy to work on our lathe we got our rebuilt written Industries live Center in there see how it's going to do I can already tell that it's much smoother than that other one I was using [Applause] [Music] [Applause] foreign complicated stuff here we're turning this down to half inch and then we'll have an undercut in there and then this will be threaded for half 13. this is already turned to 20 millimeter I believe 0.785 and then once we get this threaded and all this chamfered and everything like it should be we'll take it out band saw it and then we're going to thread this other side to screw into the the new t-nut on the compound slide thank you [Music] foreign so I'm shooting for 0.784 on the micrometer that should be that should put me in the range of where I need to be for a good fit looks like we nailed it right about where we want it there and make a couple of uh very light spring passes and then we have just a standard flange nut and there's a Tico flange nut what I would recommend to be used on there got a nice fit on there just need to file the top there Polish it up and then this part's done thank you all right so we're Machining our three-quarter 16 thread there let's go ahead I should be about where I need to be this is always trickier being right up against the Chuck like this not having room for my hand to get in there you just have to kind of manipulate it try to hook the triangles [Music] so I'm shooting for a 1.055 on the mic measuring over the triangles there all right so let's see if you can focus in on that so one inch 55 and what six tenths so I'm going to call that good enough right there that should that should fit right where it's at there's our machine stud ER 16. see how it fits very close fit that would be a machinist fit right there I'm having to grab onto it to twist it in there so it it could have used another half dollar or even a thousands off that thread but that's good you see it's all the way in there so that'll run like that once it's installed it's there what I'll do is I'll Mill a couple of Flats on here also so that you can use a wrench to tighten this up and it's and it's tightened up in there so it's good all right that part of it's done so on our post I machine this it'd be a slit fit inside this bore here all right this is going to slide down on that so that's the next thing we need to just take I'm going to put this in the three jaw and just drill and bore that half inch so that it'll slide over this stud right there all right there's our spacer drilled it and board it chamfered it made it look nice so let's go ahead and see if everything fits we'll go ahead and start with our our post to body there and then we'll go ahead and take our spacer drop that on there all right here's our clam shells we'll go ahead and stick them on there make everything look right it looks like I got my thread linked correct this piece goes on top of there you also have a pointer that slides on there like that you get this position so that you have the that's your that's your 40 positions that you can rotate this thing around to okay there's also a spring right here that spring goes down into that Groove and that holds what holds that pointer in place all right then we can put our flange nut on there bam looks like it's going to work out just fine so I've got a little bit of extra thread there on the top just in case maybe he wants to put a washer on there I don't know but I made it so that you can put a washer on there and it kind of makes it flush with the top of the the nut there as well all right so all of it fits it's looking pretty good last thing I need to do though is uh I need to Mill a couple Flats in the stud so that it can be properly tightened down into that threaded hole there [Music] [Applause] [Music] foreign we finished our last operation that we needed got our Two Flats milled on there so I started with three-quarter I was going to see if the three-quarter but I just I just didn't feel like there was enough hold there on the wrench uh to tighten that up without trying to round it off so went down to the next standard size which is 11 16 and we've got it milled so that 11 16 wrench will fit on there nicely so this guy should be finished up we'll just put it together one more time just to kind of uh look at it again and you can see how this is going to work right here you got to install it you can tighten it up with the wrench just like that and mount your tool post and bolt it down with the flange nut just like that so there is one more thing that you do with these guys now this is something that the end user can do if they choose to but the way the multi-fix is designed let me take this uh take these guys off you can see all right in the body of the tool post here you see you got your three holes so what you do is you transfer a punch and drill and pin it you just put like a little dowel pin in there to line up with one of those holes and there's a couple reasons for that one it provides an anti-rotation fixed pin in there so that if you're let's just say you're turning under a heavy load the tool post isn't going to try to push off of the tool pressure and twist around the other reason for that hole there is that it actually gives it so this is a 40 position tool post and if you're just say that hole right there is where it's lined up to where it's going to live at well if you want another 80 positions you take that you take this loose and spin it around you drop it in the other hole there's another 40 positions right there well there's another hole right here that you can drop that in because it's going to give you another 80 positions I personally have never had a need for that kind of positioning for these tool posts but it is an interesting feature so yeah you get you're getting a total of 120 possible positions that you can drop this in at if you want to uh for me I think the most useful thing would be just to pin it so that it keeps it fixed from trying to spin on any kind of heavy pressure there so just a little uh info on the on the multi-fix style and this one made by PeeWee tools and that's who I use you know for the the one on the American pacemaker uh Peter a nice guy to deal with and they supply all of the parts for these guys if you need if you need a wrench for this if you need the tool holders themselves or whatever PV tools can supply this stuff for you for your for your needs so there we go this little project is finished up we're going to get it wrapped up nice and tight and uh put it in a box and get it shipped on back to the uh the owner of this and they can this is a brand new Precision Matthews lathe that they just purchased and wanted to mount the new Peewee tools uh tool post on there and ask for my help in assisting for this so they're excited to get this lathe in operation so I'm going to get it back to them right away hope you guys enjoyed this little project very soon [Music] [Music] foreign [Music] [Applause] [Music] foreign [Music]

Channel: Abom79

Views: 147,082

Keywords: Abom79, Machine shop, machining, manual machining, manufacturing, industrial repair, lathe, mill, Cnc, PeWe Tools, Multifix, Lathe compound, lathe compound slide, toolpost, KBC Tools, KBC mill, Precision Matthews

Id: f8NVJ00J4is

Length: 45min 34sec (2734 seconds)

Published: Sat Jul 01 2023