Monday Night Meatloaf 139

[Music] still here welcome back to ox tools i'm tom so i guess i owe you guys a little explanation where i've been for the last couple of months um i'll give you the short explanation and then they'll be kind of a separate video that dives more into the details so i'm moving my shop and not because i want to because i have to um they raised the rent on my place here and it kicked us in the rear end enough to start looking at other options and guess what we found some better options so uh ox tools is getting a new shop in a new location and it's all good and all cool and that's what's been taken up my time for the last couple of months it's been a pretty intense uh last couple of months working on that and getting all the getting everything lined up to do that but uh appreciate your patience and we're gonna do some meatloaf because everybody wants meatloaf right so let's hit some meatloaf and then we'll talk a little bit more about uh the move and moving the shop and all that and probably in the different videos so let's get to it okay this first one is pretty cool actually i've had this for a while a viewer his name's daniel sent me this a while ago we were talking on via email back and forth and it's pretty weird and i'd never heard of anything like this um it's actually for polishing kind of soft gummy plastic so this is ldpe here which is notoriously difficult to uh to polish and even deeper anybody that's machined this uh will probably testify the fact that uh you know you get these kind of fuzzy edges and cuts and whatnot and that's kind of hard to deal with um what this is actually used for which is kind of interesting is um working the edges of uh human prosthetics so like if you have a you know a leg or arm amputation or something like that and you have to you know put your put your human parts against the prosthetic right those edges have to be have to be polished and smooth really nicely right because it's you know it's basically rubbing against you all day long or whatever right well this is what they came up with uh to uh to kind of smooth these edges and round them off and and do a nice job on them and believe it or not it's just uh molded silicone rubber and this is you know it's like 50 durometer or something like that right and you know it's a rotary tool so you spin it and we're going to demo this in a sec over on the mill i'll chuck it up in the in the collet and what we'll do is uh we'll do a nice close-up kind of before and after this saw cut edge and you'll get an idea how it works i did a little bit here and you probably won't be able to see it that good on uh with the way the lighting is right now but uh we'll make sure you get to see that anyway daniel you know he he caught my interest so uh he said oh well i'll just send you one so he sent me one and here it is and it's this kind of weird looking thing right so let's go give this thing a go and uh and see how it works because it's very i would say counter intuitive that just silicone rubber with no abrasive in it actually can abrade uh soft plastic in fact i don't know if you can see it but there's you know i've used it a little bit right there's some what i would call swarf or you know grinding grit or whatever right uh you know little particles of plastic that are that are stuck to this so it kind of comes off as a as a dust it's not much to look at but uh let's uh let's give it a try on some uh notoriously difficult plastic right so here we got a saw cut edge in this ldpe and here's our cognac and it's spelled the c-o-n-e-i-a-k i think c-o-n-e-i-a-k cognac i'll put a link in the description where you know people can get a little more information on these too so but anyway there's a saw cut and you can see it's kind of fuzzy there it's kind of fuzzy there so let's give it give it the beans here so you can see that it's just smoothing that quite nicely and there's you know there's actually real chips coming off of that and you know it cuts pretty slow you know it's not a real regret but look look at the chips that are coming off of that but i'm getting a a polished finish on that uh on that edge right which is pretty if you've ever had to smooth and deburr this plastic you'll appreciate you know how this is doing here so yeah i mean it's just it's just a nice action right a nice deburring action on that but hopefully you can kind of see that you know white plastic's hard to film hey it works good on fingernails too anyway so that's the cognac there and like i said it's just a it's pretty i'm not putting much pressure on it here and the the cutting action is fairly is fairly slow so i would say you know quite controllable so i was pretty amazed by it so uh hopefully you are too if you've had to mess around with with soft kind of you know gummy plastics like uh like ldpe so pretty neat well this next one is kind of interesting so what we have here is we have a piece of uh um i don't know i guess this is ldpe foam here um you know this is just your packaging foam and whatnot um well a friend of mine at work he uh he passed away i know a year ago or so and i was you know we had to clean out his office at work so there was a bunch of personal property and whatnot that we had to get rid of or return or give away and uh this is something that i picked up myself here and it's called a wonder cutter and what it is is for cutting foam and um it's just dog simple so it's got two d cells in it you know cardboard tube pretty simple right and uh say that way okay and then my favorite part is the switch here this is the switch and then we have a now i don't know if this is stainless or nichrome or what kind of wire this is but it can take a little bit of temperature here so what we're gonna do is create a dead short here right there so that wire is getting hot theoretically yep like so i can smell it i can smell it anyway i just thought it was kind of cool that here's a uh and it makes a beautiful cut so i i worked for um the guys that own uh thrasher magazine many years ago back in a former life and they uh let's turn it off i just love the switch i just love how silly how silly simple this thing is right this makes a connection and shorts out and then uh um you know heats this wire up and then this is the uh you know this arc here is the is the tensioner for the wire too so kind of neat um anyway i work for these guys uh uh that own thrasher magazine they're they're since dead now and um it's run by different folks now but um they hired these uh they had a big trade show to go to and um what they did was they they hired these these kind of artist dudes or whatever they came in that had a bigger version of this a hot wire cutter and they bought this uh styrofoam from a company that uh insulates like you know giant walk-in freezers and stuff right uh big you know like warehouse size freezers and uh they glued a bunch of these blocks together and then these guys had this this this hot wire system like this and they they sculpted basically let's see if we can uh um we can recreate a little bit but they sculpted uh these uh um these blocks of uh foam right and created uh texture and uh and and cutaways and things like that and then they painted them to look like granite so they look like gigantic granite boulders um and uh they were they brought them in to uh some trade show that they were i don't know if they were showing skateboard stuff or what kind of stuff they were showing at this particular show but i was impressed with these guys with this hot wire cutter and then the the paint uh the painting of these blocks of styrofoam and it looked it looked just like granite i mean uh but you could you know you could pick them up and throw them across the room too so that was kind of cool now unfortunately i don't have any pictures of it but uh that's the way it goes anyway this this came from my friend jim's office and it's a uh a wonder cutter and you can make your own um with nichrome or some kind of high temperature wire probably stainless would even work if it's small enough diameter if you have a a bunch of foam to cut something like that you need to cut some specific shapes or or what anyway i just i got a kick out of it hopefully you do too so all right these next two these are from a friend of mine uh that uh has the uh auction and tool collecting disease real bad his name's andy evans and uh he loaned me these books to peruse and i've had them for a while so it's it's really time to send them back and in particular since i'm moving i don't want to lose track of them so uh i want to show them on on a meatloaf and um wet your whistles a little bit and get people looking for their own copies and uh and get these back to get these back to andy so we got they're both by the norton company and uh but they're they're real old um see i don't you know what uh i think i did not find a date in uh in either one of these [Music] yeah i don't think i found a date yeah let's look at this one first little known facts about grinding so robin rossetti and i talk about this um you know grinding in general has a lot of different um what i would call uh knobs and inputs right so um there's a lot of variables in grinding that affect the outcomes right so there's a lot of that's why a lot of people it takes a long time to to get control of all those variables and understand um how those variables affect your your finish your debt your your cutting action all the all these different things in fact robbins uh told me that he's planning a a real comprehensive video on this subject so i'm looking forward to his take on on all that but uh so meanwhile the rest of us go oh wow this you know grinding's a black art right so uh they had uh they had books like this right that kind of demystified or um you know let out the trade secrets uh of uh of grinding and uh anyway it's kind of kind of cool so uh look i got a couple pages flagged here we're not going to go through every page why did i have this one here oh perfectionist uh perfection consists of not so much of doing extraordinary things uh but doing ordinary things uh all right let me turn it around here perfection consists not so much doing extraordinary things jesus i can't read right now perfection consists not so much in doing extraordinary things as in doing ordinary things extraordinarily well jesus god tom it's awful right anyway that that's why i flagged it i just thought that was i've seen that somewhere else before but um um i just thought it was worth mentioning again so what else we got in here hopefully i don't have to read anymore my god that was terrible i should reshoot that oh i thought this was kind of neat so folks probably have heard that um you know when you when you look at at the grit or the swarf that comes off of a grinding operation when you look at it under a microscope it looks just like milling or lathe chips right and the reason is is uh you know each grain or abrasive grain in the wheel acts like a cutting tool right and and that's how you need to think about it it's not that you're wearing it away you're actually cutting it away right and so when you look at the chips that becomes um a realization that these are it's just like having a lathe cutting tool or an end mill or something like that it has a cutting edge and it it it cuts material away right and that's what the chips look like but i thought this was kind of cool in that uh for a two inch wide wheel and uh in one minute of of cutting at the proper cutting speed you got 117 million little cutting edges that are producing chips so i decided it was neat that they kind of connected it back to some number of of cutting teeth that that was uh in action there so maybe you're not fascinated by that but i thought it was kind of cool so so little known facts about grinding all right that's one and then we got the grinding wheel so let's uh uh oh you know what we're just going to keep going here all right so this is a wonderful graphic here right i've seen so many lame explanations about how to balance grinding wheels right well this graphic sums it up with absolutely no words okay so when you want to balance a grinding wheel right all right it's real simple you got balance weights and you got the heavy spot right okay so big out of balance weights here start moving the weights better balance move the weights some more even better balance move the weights oh guess what we're balanced and it's just dog simple and that's really how you the easiest way to think about how you balance a wheel right and um you got a heavy spot and uh and you got some weights to move around and that's how you do it um so dog simple so remember that diagram it's all all comprehensive there and there's a cool little uh little balancing stand too by the way so all right what else we got here um oh yeah here they are they are doing these uh jewelers rolls here and getting a uh just absolutely primo finish on them there too that was a kind of of interest there uh there was some information about uh how they did that they started with like a 46 grit wheel or something like that and then went to a oh 70 grit and then went to 400 or 500 or something like that so um you know so right at it right off the grinder they're yeah getting a nice finish like that so and then there's some carbide rolls that they were doing um all right what do we got here oh so this is something that i'm uh mildly interested in which is cylindrical lapping and this is like a little spitfire machine where you have a two straight rollers of varying diameters and you drop your your part to be lapped uh in you know your cylindrical part in the little gap there and you put lapping compound on the on the wheels and one is turning faster than the other so it creates a uh as a speed differential right so uh you get some ac you get some it's not just rolling it's it's uh it's scrubbing um so this is how they polish gauge pins and uh you know cylindrical injector elements and things like that uh this well this is one way you can do that so which works pretty good so um anyway i'm mildly interested in that uh what was on this page oh this is about granite about grinding granite so they have a whole section on grinding granite in here and they talk about where the big granite quarries are in the united states and some other interesting things no pictures though sorry on that oh and then the best part i thought was in this particular book in this particular era safety is the last chapter instead of the first chapter so yes safety is important we all agree but let's not get carried away right and uh yes it's important but uh uh does it really need to be the first thing in the book probably not so anyway andy thanks for sending those uh over and uh i will get these back to you uh post haste thank you all right this next one's kind of interesting so what we got here is a on the outside it says a 1930s grind on a 1940s chunk of high-speed steel so this comes to me from a friend of mine his name is kent he lives a couple hours from here and we correspond back and forth and share war stories uh he used to work at uh where i work now uh at lawrence berkeley lab many years ago anyway he uh he uh had this mcgraw-hill book and it was written by fred colvin and some another guy so colvin and stanley uh were kind of uh uh early uh writers of um you know textbooks and uh machinist handbooks and things like that so colvin and stanley c-o-c-o-l-v-i-n and stanley dispelled this how you think it would be uh they wrote quite a few books anyway he detailed how to grind a particular chunk of high speed and uh with a particular set of angles and whatnot and anyway kent ground went up and he sent one to me for for testing on camera and what's interesting is and this is the 1930s grind that's uh colvin and stanley and then the 1940s high-speed steel as you can see here usaf united states army air force and i think those that went out of um um so sometime around 1940 or something like that they became the air force the u.s air force right when one of you military folks out there would know that better but uh so before that it was the usaf right army air force and then it became the air force so anyway he sent me this this tool for for testing which we're going to test okay which i think is kind of kind of fun anyway he uh uh he had a second one of these and he had some 416 stainless that he was turning uh and he filled a couple of five gallon buckets full of chips with uh with this particular tool he says uh um this geometry doesn't like cuts so uh let's uh let's go over to the lathe and see what we can do with this thing uh this sounds like fun right okay so we got this thing set up we're on center we're all clamped up and nice um i had some steel a friend of mine john from ensenal machine he had some leftover chunks of uh uh 1144 that he uh hooked me up with and this is one of them so we're going to use that as uh as our test bed here um we're running about 120 feet per minute something like that so we'll get a touch off there and then um [Music] um let's do a hundred thousandths radially that's that doesn't seem like that much but let's try it so and we're uh ten thousands per rev feed which should be interesting let's see uh how it goes like cream cheese to me yeah all right let's stop that for a sec let's uh grab one of them chips and have a look at it so okay so that's that's uh pretty actually excellent the the chip is tan uh it's just slightly tan which is good a little bit of heat here uh the the chip is a little bit warm uh that's why i grabbed it with tweezers the chips are you know a nice uh nice color actually let's uh let's try a little more depth of cut there tool looks good it was uh it was curling the chip quite nicely all right um let's see what happens here this is 250 uh radial probably gonna smoke a bit with this let's try it you know what i'm just going to let it go into that shoulder let's see what happens oh even better yeah that's uh that's a nice tool i like that [Music] and then we got a little more color in the chips now [Music] got a little more color in the chips okay but it was it was marching right through that nice tool kent thank you and this is i don't know can you see that stuff down here it's short chipping it now so we get these nice little uh nice little curls and but keep in mind folks it's the idea is not to make perfect chips it's to make perfect parts all right there's some of the aftermath of that um so that was ten thousands per rev we probably could have gone uh uh higher than that even uh higher on the depth of cut but uh this illustrates you know metal removal even with the 1940s uh high-speed steel right tool's fine okay so yeah got some heat in it but the edge is still good and uh producing a nice curl and you know if we speed the speed the feed rate up a little more these probably tighten up a little bit and might even shorten uh break them up even more so uh kent thanks for sending that along that's a nice uh uh nice tool works good and uh we'll try it on some other stuff so you guys can kind of get a i mean and this is all pretty easy stuff to grind so uh that's why i'm still a fan of high speed uh steel um you can basically grind any geometry that you want and uh you know if you got a bench grinder and you don't have to find an insert or a holder and all that stuff right you know so it's still um quite viable for the the home shop machinist uh uh to understand how to create tool geometries uh um you know and not buy them okay anyway thanks ken that was fun all right this next one's kind of cool so what we have here is we have a an old jacobs chuck and this is pretty old and this comes to us from uh robert macker maker and um he asked me uh if i'd be willing to make a chuck key for this particular chuck and you know before you say well gee why don't you just buy one take a look at that it this is actually i've never seen one of these in the in the in the wild it's helical so the actual uh tooth pattern here in the chuck is uh it's helical so that means the chuck key needs to be helical right and uh which is a little a little a little tougher thing to do um so i poked around on the web a little bit and sure enough so if you're lucky enough to have one of these chucks uh you you probably don't have the key and if you have the key you probably don't have the chuck um there's only a couple people that have a chuck and a key and they're not willing to part with either one of them so you know it's uh it's a it's a standoff right you know nobody will sell anything right so uh um anyway um so he got interested in uh in trying to make one of these after seeing that uh the dog meat uh indexer you know the helical milling setup that i showed in one of my videos so check that video out it's a few videos back uh dog meat engineering helical milling um but actually a better a better technology to take care of this problem is metal printing so 3d metal printing so now what uh what i want to do here to help robert out is i want to model a chuck key and then have it 3d printed in you know in a durable uh tool steel material or uh or something you know hard and wear resistant um so you know once you have it modeled it's just it's pretty trivial to have one made and a small part like that is not particularly expensive to have 3d printed now all that said that's all fine and dandy um with this uh imminent heavy egress here this move of the shop that i have coming up i'm probably not going to get to this um before i'm before i'm moving so robert if you're watching this video i'm going to pop this chuck back in the mail to you and send it back just hang on to it and once i get settled in the new in the new shop uh we'll take another look at this and um and model up a key or whatever and get one printed or something and then once that model's out there all those people that have one of these chucks will pretty easily be able to get a key so anyway robert thanks for enlightening me and showing me a a helical jacobs chuck and he called jacobs and they said we never made anything like that and they said well it's got your name on it and they said well we don't know anything about it so that was the answer he got so i thought that was kind of funny so anyway robert thanks again in case you guys didn't already know it i'm fi i'm officially a pig now so uh um uh pig matt uh the industrial absorbent suppliers they contacted me and they are just super nice folks and um they said hey you want to do a collaboration uh no pressure and i went oh okay what did you have in mind they go well we're just gonna send you some stuff uh play around with it let us know what you think and that was it they left it at that i didn't have to do anything i just try out some of their products and um and uh anyway so they sent me a bunch of stuff to mess around with and these uh uh absorbent mats are one of them so uh now we just did that uh that uh that tool bit uh you know where we were cutting uh um you know some big heavy cuts in the lathe right well i don't know i had taken some of these absorbent mats and put them in the in the chip tray on the lathe right to absorb you know it's got the oil down there right to absorb some of the oil but when i finished with the the cutting i uh i went and looked at the uh at the mat and there and there's the uh the pig mat that came out of there and i just thought i just had a big laugh because what these these chips were so hot that they just they just melted and cut perfect holes through the uh through the pigment and uh you know it's fine it's no big deal right um but i decided it was funny that uh um they just cool themselves off right through the uh right through the pigment and uh anyway pretty neat um now i want to show you one of their other products that i haven't used yet but i'm excited to uh to try out so let's check that out so when i was talking to him on the phone or via email or whatever it was about their different products uh andy mentioned this particular stuff here and this is a a grippy mat um and um he calls a grippy absorbent mat right and what's neat about this and uh so i'm gonna tear it through the label there is it it has an adhesive a little adhesive on the back side which is pretty neat right um and then it's got some padding and some texture to it but instead of using this in the traditional sense when i was talking to andy about it um he uh i'm going to line uh tool boxes with this so i have some matting in one of my toolboxes this is awful it's atrocious and the the matting slides around on the drawer surface right so the the new plan is to use this stuff here cut it to size to fit in the in the drawers and then it'll it'll it's self-adhesive it'll stick down to the the drawer and it won't when the tools are on it it won't bunch up and uh like the other stuff's bunching up so they sent me two styles of this particular stuff so this is the uh absorbent uh variant of that and then the other one is it's a it's a little different and this is a floor mat so this goes on the floor so you can walk on it or whatever and then the other the other use and hey look at that they can actually do um custom printing if you send them some artwork how do you like that pretty cool huh and uh the idea here is to um put some on top of a uh a work surface right and use that as a as a work surface and and obliterate your logo or whatever so uh andy thanks for sending all the goodies i haven't really had a chance to play around with them like i said i'm getting ready to move and uh so a lot of these uh little little side projects are kind of on the back burner until we get into the new shop and stuff but i'm looking forward to trying some of these things out and thank you for sending a pile of goodies uh the ups guy uh hates your guts about 300 300 pounds worth of stuff so uh anyway thanks again for sending it and we'll uh we'll try this stuff i mean look at that that's pretty uh that's pretty gnarly that's pretty durable so yeah i'm looking forward to trying this all right you guys want to see something super cool check this out this is a once again this came from my friend jim's uh estate uh he was collector of weird instruments and uh and devices and this is a a gyro compass although i'm not sure how this particular one was used since it doesn't look like um it um you know when in any kind of an aircraft uh um console or anything like that but it's just okay this is like totally the ultimate fidget spinner here right you know i could watch this thing for for hours right and imagine myself as the black disc getting seasick in there right um anyway it was in this kind of weird housing or whatever so i'm not sure how this thing was used so maybe somebody out there says northwest industries limited so edmonton i don't know it's a canadian i'm not sure anyway it's pretty cool but what's more spectacular about this thing okay and this this is going to be a little bit hard to show here um it's just how freaking sensitive this thing is okay so let's uh let's let it settle out there for a sec and i got a i got a little magnet on the end of my on the end of my screwdriver here and you can see that even okay so that's that's just a itty-bitty little magnet okay now what's it just shows you how incredibly sensitive this is now i have a bigger magnet and i was playing around with this thing and i was about six feet away and i could still get a response out of this thing out of the and this it's just a magnet uh in fact i'll just show it to you here the thing's gonna go nuts right it was just this guy right here so uh six feet away this magnet here in this little holder um sends us i can get a reaction from this thing so uh anyway uh um that just shows you good instrument design you know i had the cover off of it it has these little um they're basically almost like watch pivots right they're a point in a in a little jeweled socket or something like that um that's a very very low surface area and very low contact um and um to give it this this kind of sensitivity anyway pretty fascinating huh you see this is so awesome man getting to play with fun stuff like this right you know i'm never going to use this to fly an airplane right but i can sure appreciate the work that went into designing and building something like this right isn't that isn't that cool you know the guys that get to get to make stuff like this kind of neat right anyway jim thanks for leaving this for me in your in your your estate and uh it's definitely in hands that would appreciate it and for those that want to know the uh the fasteners that go in these holes these are actually five number five machine screws 40 threads per inch right it took me a minute to figure it out who uses number fives apparently national uh national experimental or uh uh northwestern industries uses number five screws so anyway all right that's it guys [Music] [Music] you

Channel: oxtoolco

Views: 27,324

Rating: 4.9635892 out of 5

Keywords: Machine work, Toolmaking, Mechanical design, lathe toolbit, gyrocompass, instrument, grinding books, surface grinding, helical gear, hot wire cutter

Id: gI1n5XqEmRA

Length: 38min 32sec (2312 seconds)

Published: Mon Sep 27 2021

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Tom Lipton is a legend.