Traveling Squareness Comparator Part 3

[Music] welcome back doc stools on top so this is part three of the the squareness comparator build and what we're working on in this particular video is these these side plates here and this actually I'm calling this a snug and the idea is that it snugs the this rod that gonna hold the indicator out here while this thing travels up and down okay so they'll be a little dovetail mount at the end of this and that's yet another video so in this video we're gonna work on these guys here and kind of prep those and work on this we have some excitement mister mister bozo visits a shop so there's some action-packed sequences for your viewing pleasure buried in this video let's see what else I think that's about it and then the next video we're gonna do I get some ideas for a pretty fancy knob that goes on here so that'll be the next video that'll be what part for answering a couple of questions some people asked why for feet instead of having just a continuous rim around the base now this isn't the base I've got it it's been sent to the heat treaters so I can't show you I can't show it to you right now the thought behind that is that four feet are much easier to correct for perpendicularity because what we're trying to do is make this pin perfectly square to the surface play right so if I lap that Floyd I go that way if I lap that foot I go that way laughs when I go this way right so that's kind of the general idea there and if I have a continuous rim that's a lot of surface area to lap to correct for any kind of out of perpendicularity so anyway that's kind of the the reason behind that us to have you know small local feet there's a lot easier to lap and then somebody asked about this little device here that I was using and this is just a let's turn it on here and you guys can see what's going on it's just a one inch travel electronic indicator and I made a little base for it which I lapped the bottom of and the idea is you know you can measure you can measure little steps like that and just read read off of the for the indicator what that distance is now you set it on here that will work anyway you set it on a flat surface like that and you kind of zero it out I can't read it right now I might be on sitting on something there and then that just projects out so it's kind of nice on the surface grinder you know if you're if you're doing a step you can come over and kind of interrogate that step and just get a quick reading and then this doesn't want to stick to the magnet or the energized surface grinder magnet as aggressively so anyway somebody asked about that and this is homemade this is actually kind of a fun little project that that you can do for yourself if you have it honestly it doesn't even have to be an electronic one I just happen to use an electronic one just because it's kind of nice and I turn it on and it remembers where it is to so which is a pretty cool okay anyway that's the story on that so let's get started let's work on these side plates and in the snug here and let's see what happens maybe on the CAD if you'd draw an itty-bitty little circle at the center of all these it's actually an excellent center punch line up dot we're going to use the the Milwaukee porta ban on the swag off-road stand so I bought one of these stands from swag off-road and well show the the logo or I'll put something in the description and outside screwball he made one and I figured out I'll try one of these out and I actually kind of liked it one of the things that's the benefits of it is I can keep kind of a fine tooth blade on this one and then have a a fairly coarse blade on the big do all and I'm gonna have to switch blades and this is great for a little little cut off jobs like this on thinner material so kind of works pretty good so I just leave it set up over here and then right [Music] sometimes it's just easier to to use a spotter on something like this you know where you have kind of a an odd shape so see I'm just feeling the center punch mark there I'll lock the quill it's a fine line there guys okay like that and I'll just slap a couple of clamps away so alright you know you'd have to figure out some kind of tricky holding [Music] device or whatever and I can just pop through blink ya know put my pointer back in it's just a couple of holes so just go over there because it would be easier yeah sure gonna have to get right in it because if I have the piece loose like this and isn't it great straight punch right through mr. wizard maybe I need to center push another because then what I'm gonna recenter push it I don't like that one so it's this give it a little web like I didn't like that center punch mark okay so hold it there hold it down and clamp it down alright it looked a lot harder than it was [Applause] [Applause] we did it [Applause] [Applause] [Laughter] [Laughter] [Applause] you guys have seen me do this before he's the simplest measuring tool at the particular time in place all right so we're pretty close I'm going to take an accurate measurement now and so we got going for one inch and what I want is a flat bottom to that step is what I want nice kick [Applause] when you have little steps like this that are very deep they're kind of hard to get a measurement specially with calipers and and and telescoping gauges okay so we got three thousands to go here you know but these are great because they have these little short and these are carbide pins here on this one this is a mid Eto'o inside Mike and this one's cool because it goes from point two to one point two and it's nice because you can measure really shallow steps with this and they make larger models to that go up to approximately three inches but these are a good way to measure little steps like this what I say three thoughts and this reads half so that's basically usually when you're boring like this you know if mister bozo wasn't around he would have left a little more space in here so mr. micrometer would fit in but sometimes you forget and but it's not the end of the world to move off-center and come back to it and this theoretically is the finish cut so what I'm going to do is I'm going to I'm gonna dwell at the bottom a little bit let it polish that bottom that bottom step a little bit and I'm going to come up nice and slow alright there's the finished part well finish side this is the the snug the indicator will mount on the end of a rot this rod here this is a hardened in ground rod so I'm making the snug that will attach the this arm to the sliding part so anyway let's put this side on because it's kind of done and and we can work on the other side the other side just gets a straight hole through it just a nice clean hole fasteners there this gets a nice clean hole through then we get to to make a really cool knob I got an idea for a pretty spiffy wide knob so there it goes headed bozo there all right so we'll put this hole in a part I probably won't show that because that's just a straight half inch hole but we have some lathe work coming up here a bronze a bushing sleeve and then the the part that that actually does the snugging on this rod so let's go over to the lathe and let's hit the lathe alright there's our our little snug so that hardened rod I showed you it passes through that hole a 5/8 hole this will be threaded I didn't show it it's just a little thread relief there and then this retains it in the the ears on the comparator and allows us to compress it there'll be a bushing that goes over this it you guys will see it a little bit I just wanted to show you little this little chicken sketch I did just make it easier at the lay there all the mentioned off of this end so I get this kind of work in this direction then part it off and be and then go over to the middle and do that so let's let's get started on that little guy all right this is what we're using for that snug and this is 17 4-h 900 so this is this is actually a really neat material you guys should look it up and understand its qualities it's what's called a precipitation hardening stainless steel it's kind of neat so it uses a kind of a long slow heat treat and to bring it up to its maximum hardness of yeah I don't know 4045 Rockwell something like that 48 maybe on a good day on a small piece maybe but what's neat about this is you can machine it in the hardened state and this is as hard as you can get it this is the the this kind of specifies the heat treat so it's a 900 degree Fahrenheit soak for you know X number of hours I don't know what it is but a machine is really good in the hardened state and it's very corrosion resistant similar to 304 it's slightly magnetic so you can't use it for for everything if you need non-magnetic but it's extremely strong to I think over 200 thousand psi yield strength so pretty pretty neat stuff and you can weld it so you can weld this to other stainless steels and to itself and things like that so it's got some some kind of neat qualities but that's what we're gonna make our snug out of here and it'll be nice and durable and corrosion resistant and yards so let's want to make sure you got enough sticking out here yeah that looks pretty good like all right get that get that indicated and and let's do some mix of chippies huh [Music] a little bit to go [Applause] all right so we're just gonna put a little little thread relief in this hopefully it didn't squeal too much [Music] so this is going to take the radius of the insert radius out of there and what this is going to do and we're just going to cut in until we get a full profile [Music] [Music] okay I thought I guess I Stan it's got the faintest a bit of chatter in it there but I think that's fine we'll break that corner just a whisker that's just so that we sit against that shoulder on you know with nothing to bind it so okay okay [Applause] [Music] take your time for a check I don't know if I've showed this before but you know and I'm doing simple threading like this where I just wanted to fit you know I just have a collection of all the sizes that I've messed around with and I just keep these are Jam nuts and they just keep them on a on a wire these are fine threads and then I have one like this for for coarse threads so let's find that appropriate to a little dude clip or whatever a bit check okay all right that's pretty close [Music] that's true [Music] that's what's cruds kritsky in there so some people may be freaking out the sustainless a stainless nut on a stainless chef but remember that or well point out that this is 316 stainless the nut okay and it seems to fit fine now so I want see its mark and this is 17 4 so we have a real high differential hardness between these two materials so they're not going to they're not going to do the bad stuff that stainless nuts do on on stainless fasteners all right okay I think we're happy with that now a tap tool will fit a little bit different than that but I'm not too worried about it so this is for the knob here let me take care of some icky little burrs there and then we'll part this off [Music] [Music] [Music] hear that noise and you getting close look at that finish and stuff you get a good finish and I want it doesn't squeal I guess [Music] stay [Music] [Music] theoretically theoretically this should go through here yeah give a teeny little I'll slap that off of there it's get a little tiny little pip I can just barely feel it so and then mr. knob goes on this side here and you can see there's a little gap there that's intentional and the idea there's a bushing that goes around this so the rod will pass through this rod will pass through and the hole will be slightly offset in this piece here and it'll pull up and compress that and lock the bushing and then lock the rod at the same time so it's you know it's kind of a standard snug deal I get some fancy plans for the knob which should be kind of fun but meanwhile let's we gonna as part of this design here we got a pop a hole through there that fits fits mr rudd we're gonna set up we're gonna put a hole through the side of this round hole unlike that one but this is you know fairly tough material here and I want the hole a couple of qualities of the hole I want to accurately size so it fits the rod well and I also want it centered real well in this piece here so you know you can put it this way but I think what we're gonna do in this situation is we're going to put it this way okay and allows me to access this real nicely get centered up on it real well we need to support it in this case particularly well because we're going to be will be pushing on it with a little bit of force so what I'm going to do is parallels here because what I want to do is I want to put a little little ABV block under here so and support that like so okay and I'm just gonna lightly clamp it okay so that's not bad but it's not great either so here's what we want to do is let's see can you see that under there yeah this I want to put something under here to support that and this is you know and I've showed these lots and lots of times and so has Adam but if you don't have a set of these you don't know what you're missing until you have a set of these they're just super handy for this kind of stuff here right so here's what we're gonna do we're going to lower down I'm gonna stick it under there and we're just gonna slide it until it catches that little that little rim and I don't care what the diameter is I don't give a hoot right so now I'm bucking up against that nice and tight what we're gonna do is we'll indicate over the top of this to make sure we're not tipped and so now we're supported on this side we're supported on this side so we can push with impunity here and I don't have to have this clamp to the moon to do that so so let's let's indicate that let's see what we got there see how it looks and we will go from there what I'm welcome you kick a lot if I turn this around what do you think of that yeah that would be nice for mr. wizard huh what do you think okay sure whatever all right so what I'm gonna do is let's bring this down until we make contact there and then I'm just gonna find the high spot there which is right there I'm gonna stress out too much about being on zero and then we'll go over to this side and then we'll give it a little sweep okay so that's low so we're we're just a shade low on that side half a cow let's a little dinkar here because what I'm gonna do is I'm gonna hold but I'll hold the end of this and then I'm just gonna tap this make sure that vice isn't too tight all right so okay and it's creeping up turn that down see if we're still on the high okay zero and we're now we're high on that end so let's let's see if I just push it down no okay doesn't wanna doesn't want to cooperate one way we can accurately pick up the center's is to use a split function of the of the the Dro so what we do there come down come over pick up one side zero the Dro I'm over to the other side in the same thing yeah okay nevermind it takes us back to the center that way so just out of curiosity we're going to use the edge finder method okay so what I'm going to do is I'm going to set that as my my absolute position okay which I just did and then I'm going to do it the other way I'll show you the other way let me get that tool and then try it again alright the other way is a little more old-school and what we do is we use an indicator and what we're gonna do is we're gonna use the the front edge here okay and we're gonna sweep that sweep that and find a high spot come down and I'm moving the x-axis until a zero out so I get two high spots I'm trying to find one as the halfway point of the of the rod and I find that by sweeping this or excuse me vertically so I find the hot the high point of the rod this way all right somewhere in there and then I find the max reading that way so I'm gonna bring that back to zero like so I'm gonna fish it again and sweep it again okay so the camera is reading away but he's gonna tell me if I'm pretty closer okay so that's pretty good now without moving the indicator what I'm gonna beep it and zero and I'm gonna come over on the other side this way and then I'm gonna do the same thing on this side and you won't be able to see the indicator so you you will have to you know have to trust me I'm gonna zero I'm zero down incremental and now what I'll do is I'll shift to absolute so it's dro says two tenths the difference between those two methods now the edge finder is is much quicker as you can see and pretty accurate so that's why they're so damn popular so this is Kennedy the the way that you know you were taught before you had good edge finders or they were commonly available so anyway [Applause] [Music] [Music] damnit mr. wizard oh you like that yeah here's this you'll like this so that was kind of exciting right but this is how tough this steel is is the part is unharmed which I'm kind of surprised now I tell you what happened here is because we have an uneven breakout it caught in the it it caught in an edge that was left that was still thick but you know sometimes mr. bozo gets lucky right and look at that I mean act frankly I'm shocked that the part isn't chowder duh but as you can see well you know what okay so let's let's think about this for a sec so you know I'm squeezing on it like this right okay I'm squeezing on like that now I've I've relieved a bunch of material here too so it's possible that we lost some vice tension too and as part of the problem but you know the feed pressure on the handle here was pretty minimal honestly I'm kind of surprised so I must have lost a little clamping pressure and you know what I kind of got lucky and is what it looks like so let me get it back in there it's still not the size yet that's not the that's not the size and I wanted to bore it too so the holes nice and straight so what we'll do is we'll we'll set that up again and get it straight with the world and then we'll go back in there with a boring tool and hopefully mr. mr. bozo goes and visits South Florida or something like that for for a week [Music] you [Music]

Channel: oxtoolco

Views: 32,928

Rating: 4.9685264 out of 5

Keywords: Heat treat, 17-4 Stainless, Metal lathe, Indicator, Metrology, Comparator, Bridgeport, Milling machine, SIngle point threading, Parting off, Spray adhesive, Rotabroach, Mini pallet, Drawfiling

Id: DawgATv7XtA

Length: 43min 58sec (2638 seconds)

Published: Tue May 08 2018