Federal Flex O Laps

welcome back doc stools on time so today what we have it's a kind of the tool review and what it is is did a little horse trading with a fellow youtuber and I had something he wanted and he had something I wanted so we made a nice trade and so what we're gonna do today is we're gonna show what I got and it's a set of laps neither for lapping whole IDs and so this is a subject of interest to folks that want to do precision work or get precision fix so what I thought we'd do is demonstrate those on camera and how they work and how controllable the the results are so we're gonna do that and have a little fun with that and I think that's about it let's go give me a pen and let's go check out some laps okay so this first item we have here will horse trading with another youtuber and I got a little I got a little sign bar in a there's a purchase and some stuff when I bought that little Leblon grinder but I have a pretty good selection of sign bars anyway this is a Ben's enter ended up with some adjustable laps which are kind of interesting and I don't have any of this type I have another type which which I'll show you in a sec here but we'll talk about these as briefly here now these all most of them look like they've been used some of these look pretty good it looks like it was a set at one point and you can still buy these actually you know what it's let's talk about here so we can talk here that one looks pretty good that one and then look at a big okay set the rest of the inside so this it looks like it was a set some of them been used and some of them are worn but these are brass slaps and they have a little adjusting cone on the inside here that can basically as you tighten this screw up can wedge this open a little bit and then so the idea is that you can do this a couple of ways right so you can you can preload these a little bit and then you can turn this diameter so that it just barely slips into the into the bore that you want to lap and then give it a little tweak and charge the lap with an abrasive compound and we'll talk about the abrasive compounds in a second and then excuse my my gesturing here but this will be turning and it's kind of like honing a cylinder so the randomization of the rotation and the stroking averages highs and lows in the bore okay now this doesn't really take a lot of material out this is from removing and improving surface finish this is for removing very small amounts and an improving surface finish okay it does correct a little bit of geometry too though it makes the hole rounder and and average it finds it won't move the center but it'll it'll make it rounder okay that randomization is the key to that okay and then here's a smaller one and maybe we can get that get this apart a little bit better and it was actually a good choice sir this one's loose on this end it's kind of hard to see down in there but anyway there's a there's a little hole down in there that this wedge is into that opens that up and so you know I believe once you get the shanks or whatever and you maybe wear these that you can buy new new center sections so that's that's one type of adjustable lap now I'll show you another one here this little set here okay here these are eyelet I'll apps I have always called them I'll apps and these are the little adjusters form but basically they kind of look like a these are real cheap by the way that one's kind of tweaked but you charge them and that's a these are lead those are led laps they're led just slid it feels like lead I don't want to bend it to find out but it looks like lead and then this is copper these are copper laps so you you put these in the slot then you can kind of open them up till they fit your they fit your bore and once again you charge them with abrasive and then you use stroke in and out in and out and in and out and you can lap an ID a circular ID okay now and these go really small here you can see that when that's probably thirty thousand sore something like that so you can you can lap some really small holes okay and then you know you can go out to larger sizes okay so what's also neat about this is you can do very hard materials heat treated steel drill bushings bearing IDs if you care to modify them probably even carbide bushings or holes or something like that you might want to change the size of those our acro tool needle laps they call them okay I always call them eyelet I'll apps and those are the little tools and then these are made by federal tool and these are flexible apps okay so I'm gonna cut the camera here for a sec and then I'll bring out these abrasives and we'll look at we'll look at some of the abrasives that you charge these with okay so here we got a couple of different types of abrasives here this is the the classic stuff here that everybody kind of knows about from the olden days when you used to real app your own valve seats yourself in the garage they had soft seats so you could kind of reel app them yourself this is kind of I would say out of favor a little bit mainly because it's very difficult to clean up so if you have something that you've done and you want to lapse two surfaces together it's very hard to get all of this out of there because of the matrix this is in it's it's real - now I'm not even gonna open this it's tenacious and you know you can clean it off with solvent but it's a lot of work okay a superior product the way is this is this time saver stuff okay and I'll put a link on the screen here for you guys to look at and you can look you can read all about time saver so what you do with this stuff and this is a four soft materials and then these are for hard materials here so this is an abrasive powder that you mix with oil and make a little paste out of it and then you would you would you would charge your lap with this and and then do your your lapping okay now what happens with this after a while is this kind of dissolves and it turns into an inert compound and it's not abrasive anymore that's the beauty of this so where you see it used is where maybe you have a large gear box or a differential or something like that you can actually lap the gears together by mixing this with the oil that's in the gearbox lap those gears together until you get the right kinds of tooth contacts that you're looking for and then change the oil put fresh oil in it in your and you're good to go because the abrasive has become inert it's not abrasive anymore now if you use this stuff basically you would have to completely disassemble that gearbox again clean each part meticulously again and then reassemble it and have the same problem because now it's reassemble potentially a little different so you want to still lap those contact faces and you see this a lot in expensive high horsepower gearboxes and things like that where they want to to run really smoothly for a long long periods of time anyway this is a superior stuff check it out there's the link and anyway those are laps and then maybe we'll will demo one on a see if I can find something that we can that we can lap okay so we got here we're gonna we're gonna try one of these flexo laps out and this is a 3/16 diameter here and I cleaned all the crud out of this one so it's kind of ready to go and then what I did was I took a piece of steel and I drilled a hole through it and then reamed that hole with a reamer one eight seven zero and so this just goes in there does what we expect it to but what we want to do is we want to we want to change this diameter a little bit and try this lap out with some of this timesaver stuff okay now when I got here this is a set of Deltron X gauges and these are fancy plug gauges that are 110 thousandths of an inch increments so this is a a nominal 360 size and what that means is that this Center one here is 180 seventy five and then on this side we go and one one ten thousand steps down one eighty seven four one eight seven three one eight seven - blah blah blah and then over here same thing we go up plus 1 plus 2 Plus 3 plus 4 plus 5 so on ok so that's how those work and these are class xx so they're really accurate and so let's check our hole I dreamed it one eighty one eighty seven zero so let's set the one yeah so there's one eighty seven on the money all right well that flies in there it's not really wiggling there but let's let's keep let's ramp our way up here and figure out what we got let's jump with a couple here and you got it you know gotta have a little bit of a light touch with these okay that's fitting pretty good there but it goes in you know it goes in easy still all right so we're sneaking up on it okay this is one eight seven four okay so it's getting tight as it comes out there okay I can get it to go through it's pretty tight okay all right so that's one eight seven four let's just leave that one propped up there and then let's try this one here nine seven five and always double-check your pin sizes if this you know some knucklehead will put them out of order all right so that started oh that's going I can't get it all the way through though okay so we're between 187th sorry got a 187 four and one 875 so we're discriminating you know fifty millions there or whatever between but I think this hole has some geometry problems because I can get it to go most of the way okay but we we won't come all the way out the other end so this is exactly the kind of defect that that lapping will correct okay so what we're gonna do is we'll mix up a little bit of this we got the hard and the soft so I don't know let's let's use the hard and this would be like brass and other materials I think so we'll mix a little bit of this with some oil and we'll make a little paste and we'll charge the lap and so now that we know the size let's let's write that down here Oh point one a seven five point one eight seven four okay so let's let's target let's make a target of all right I like sevens so when oops one eight seven seven okay so let's make that our target all right all right and then so let's do a little lapping and let's see if we can hit that number and and and I don't know finish that whole to that size all right so let's put that back back okay let me get sent up for laughing and then we'll show that okay so let's see what are we gonna use for oil we use a little bit of a little bit of way lube here it should be plenty let's step it out with that one okay close the container you don't want to tip that over you tasty so you're not really trying to dissolve it you're just trying to get it mixed up to make an emulsion there all right and you should have got this stuff ready first [Applause] and open this up a little bit because I remember it it was loose on that hopefully this one will open enough to get on here I didn't check that okay there it goes I got a little bit of tension there okay a little bit of tension and then I'm gonna put this in here just to so I don't you know I can hold it in my hand but I don't want to I don't want to heat it up with my the heat from my hand too much since we're trying to measure a small okay be sure to wear an apron okay so I'm just gonna do a little bit and then let's check it because that might have straightened the geometry of that whole enough so that we want to we want to get a good check so let me clean that and then we'll we'll pin it and see what it is so this is our one eight seven five pin that we couldn't quite get all the way through but now it goes all the way through okay let's try this seven six let's get some Wiesel snow out there okay there's seven six it's just going not super-tight we might be able to get the seven seven in right now so let's try that you see that was pretty quick but basically we were knocking the high spots off of whatever was in there right and okay this isn't soothing I got it started just a teeny bit okay go to that so not quite let's try it from the other end this is one eight seven seven so we just need hit so now yeah here's the twitchy part that's our seven seven we just need like a couple of strokes now I think see can you see that and you're back on there yeah okay that's cool all right let's get another all right so about half of what we just did right all right let's try that let me I'll clean it off camera cuz it takes a few minutes to get that stuff out of there so okay so I poked it I poked a little wide through there just like kind of like cleaning the gun there so they clean it out so let's see how we did here and there's our one eight seven seven okay and it just goes it gives you an idea how tight it is okay and let's try this one here which should be seven eight yeah let's clean that huh let's see if we can get that one too [Music] oh well like we missed our target a little bit there but we got that one to go that was a 187 seven so that was gonna get stuck all right one more let's try one one more up so this this green stuff here is it's actually pretty aggressive I'm kind of surprised how fast that cut student I also this you know this is might be getting warm too from my hand maybe I'll leave it on this steel plate for a little while and then we'll check it again all right that's not going let's let it sit for a minute then we'll check it again but I think we overshot by about 1/10 maybe a little bit more 10th and a half or something like that but let's let it sit there and cool off or equilibrate a little bit and then we'll check it again okay so we've let this this thing sit overnight and I kind of equilibrate again I've been holding it in my hand for a while so probably weren't getting a true measurement soon I can clamp it there reasonably well so we'll test it again this is 7-7 here all right seven seven goes seven eight yeah so always look at the number on the pin is some bozo probably put it in the wrong slot I mean there's seven eight all right so that's going that's going but he gets tight near the end so that I mean I can get it to go okay yep there it goes okay so that's pretty snug back there so we overshot by a tenth on the hole there this stuff cuts a little faster than than I expected also when you know when you have a rough hole the the surface has highs and lows so what you tend to do initially is knock the high points off and so the diameter changes rapidly so we we probably should have targeted a larger size to give us a chance to knock those Peaks down so that we get them more of the average surface so the closer you get to the there the higher the surface finish okay the lower the peaks the longer it takes to remove material out because there's just more material to remove so when you just knock in the peaks off it they come off pretty quick but anyway there's an example of these laps let's wipe that off so you guys can see it okay and then some time saver compound and and lapping a hole so thanks for watching you

Channel: oxtoolco

Views: 23,012

Rating: 4.9642324 out of 5

Keywords: Lapping, Laps, Deltronics, Plug Gages, Timesaver, Clover Lapping, Flex O Laps, Federal Tool, Precision Hole, Honing, Horse Trading, Viewer Appreciation, Tom Lipton, Oxtool, Nothing too strong ever broke

Id: 6IOiBeMKNyA

Length: 24min 35sec (1475 seconds)

Published: Wed Jul 09 2014