Monarch 10EE Lathe Gear Segment, Part 2: Turning to Diameter

[Music] hello keith rocker here at finish machinery.org guys uh back to work today on this little gear segment that i'm working on making for a monarch 10 doubly late this is for a viewer of mine and like i mentioned in the first video i have the same lathe as this that i will be eventually restoring and so i'm going to make a few extras so that i have one in case i need it as well so in a previous episode i took a block of cast iron we cut it down to size ground it into the proper size what i want to do in this episode is get it cut into pieces go ahead and get the whole board through this and get the radius turned on the outside so that we can actually cut the teeth in there so without further ado let's get started so again this is the part that we'll be making uh it's a little gear segment this couple of teeth on the original are have been broken out and this stock is cast iron that's what the original was and that's what we decided to go back to uh on this one so game plan here is i got a nice long piece of metal here i don't i can get multiples of these made so i'm going to go ahead and make several at the same time basically just use up my stock now one thing that i've got to do is i have to cut this radius i'll have to do that on the lathe after we drill and bore the hole in here and to measure that it's going to be difficult to measure that unless i have a hole diameter so one of the parts i'm going to make as a full diameter where i can measure off of both ends and i will make a little mandrel we'll turn this on the lathe but on the other pieces i really only need the half size so i'm going to cut those a little bit shorter and we'll have the one full diameter or the other ones we will just be able to get the the radius off off so this first piece here if you kind of look and turn that around that's roughly the length that we need for a full uh diameter and the other pieces i got them cut a little bit long because i don't have enough to get quite five pieces out of this but uh i just went ahead and made these a little bit long but we will cut these short and only cut the radius on one side so i've already got my lines laid out i'm going to go over to my chop saw and we're going to cut these pieces and then go over to the mill and drill and bore those so to cut these i'm just going to use my morse metal devil saw here and we'll just cut these pieces right off [Music] so i want to go ahead and drill and i'm just going to use a reamer to ream this to final size it needs to be 15 16 in diameter and i'm going to indicate in or or use my digital readout to dial into the center of this and then come in about an inch and three quarter from the edge uh for that center hole now i've got a center finder here set up on my my milling machine and we'll go ahead start by finding the center between these two jaws so what i'm going to do is uh we'll drop that center finder down in between there and i'm going to go off the back edge first with these this edge finder it's actually an edge finder not a center finder but i'll just move that slowly up until it scoots over when it does like that i zero my digital readout i'm gonna double check that a time or two make sure i got a good measurement and i do so now i'm going to go to the other side do the same thing slowly bring that in there's my edge and now i'll look up here on my digital readout let me show you this so again we went over to the edge i zeroed it i then came to the other edge the measurement is .775 and what i want to do is basically just take that and divide it in half and that will give me the center between those two jaws so to do that i'm going to hit my half function it's going to say to select an axis i'm going to hit the y axis and it divided that in half and now i can just dial that into 0 and when i get to 0 i'm exactly halfway in between them so we're six tenths off there yeah it's uh always kind of fidgety to get that last tenth but basically the zero there is the zero i'll fool around this gets set on zero lock my table in that direction so now with this right on the center i'm going to find the edge of this outside piece and we'll just bring our table in drop that down [Applause] come back out here same thing when it scoots over i have found the edge there right there so back over to the digital readout here we're on the x-axis now i want to zero that so i'm going to zero that out so that edge is on zero now my edge finder is a half inch in diameter so first thing i need to do is to get the center of the edge finder to the edge of that piece right now i've got the outside diameter to the edge so i'm just going to bring my table in half of a half inch is a quarter of an inch 250 thousandths so we'll just bring that in 250 thousand right there so i'm going to zero that again and now i want to go in an inch and three quarters so 1.75 so i'm just going to dial that in it's going to measure that for me inch 750 is what we're going for and that's close enough i'm this is going to be turned to the outside diameter so i'm not too worried about it i'm just going to zero that again right there and that is where i need to drill my hole on this piece i think we are ready to go i'm going to start by just putting a little hole in there to get the hole started before i do though i'm just going to put this up here this is the original i just want to make sure i'm just eyeballing that and that's about center and yeah that's about where i need it to be to give me a little bit of room on the front here to machine that off so just a quick verification i'm just gonna use this uh spot and drill to get me a whole a little dimple started there and swap that out we'll put a uh this is a 3 8 inch drill bit going right direction and we're just going to drill all the way down through all this uh metal this is just a starter hole i've got those uh blocks sitting up on a parallel in the bottom so i've got room to come out of the bottom before i hit my vice go ahead and drill that all the way down [Applause] through all right we are all the way through it looks like this top piece is not yes it's kind of floating in there i may just take that one out and uh finish it up by hand at the end let me see if i can get this tighter yeah i'm just going to take that one out and um my jaws on this vise probably aren't ground perfectly parallel i won't use this vice very often but no big deal we'll do that one in another step next i'm going to uh i think this is a 9 16 inch drill bit just going up a size [Applause] next 7 8 inch slow my rpms down just a little bit [Applause] all right next step here is my final hole diameter needs to be 15 16 of an inch and uh to get it that size i'm just going to use a reamer here to just bring it right in there now this reamer is a brand spanking new reamer never has been used and we're just going to run it down through the hole and that should get us right on size so i'll slow that down considerably there we go i'm gonna put a little oil on this i'm cutting in the right direction yeah it's just got a left-hand turn on the it's going to spiral up just run this one down through there it's slowly cutting it out reamers are really good for taking something to exact size they're much more accurate than a regular drill bit they got a lot more cutters they're ground a little bit differently than a drill bit you typically want to just make light cuts with the reamer but the nice thing about a reamer is is that when you're done as long as you've got a good reamer it should be right on size and uh they've got a really nice finish inside that bore all right i'm gonna pull these parts out uh i will come back and do this one here uh i'll do that one off camera just go ahead and run through the same steps and get it knocked out as well all right we've got our holes all drilled out and ream to size again this will be the one that we turn in both directions these are all ones that'll just be in one direction and they're all a little bit long on the back side no big deal but what i want to do now is get ready to turn these all on that center diameter on the lathe so that we can get the right radius on the one side and on the this one here obviously have radius on both sides that way we can get a good measurement on it like we talked about before so to do that i'm going to have to make a mandrel to turn this on over in the lathe i dug around found a piece of scrap stock laying around this happens to be inch and 7 16 inch in diameter and a game plan here is is we're going to turn it down to this line from the end uh to 15 16 where all four of these can slide up on there we'll come up against a collar here a shoulder and then on the end i'm going to turn that down to 7 8 of an inch and thread it so that we can put a nut up on the end with a washer tighten it down and basically just clamp everything onto this arbor then we'll put this in the lathe and turn it to size so let's go over to the lathe and build our arbor we'll also use this arbor when we mill the teeth it'll be what holds it uh while we're putting these on the dividing head so this arbor will get used both on the lathe and on the milling machine and dividing him when we cut the teeth let's go make the arbor over at the monarch model k lathe here and uh the last time i used this lathe i had the collet chuck on here and instead of putting a three jaw or four jaw in here i'm just going to use the collet chuck for this job so i have a inch in 7 16 inch collet that i put in here and we'll just tighten this up and that will hold our work for us there i'm going to start by facing this outside on here we just got a rough sawn finish on that right now we need just a little bit more all right next i'm going to come in here with a center and center drill center drill and we will drill a center hole in the end we will put this between centers or put a center in the end just to give us some added support down here [Music] as short as it is this probably doesn't need it really bad but it never hurts to have that and we'll use it over on the milling machine as well and i think we are ready to start turning here and let's uh go ahead and feed across there there we go [Applause] see what our measurement is so we're at one inch 357 thousandths i'm going to just going to put that into my digital readout so i can kind of keep an eye on where we're going uh we're shooting for 15 16 which is point nine three seven five we'll just take a hundred thousandths off here i will just say guys that i'm i'm using this digital readout to help do my my measurements now and uh i'll be honest with you i've i've not used to using the digital readout which is wise it may sound like i'm stumbling a little bit because i'm i'm trusting the numbers up here rather than doing math and reading dials like i've been doing for years and years and years i think i'm going to really like the digital readout but it is a little bit different process in my mind to process the information so i'm kind of learning this as i go i know what it's doing but uh the way i did this and i know you didn't see this but i made my measurement and you can go in here and actually once you make your measurement just type in what it's actually measuring and then you can just dial your number in right on the digital readout it's really slick but again it's a different process than my brain's used to run the lathe so while i'm sitting here trying to talk and tell you guys what's going on and thinking about how to do this without screwing up it's uh requiring a few extra steps in my brain which is a little bit challenging so next step is i want to turn this in down to 7 8 and i want to turn it down just beyond where all these are going to stack up to and that way i can thread a nut on the end and just kind of jam all that up against this back collar so i just took a sharpie pin and made a mark there where all these stack out at and that gives me my measurement to cut down to and we want to go to 7 8 of an inch which is 0.875 i'm just going to dial into 875 right here on my readout it should be right there and we'll feed across and that should be right on and that's reading right on the money so all right we're ready to thread that end so i think we're about ready to start threading here this is going to be 7 8 inch diameter 9 threads per inch should have the lathe set up here chamfer that leading edge a little bit touch off here all right let's make the scratch pass here and check that with my thread pitch gauge and we are on nine threads per a little inch on there and we'll go ahead and thread those in there getting close let's see what that looks like a little bit more [Music] try that i think that's gonna be just fine right there yep perfect fit all right it's got our threads cut a little tight on the end but not a problem at all still finger tight it just come in here and break that corner right there just a little bit there we go [Music] i usually like to just kind of hit the tops of those so they're not too sharp and i think we are ready to assemble this thing i'll put a washer on here tighten that up real good and i think we're ready to turn these all right so next up we want to turn this outside diameter on this large one to 3.33 inches so uh i'm gonna come in here we're gonna just go until we just touch off we will have an interrupted cut here so i'm going to take some fairly light passes through here let's see i need we'll cut across all of them let's see what we got there it's just hitting the corners right now and that is a little bit of a coarse feed i'm going to slow my feed rate down just a little bit let's take another pass across there a little bit slower feed rate all right let's keep on going because this is an interrupted cut i'm only taking about 40 thousands per pass when i say interrupted it's not cutting solid all the way around it's only it's basically every time that thing comes around it's hammering into that carbide insert if you have a cut that's just cutting constantly all the time it's actually easier on your tooling than when you have a situation like this where it's interrupted and it's kind of beating on it so i'm just being a little bit conservative on my feed rate and my uh how much we're feeding in at a time just so we don't uh hammer on it too all right we're cleaned up all the way across now so let me measure that again we're going to 3.33 is what we want our final measurement to be there 349. so three inches i'm gonna type in three point three forty nine enter i'm going to 333 i'm gonna do it in two passes just so that i can kind of confirm where we're at still don't trust this digital readout 100 i'm still learning it so i'm just being cautious all right let's uh measure that [Applause] so we're at 3 38 right now and that's exactly what is reading on my dro as well so i'm gonna go just dial in 333 and we'll let her roll across there we should be right on size all right and let's confirm here and we're right where we need to be 3 33 actually about 3 30 and eight tenths so about two tenths under so we're good all right um that radius should be correct now for our little gear and uh this is ready to go over to the horizontal milling machine to cut the gear teeth well there we go our blanks are starting to take shape here as you can see we've got four blanks on here and again just reiterate the one on the top i did cut to the full diameter that allowed me to easily measure that diameter uh to the proper size even though the back half of that's not going to be there as you can see here when we're done the other thing this is going to allow me is when i go to cut my gear teeth i need to measure across those teeth to properly know the the total depth and it's easier to do that when i can measure directly across so we left one of them intact the other ones are just roughed off the length we will cut those to final length once we get all the gear teeth cut i'm just going to leave it on the mandrel and this will be ready to go straight over to the milling machine and to cut the teeth and we're going to do that and another video coming up soon so there you go making progress on these monarch 10 double e segment gears well there you go guys uh that will be a wrap on this episode i hope you enjoyed seeing that something a little bit different uh turning segments like this right here is a little bit of a challenge having to make a custom arbor to hold it and having interrupted cuts and so forth but you see the process you see my line of thought and how we're going about solving this particular problem at hand and we'll come back in an upcoming video soon show you cutting those gear teeth and hopefully have these parts knocked out and ready to go and with that that will be a wrap as always guys thanks for watching please do subscribe to my channel if you haven't already uh thumbs up and comments are appreciated please hit that bell icon so that you get notifications when new videos are posted and we'll catch you on the next video thanks for watching [Music] you

Channel: Keith Rucker - VintageMachinery.org

Views: 42,170

Keywords: Machine Shop, Machinist, Lathe, Milling Machine, Restoration, Vintage Machinery, Woodworking, How to run a lathe, how to run a mill, Keith Rucker, VintageMachinery.org, monarch 10ee, monarch round dial

Id: iz9mB9aeoE8

Length: 29min 19sec (1759 seconds)

Published: Fri Apr 02 2021