Surface Plate Calibration and Conditioning

In this video we see the process for inspection and reconditioning granite surface plates. The plates are inspected and calibrated with an Autocollimator and a special instrument called a repeat meter sensitive to millionths of an inch. The plates can be resurfaced in the field using diamond charged cast iron laps. For more information or to get your plates calibrated check out the links below.
www.standridgegranite.com/
www.precisiongraniteusa.com/

Пікірлер: 677

  • @MattsMotorz
    @MattsMotorz8 жыл бұрын

    I like that guy, you can tell he loves his job, which is something I always like in people.

  • @checkpoint3260

    @checkpoint3260

    5 жыл бұрын

    Ya... but I think that guy who empties the port-o-lets likes his job a bit too much for my liking.

  • @shaunsurname8275

    @shaunsurname8275

    4 жыл бұрын

    What if your job is the guy who injects baby bunny rabbits with poison? Would you like that guy if he whistled through his shift with a smile ? ?

  • @noeraldinkabam

    @noeraldinkabam

    4 жыл бұрын

    I’m a hitman, I love my job. You love me too?

  • @illustriouschin

    @illustriouschin

    4 жыл бұрын

    The dude has skinny arms. The Mexican guy does all the work and the skinny guy takes all the credit.

  • @seekyunbounded9273

    @seekyunbounded9273

    4 жыл бұрын

    @@noeraldinkabam would you be willing to take apprentices?

  • @66dunoon69
    @66dunoon69 Жыл бұрын

    In the mid-60's I was on a Polaris Submarine repair ship and I worked in the Fleet Mechanical Calibration Lab. We had 2 black granite surface plates a 4'X8' and a 2'X4', we calibrated our own using a procedure from Metrology Engineering Center in Pomona, Calif. we measured every inch and plotted it using a Davidson D638 autocollimator and a precision front surface mirror. It would take as about 2 days to shoot the big plate and about a half day to shoot the small plate. Then we would enter all these measurements into a Frieden mechanical calculator and it would set and crank out for about 8hrs to give us our high and low spots as I remember it was a AAA plate but we used it for everything from a bed to ironing our uniforms on. It was mainly used to calibrate all the optical equipment we serviced, when I went back in the Navy in the early 70's nearly all the optical stuff had been replaced by electronic equipment. I really loved working on and calibration optical instruments. Those days are long gone.

  • @StanErvin-yo9vl

    @StanErvin-yo9vl

    9 ай бұрын

    Tres Å? Wow. Bueno.

  • @spookypen
    @spookypen3 жыл бұрын

    You watch one video on surface plates... and now the algorithm's got you.

  • @un7ucky

    @un7ucky

    Ай бұрын

    still true as of today. done the wormhole i go

  • @billdlv
    @billdlv8 жыл бұрын

    I was surprised at the simple equipment too. You can tell those guys have a solid understanding of the concepts, and are not just following steps.

  • @aserta

    @aserta

    8 жыл бұрын

    +Bill De La Vega It's actually a very simple thing to do. I mean, people make telescope lenses/mirrors at home with similar (yet applied to the world of glass) methods and devices. I can totally see something like this done by someone with the tools and patience required. I remember reading about a guy who made a 60 cm mirror and had it checked and he was within PRO levels of accuracy. But yeah, those two are very adept at what they are doing, also, well oiled teamwork.

  • @straxgasser2943

    @straxgasser2943

    8 жыл бұрын

    +aserta Yeah, I have also been fascinated by telescope mirror making. Technically grinding and polishing a telescope mirror looks quite alike and simple. However the accuracy of the parabolic mirror has to be within 1/8 of the wavelength of visible light, about 2,7 millions of an inch. While polishing looks simple, getting it right is actually hard to do. Even the experienced amateur mirror makers often have to take several attempts. It is not like dusting the high spots down using a surface grinder. The motion of the lap is the key. The pattern the lap is moved by, whether in strokes, ovals, swirls and with which overlap: all influences how and where material removed.

  • @1pcfred

    @1pcfred

    8 жыл бұрын

    +Strax Gasser Yeah people hand lap telescope mirrors to within millionths of an inch of parabola.

  • @yotube123454321

    @yotube123454321

    7 жыл бұрын

    And thus begins my descent into the youtube black hole of telescope mirror lapping haha

  • @1pcfred

    @1pcfred

    7 жыл бұрын

    Giuliano's Things I've been there. It's nice.

  • @joseluissoto6064
    @joseluissoto60646 жыл бұрын

    The kindness of the field techs walking us through the process... thumbs up! Thanks Ox!

  • @FredMiller
    @FredMiller8 жыл бұрын

    Wow what a treat! How many of us would ever have seen this on our own. Thanks for sharing Tom!

  • @RyanWeishalla
    @RyanWeishalla8 жыл бұрын

    Interesting work. It was nice that the guy was into talking about what he was doing and let you video it for us. That story about the lady who only wanted the B certification was hilarious.

  • @wupme

    @wupme

    8 жыл бұрын

    +ILGopher yes it was. But you run across those people everywhere in every field. We once had a customer complain to us that the picture on her new computer looked to good...

  • @KnolltopFarms

    @KnolltopFarms

    8 жыл бұрын

    +ILGopher Good kid, excellent customer service skills combined with great technical aptitude=fine employee. It was nice to see he is passionate about his job also, which I thought was shown by his comment about being grateful for Tom's interest and participation in the process. Great video and I hope everyone is doing well, Aloha...Chuck

  • @johnjohn-ed9qt

    @johnjohn-ed9qt

    8 жыл бұрын

    +ILGopher I understand the desire for B certification. It's like buying a car and worrying about the first scratch. I usually just give the bumper a little ding myself so I stop worrying.

  • @5955trey5955

    @5955trey5955

    8 жыл бұрын

    +Knolltop Farms Agreed. His commentary was excellent. It made all the difference in understanding what we were watching.

  • @djberg3483

    @djberg3483

    7 жыл бұрын

    very cool to see, and yeah that was far less involved than i would imagine.

  • @danarrington2224
    @danarrington22244 жыл бұрын

    25+ years in manufacturing and I have never seen this done. Thank you so much for posting this video. It's not at all what I had imagined. Great stuff!!

  • @Ujeb08
    @Ujeb088 жыл бұрын

    Tom, thanks for sharing this with us! The process of flattening granite surface plates isn't seen often by machinists. I saw the tail end of a calibration about 30 years ago but that's all. Funny story - when I first began working in the engineering department where I'm working now (25 years ago) I found under a huge pile of junk, a pink granite surface plate , a monster size 6 foot by 10 foot. After I cleared it off and tried cleaning it, I found globs of hardened epoxy all over it's surface! It turns out that a bunch of students were using it to make composite panels on it! That stone must have cost 10's of thousands of dollars and was used as a table! We have since gotten rid of it and I replaced it with a 4 x 4 foot pink stone that I use to set up fixturing for my new wire EDM.

  • 5 жыл бұрын

    AAH!!! the money that schools spend is indeed staggering, the mistreatment of what is purchased is even more staggering!!

  • @TheChipmunk2008
    @TheChipmunk20088 жыл бұрын

    Great to see folks who are enthusiastic about their work, happy to be filmed, and happy to explain for everyone even though they probably weren't expecting it. It says great things about the company and the professionalism. Big thumbs up to Precision Granite for this (and you of course Tom!)

  • @russhellmy
    @russhellmy8 жыл бұрын

    "your granites are actually improving my laps" OK then let's just do a contra, you don't bill me, I won't bill you. hahaha

  • @cranelord
    @cranelord4 жыл бұрын

    Yet another job I can add to the list of "careers I had no idea existed".

  • @actually5004

    @actually5004

    4 жыл бұрын

    You can't tell me you've never heard of Rick Sanchez...

  • @Jutilaje

    @Jutilaje

    3 жыл бұрын

    @Robert Slackware that's what he was showing with them "charging" the plate with diamond. They put either a very thin coating of wet diamond lapping paste, or dry diamond lapping powder on the roller, and then roll it into the plate. Because the diamond is obviously harder than the cast iron plate, much of it embeds into the cast iron.

  • @RookieLock
    @RookieLock4 жыл бұрын

    Man, I've watched this like 3 times over the last few years, and it's still as entertaining as the first time I saw it. You can really tell these guys love what they do. Love how they took time to educate you and us. Thanks again Tom!

  • @ChunkyMonkaayyy
    @ChunkyMonkaayyy7 жыл бұрын

    "Under promise, over deliver." Really cool video!!

  • @oxtoolco

    @oxtoolco

    7 жыл бұрын

    Hey Hugh, Hard to complain about that right. Thanks for the comment. Cheers, Tom

  • @Kruglord
    @Kruglord4 жыл бұрын

    Man, I'm a geomatics engineer (formerly know as a survey engineer) and these guys are talking about 1/4 second precision and all that, that's incredible! You've got to have some pretty fancy equipment to reach that precision, I'm gaining some new appreciation for the measurement precision needed in machining.

  • @jp2kk2
    @jp2kk25 жыл бұрын

    I'm coming into contact with precision plates for the first time and this is completely blowing my mind! I love how so many precise things come from such a simple tool... a surface!

  • @jeffmoss26
    @jeffmoss268 жыл бұрын

    Very cool Tom! I remember seeing the surface plates and inspection tables being calibrated when I worked at Nook Industries.

  • @crusader777
    @crusader7775 жыл бұрын

    Wish I had 50 millionths of this dude's energy

  • @ProtoSimTechnologies
    @ProtoSimTechnologies8 жыл бұрын

    Absolutely fascinating! I loved every second of that. Listening to that guy talk, you can tell he really loves his job. Awesome stuff, Tom.

  • @mrgreenswelding2853
    @mrgreenswelding28538 жыл бұрын

    awesome tom. its just amazing the simplicity of the tools to do that job. the guy knows his stuff and that is just as awesome!!!

  • @yoonki
    @yoonki8 жыл бұрын

    I started watching your videos for the machining, but you've made me really love the theory and practice behind inspection and metrology. Thanks Tom!

  • @Alistair_Spence
    @Alistair_Spence8 жыл бұрын

    Particularly enjoyed this video Tom. These guys obviously know their stuff. It's always good to see professionals doing their thing. Thanks.

  • @Pappaoh
    @Pappaoh5 жыл бұрын

    Really enjoy this vid Tom. It was a real eye opener for me. This is my second time through seeing it. I met Mike and John at the tour put on by Stan this summer and they were wonderful guys, so generous w their knowledge and their time. Keep up the great vids.

  • @craignicholson505
    @craignicholson5058 жыл бұрын

    truly amazing to watch thanks tom and the guys who sorted your grant

  • @hotdrippyglass
    @hotdrippyglass8 жыл бұрын

    Very cool Tom. Understanding the details really reveals the magic of the simplicity of thinking the methods through. Almost too simple.

  • @kylebowker5389
    @kylebowker53894 жыл бұрын

    Love this kind of stuff! Machining and metrology go hand in hand. Big respect to all the smart people solving problems in machine shops.

  • @RjBin-xz2um
    @RjBin-xz2um8 жыл бұрын

    Excellent video Tom! Never seen how this was done and am glad I could see it. The whole process seems so simple but that's what professionals do.....make it look easy.

  • @southjerseysound7340
    @southjerseysound73407 жыл бұрын

    Great video and thanks for sharing and same goes for the crew letting you film/ask questions etc. I'm pretty sure that there's another video floating around with this guy in it at their shop.It's been a while but I recall him pulling out the old 40's era gear to double check the laser they use.Seems like they've worked a lot together and make a nice crew too.

  • @danielwerger5641
    @danielwerger56418 жыл бұрын

    Tom, you blew my mind with this one. Never have I seen this process, and its amazing how (relatively - given that young guys expertise) simple it was.... I'm still digesting this video. Absolutely useful.... Thanks a million, Daniel.

  • @AmateurRedneckWorkshop
    @AmateurRedneckWorkshop8 жыл бұрын

    Great video. I had no idea how they checked or finished a surface plate.

  • @craigs5212
    @craigs52128 жыл бұрын

    Tom, that was a great video. I had the same impression you did before seeing it done in the video. Figured they would work on small areas, measure and repeat until they had it flat, similar to scraping ways. So there's three items for the tool acquisition list.

  • @jacmarhal
    @jacmarhal8 жыл бұрын

    Simply fascinating that you do not see very often. I learned something new today thanks to you, Tom. Much appreciated.

  • @SeaLapCovina
    @SeaLapCovina2 жыл бұрын

    I always look forward to Standridge coming out. I run a flat lapping company and when they are here I get to really geek out about flatness!

  • @MartsGarage
    @MartsGarage8 жыл бұрын

    Thanks Tom, that was very interesting. Nice to hear the one tool was from the forties and made in England. Mart.

  • @williamhardin5254
    @williamhardin52548 жыл бұрын

    Great video. That's the first time I have seen that done to a surface plate and I really enjoyed the video. Thanks for sharing with us.

  • @marksinden4156
    @marksinden41568 жыл бұрын

    Fascinating to watch. Thanks you for uploading this (and the inspection company for letting you film it)

  • @garyc5483
    @garyc54838 жыл бұрын

    Excellent Tom. As said this is something that not a lot of home machinists would ever see. regards from the UK.

  • @duobob
    @duobob8 жыл бұрын

    Gread video, Tom! Thanks for recording and sharing this.

  • @ckvasnic1
    @ckvasnic18 жыл бұрын

    Extremely cool! Thank you for sharing that! I'm gonna have to get mine looked at!

  • @RileyKnifeandTool
    @RileyKnifeandTool8 жыл бұрын

    This is why I love this channel... where else are you gonna see something like this? The problem is that now I want my own lapping set up! Very cool stuff.

  • @DochNiemals
    @DochNiemals8 жыл бұрын

    Absolutely fascinating and informative video! It addressed little things I've wondered about for years. Thank you, Master Ox!

  • @leightondawson9247
    @leightondawson9247 Жыл бұрын

    I keep coming back to this. Foundational for precision and super interesting. Thanks for sharing!

  • @michor10
    @michor106 жыл бұрын

    This was super fun to watch. It's always cool to see a professional explain the process too.

  • @seanmcmunn88
    @seanmcmunn888 жыл бұрын

    Killer stuff, I work for Newport Corp and we deal a lot with high precision flats, always fun to see them calibrated.

  • @joer9638
    @joer96387 жыл бұрын

    It's nice to see such a young guy getting into this kind of old-school technical work. Hopefully they'll be able to keep the skills alive!

  • @LemeeKnives
    @LemeeKnives8 жыл бұрын

    Thanks for showing us that process Tom, very interesting.

  • @angelarichards1911
    @angelarichards19114 жыл бұрын

    Love to see that Myford behind you . They were made about 4 miles from my home in Nottingham. Long gone now I'm afraid.

  • @GregsGarage
    @GregsGarage4 жыл бұрын

    Just watched all your lapping vids plus this one... FASCINATING!!! Thank you for capturing this.

  • @SLRist
    @SLRist8 жыл бұрын

    Really fascinating stuff. It's wonderful to see real specialist people working like this.

  • @godztempus
    @godztempus8 жыл бұрын

    wow, that was so much simpler than I thought it would be. Thanks for sharing. I really enjoyed that.

  • @roberta6641
    @roberta66414 жыл бұрын

    i recently took an interest in reconditioning and collecting tools. even ones i wont ever actually use. understanding how they work is so fascinating in the respects that the thinking and evolution that have gone into making them tools blows my mind. recently i brought a double sided diamond lap from faithfull tools and when i started using it for sharping wood chisels and plain irons i quickly realized that a flat surface is imperative for a keen edge. ive even used the lap to flatten my polishing stones and used them on the plane irons. so far the shaveings have come off the wood at 3 thou or less. never underestimate the value of a good flat serface.

  • @BKD70
    @BKD708 жыл бұрын

    Tom, Awesome video! I've always been mystified about how such a precision piece of equipment could be so relatively inexpensive to purchase. Now it all makes sense!

  • @AtelierDBurgoyne
    @AtelierDBurgoyne8 жыл бұрын

    Hi Tom! For me, this qualifies as the top most informative video of the year! My wife and I both found it fascinating. The tech guy was speaking so fast, I had to rewind and listen more closely. Many thanks for sharing this info which I had never seen or read about anywhere else. Daniel

  • @Endmass
    @Endmass8 жыл бұрын

    I've seen this done once, a few years back. I do recall seeing a repeat-o-meter used, but instead of lasers or an autocollimator, they used some other device. I recall it squeaking against the palate. I was too busy working to get what was going on, unfortunately. Cool process, same realm as hand scrapping. Very neat video!

  • @richardshephard5335
    @richardshephard53358 жыл бұрын

    i'd love to see your shop tom, I used to work at myfords, noticed the grinder in the background..i have to make do with an old cast iron plate ..interesting to watch the boys that know how thanks

  • @LiLi-or2gm
    @LiLi-or2gm5 жыл бұрын

    Wow, I learned so much from watching this! And the tech is so assured- his manner is as precise as his work. Manny didn't say much but I bet he's nearly as well-versed.

  • @cindyharrison4191
    @cindyharrison4191 Жыл бұрын

    I ran a calibration lab in the UK 🇬🇧. And now 3 of my 4 children work in the same field. It brought back some memories of working on site.

  • @clemwyo
    @clemwyo8 жыл бұрын

    Tom, very interesting, thanks for sharing it with us. Craig

  • @ronrinock6943
    @ronrinock69438 жыл бұрын

    I have read about the process of reconditioning plates but there's nothing like seeing it actually done. Thanks for the video!

  • @stxrynn
    @stxrynn8 жыл бұрын

    I got an 2x3 plate last summer. At some point, I'll be doing this too. Thanks for giving us a blow by blow. That was very cool.

  • @michaelm1861
    @michaelm18616 жыл бұрын

    Wow...I did not expect to enjoy that video as much as I did. Thanks for posting it. It was very entertaining. And yes, it was very cool to see them achieve such precision with such simple tools.

  • @chrisshipman6253
    @chrisshipman62533 жыл бұрын

    I haven't seen this done optically before. The companies I've used have always used precision electronic levels. I liked the comment about the work improving the lapping equipment. I've been told that some manufacturers make surface plates / tables in pairs, using each to simultaneously lap the other.

  • @charlesmiller5078
    @charlesmiller50788 жыл бұрын

    Used to work around a place that made Blade Rotor parts for the Black Hawk, they used a 8 ft by 10 ft inspection table, with a computer controlled touch system on a arm, used to sit and watch that machine do its thing. Truly amazing work.

  • @johncarruthers5020
    @johncarruthers50208 жыл бұрын

    Absolutely fascinating. A recently deceased neighbour was a metrologist before he retired, you should see his kit. As an ex glazier and amateur optician I love to see this kind of absolute accuracy. I have a couple of Hilger & Watts diffraction gratings and a clinometer, fine tools.

  • @JohnBare747
    @JohnBare7478 жыл бұрын

    Cool video Tom, glad you need to get flat so we could see this process in action, quite interesting and the low tech in itself was a surprise.

  • @jonahbrame7874
    @jonahbrame78747 жыл бұрын

    This was so cool to see. Thank you for filming this.

  • @yosmith1
    @yosmith18 жыл бұрын

    Two thumbs up, Tom! That was very fascinating! Thanks for sharing

  • @ryangobie
    @ryangobie8 жыл бұрын

    Great video. It compliments Stan's tour nicely. Interesting talk about how finishing your tool corrects their equipment. I think I have some reading to do. And here's hoping I can convince my employer to get me a small block for some paper lapping.

  • @Wizradical
    @Wizradical5 жыл бұрын

    That's a bunch of granite that is super smooth and super flat. Amazing to see such unique things.

  • @02stanggt
    @02stanggt8 жыл бұрын

    Fantastic stuff, Tom. Very interesting process and some really good results.

  • @denniss5512
    @denniss55127 жыл бұрын

    This was a nice video. Great to see a young person who takes such pride in his work. Very knowledgeable technician.

  • @razorworks9942
    @razorworks99427 жыл бұрын

    Nice to see how this was done. Randy and I took our plates over to Bob Korves over in Sac, and had ours done. Maybe by these same guy's. We were to meet at a certain time, and they got there early and were finished by the time we were to meet them. So yes they were fast. Kinda bummed that I missed the process. Thanks for making the video Tom! Razor!

  • @1OlBull
    @1OlBull8 жыл бұрын

    Nice to know how this is done. I too, expected some elaborate process. It's all in the knowing. Thanks for sharing.

  • @Garageworkshop
    @Garageworkshop8 жыл бұрын

    That is amazing. Thanks a lot for sharing this and what surprised me the most is the fact that the laps they use are smaller than the actual surface plate, I always thought that in order to lap something correctly you need to have a bigger lap than your part.

  • @Okie-Tom
    @Okie-Tom5 жыл бұрын

    Very neat video. I love to see people that love doing what they do and are so good at it!

  • @clemwyo
    @clemwyo8 жыл бұрын

    Tom, that was very interesting, thanks for sharing it with us. Craig

  • @tinkermouse-scottrussell3738
    @tinkermouse-scottrussell37388 жыл бұрын

    I now know what to look for when mine are reconditioned, good timing and thanks for sharing.

  • @jtkilroy
    @jtkilroy8 жыл бұрын

    Great demonstration of the process, thanks for making that video.

  • @leonardbudgell5007
    @leonardbudgell50074 жыл бұрын

    Hello Andy. My name is Len. Been watching your videos for the last few months. Just want to tell you that where you are is beatable. I know because I have been there for both treatments and today have a quality of life second to none. Your will be back in the tractor for planting.

  • @ghl3488
    @ghl34883 жыл бұрын

    really interesting video thanks Tom. I thought it would a lot more high tech to achieve improvements. The two guys were very accommodating and a credit to the company. Very knowledgeable and willing to share that knowledge. Thanks very much.

  • @WTF0v3r
    @WTF0v3r8 жыл бұрын

    What a cool process to watch. Thanks for making the video.

  • @petew5272
    @petew52728 жыл бұрын

    A rock-solid video that did much more than skim the surface of a monumental subject!! As usual, I watched and learnt.

  • @stroys7061
    @stroys7061 Жыл бұрын

    Very impressive craftsmanship. I’ll watch this a few more times.

  • @CliffsShed
    @CliffsShed4 жыл бұрын

    that was time well spent, thanks to everyone for this video!

  • @dihskursiv
    @dihskursiv8 жыл бұрын

    That was great to watch...thanks for video taping and posting.

  • @cvmikeray2
    @cvmikeray28 жыл бұрын

    Learned a lot on this one. Great point to cover. Thanks Tom!!

  • @886014
    @8860148 жыл бұрын

    Hey Tom, I have the same model autocollimator (with the same light mod ha ha), they're not as expensive as you might think, and a bit of shopping around can get one for what I think is a good price. The guy is quite right about the 90 degree eyepiece however; impossible to find! It was interesting to see them split the plate, as they split the lines in half instead of using a second mirror. The Rahn repeat-o-meters are typically expensive and now you see how they're made, somewhat pointless for many applications. It wouldn't take a rocket scientist to make one up, as he said, they're just a height gauge with an oversized gauge block. Thanks for sharing that, very cool to see some pros at work, and it sounds as if the price is right up there.

  • @RGSABloke
    @RGSABloke8 жыл бұрын

    Hi Tom, what a treat, and as my physics teacher said 'Keep it short and simple', nothing works in this world that is not related to physics!!!! Really enjoy your videos (including the physics stuff) regards. Joe

  • @stonecraft745
    @stonecraft7454 жыл бұрын

    Thanks for sharing! Opened up my mind.

  • @drevil4454
    @drevil4454 Жыл бұрын

    Blimey!!! We need more of these sanding guys in South Africa. Guy is enthusiatic.

  • @artemiasalina1860
    @artemiasalina18608 жыл бұрын

    Fascinating episode, Tom. I started out in hobby machining because of my interest in making my own telescopes, and the mirrors had to be ground and figured to within 0.25 of a wavelength of light (~125 nanometers). I built my own Foucault knife edge tester (wikipedia has a good article on them) and used it to test my mirrors. I've always gotten jazzed about super precision stuff! Thanks for posting this, it was great!

  • @olivaldocosta6186

    @olivaldocosta6186

    5 жыл бұрын

    Muito bom, Brasil.

  • @PhnxCaller
    @PhnxCaller8 жыл бұрын

    Great video! I'm a metrologist for the DOD...good memories of using the auto-collimator /w mirrors to cal rocks. We now use electronic leveling heads...not as glamorous as the optical way. Very, very cool vid. We have that same H/W collimator on the shelf...it's a beaut.

  • @oxtoolco

    @oxtoolco

    8 жыл бұрын

    +Michael Dodge Hi Michael, I am fond of Hilger Watts equipment. I have a level that has a bakelite case lined with leather. Every time I open it up it smells like instruments and precision. Thanks for the comment. Cheers, Tom

  • @imdeplorable2241
    @imdeplorable22413 жыл бұрын

    I'm with you --- I found this fascinating. I have no use for this knowledge but, I love learning so, I watched this from end to end. Thank you for making this video.

  • @charlescompton4495
    @charlescompton44957 жыл бұрын

    Great video and thanks for the info, Greg.

  • @robertfontaine3650
    @robertfontaine36509 ай бұрын

    Ancient video but awesome. Having surface plates so accurate gives you the ability to do precision machining that is hard for me to imagine as a hobbyiest

  • @DavidMilum
    @DavidMilum8 жыл бұрын

    Very interesting. Pay attention and you can learn something new everyday my old Dad used to say. Thank you Tom.

  • @MichaelLloyd
    @MichaelLloyd5 жыл бұрын

    Wow, that was impressive. I'm surprised at how simple it was. I didn't expect that at all.

  • @Chris119.
    @Chris119. Жыл бұрын

    ahh that sound of the lapping iron working over the granite is so satisfying...

  • @Waffenschmiedinx
    @Waffenschmiedinx8 жыл бұрын

    thank you for sharing this I always wanted to know how that was done. very interesting

  • @BTimmer
    @BTimmer8 жыл бұрын

    I echo the other sentiments. A great video on the simplicity of accuracy.