Ball Turner

hey guys welcome back to the shop I'm Joe and it's a cold and rainy day here in Massachusetts and that means we're gonna make something and this project I'm sure that there's a ton of videos on YouTube about it and the one that inspired me to do this was krispies mark two ball turner using a boring head I'm gonna do some stuff a little different than what he did he had some issues where he had made or he had used a different kind of tool post and he had some clearance issues and I'm gonna make mine to take care of some of that stuff and one of the things I'm gonna use here is I don't know if you've seen his video but he made what he called the bearing block and then he put it into his foresight of tool posts and what I'm going to use is a boring bar holder which is a three quarter inch diameter quick change tool post thing as my boring as my bearing block and I've got mine off my boring head here and I got this big hunk of alloy tool steel I'm going to turn that into a ball turner so stick with me and we'll do some wave work here okay so the way this is gonna work is this is gonna fit into my tool post and this boring head is gonna fit right up on here like this and rotate it like that what I'm gonna do what I have to do is figure out how long to make this what I'll call the shaft here for screwing into this thing this is a one and a half 18 thread this is a piece of 2-inch bar this Odia this boss right here is two inches so it'll fit right up nice on here like that okay I'm back and well I gotta tell you my bandsaw the way that's seen better days one of the things about having a blade welder is get a blade and you strip some teeth off of it you tend to just weld in another piece and yeah that thing it saw blade over there is made up of about six pieces so it's it's a little wire we [Applause] [Music] [Applause] [Music] [Music] [Music] [Music] [Music] [Music] thirty thousands cut right there don't push it any harder [Music] [Music] well we got quite the pile of chips going here just pausing for a while let this thing cool down usually I don't wear a long sleeves when I'm working a lathe but man these things hurt when they itches so I do have my sweatshirt on today and just being extra careful to not get near any rotating components but yes be brutal all right this thing here is getting pretty close now so taking my little hole gauge and I measured off the idea of this thing and it's 754 and that means I gotta take 64th I offer this alright after a little polishing with some sandpaper and Emery you get this thing polished out to a nice bearing fit okay so we got this mounted in a collet and I'm starting to turn down the OD of this thing I'm gonna make a little quarter inch shoulder here for the little boss here so to butt up like that and then the rest of it I'm gonna thread [Music] right that should be pretty close okay set up for threading here 18 threads per inch got my iskar threading tool in here cop-out set at 30 and it's gonna do a little scratch pass here so put on down of a cut let er rip yeah that's 18 yep okay [Music] [Applause] yep okay all right I got a piece of scrap chucked up here and I just been drilling it out I got to get it out to three quarters and I want flat bottom Hall what I did off camera is I faced this off to 90 degrees so it butt up against my bearing good and I'm just going to go in one point zero seven five on the tailstock dro and that should get us to where we need to be [Applause] what I've done is I've sent using an angle block I've got my piece in a call at block here one in 1/16 you got it mounted in the vise at a 30-degree angle and I'm going to drill down so what this is is a shock rod and my shocks replaced a little while ago and they always ask for the old shocks back because you can cut the rod out and it's real good steel so just read this and I think our first project will be turning a ball for the end of that I'll see what happens you've got to call it in here so I don't don't worry about that you're catching me I got it on a bulk and I'm on center this way and this way so let's see how this thing cuts let's try it on this be watching yes well I must say it's definitely more well behaved I think I could probably improve this tool a little give it a little more relief on the backside yeah this is sweet get rid of some stringy bastards I think this might actually turn out to be a pretty good fall awesome once you get over the cornice here becomes much easier now I don't know if you notice what I prepared this my putting big champers on the ends on the edges here and Julis was saw the truck on there's definitely a good thing do I experiment with some on some chip breaker type cuts on some of these bits see if I can get these chips to break yeah this is awesome it's gonna make a good one [Music] all right I think I got about fifty thousands more to go and this is going to be a spear those make some decent bird's nest I'll tell ya I don't know if this to do this will steal it might break better yeah that's almost a sphere more passes and now we'll have it free share all this tool spring is because of the vault I'm using now it's hanging out there pretty good it's only a three days fall almost there we just starting to touch the center this might be it right here no more girls oh yeah baby that's pretty cool alright I'm betting that's about exactly an inch and a half so let's find out here that is awesome one point four seven five so I started off with one and a half inches in diameter one point four seven eight actually but yeah that worked out pretty good not bad for okay so what have we learned here we have learned that you have to have you have to do this by changing the radius of the cutter you can't move the cross slide or the saddle and it has to be exactly on center Inbal facts ease in other words it has to be on set of this way and it has to be on center this way so that it'll sweep across the whole thing as far as the cutter goes that's all I had now I think if I was gonna do this over again kind of tilt this down a little or grind some relief on the back of this so that I it wouldn't rub cuz I could tell like right at the very top of this ball there was a very slight bit of rubbing going on with the backside so you get that put some relief on there okay so there it is pretty nice pretty nice aluminum ball I think got to experiment a little bit with some tool bits John Mills was he using a mill a broken milling cutter Chris was using a piece of high speed steel what I have in here is a piece of 3/16 carbide [Music] so anyways yeah success thanks for watching

Channel: Cuppa Joe

Views: 84,388

Rating: 4.6975226 out of 5

Keywords: cuppa joe, metalworking, machine shop, lathe, mill, rong fu, ball turning, ball turner, boring head, threading, metal turning, milling machine, bridgeport

Id: _0Xl22zzB70

Length: 31min 37sec (1897 seconds)

Published: Wed Nov 08 2017