4:59 bliss seeing that slide 5:02 immediate worrying about the cerastone falling Thanks for the videos, really helping me understand more about the equipment from my workplace.
Metrology is just SO important. It is absolutely foundational to so much of science. If you don't have accuracy, if you can't get repeatability, you don't even get to *have* science. You have guesswork. At best, you have guesswork.
Utter and completely fascinating!. I also, am not involved in precise measurement in anything but have come to understand that a truly, truly FLAT PLATE is the origin of all modern precision manufacturing. A video on the history and development of the surface plate would be wonderful, including mention of Whitworth, etc.
Nice video. I was looking for a video on aerie and bessel points but found this instead. Sadly there doesn't seem to be many videos covering anything above the basics of metrology.
I'm looking to get one for my wood shop, just a B grade would be fine for me. Just to true up the bottom of a hand plane or to use as a sanding surface before joining pieces of wood... awesome to watch that stone slide across. BTW I do own a Mitutoyo caliper and plan to buy another. Only brand I'll buy. Incredible tools, I love mine.
While there's a few YT videos around about lapping worn surface plates and then recalibrating them for a certified grade and flatness level there's no such thing as too much information. I'd certainly be interested in how a company of Mitutoyo's stature would go about it.
Is it critical for a granite surface plate to be leveled by a three point suspension, similar to those used for cast iron surface plates? Could you elaborate on what would be considered properly setting up a granite surface plate?
+ Wayne P NO! The purpose of the three point suspension is NOT to level the plate (cast iron or granite). It has to do with equalizing the supported weight of the plate within a plane (determined by 3 points). NO plate needs to be "level" beyond preventing (non cylindrical) items rolling, sliding/moving due to gravity. A plate provides a flat plane from which perpendicular measurements are taken.
The best practice is three point suspension at the same locations used during calibration. The supplier should mark these points on the underside of the surface plate. Surface plates are not infinitely thick and rigid, so proper suspension will minimize deflections due to its own weight.
Good vid I would add the standards as to how the plates are measured for instance and the methods. Union Jack method used for overall flatness using a laser and a repeatometer for local flatness. Great vid though.
The cerastone did not fall off the plate. In the remaining video footage from that scene, the cerastone stopped just at the edge of the plate, but we did have someone just off-camera to catch it, just in case.
We used to keep a 1/4" or so sheet of rubber cut off the shop roll and whomever it was i can't remember came every so often for that bigger one while various other smaller standards were sent off to be remastered or more like testing before being reintroduced or whatever. I think remastering is more like calibrating some mechanized shop standard that checked and calibrated, zeroing, setting etc.. We had more test and inspection equipment than anyone anywhere I've ever seen unless they were machining the same type of stuff, i watch all these guys and they got dial calipers, and OD mics, depth mics, Tri mics, sliding depth mics, etc. Man that's basic BASIC equipment.... u know we had gauges that checked taper and diam. simultaneously and if u had finally grasped it with repeatedly being set right u definitely were set a part. There's so much shit out there. To me a machinist isn't running a machine, i was quality for nearly 2 decades before i ever touched a machine and when i did i didn't need anyone.....i never ran cnc though but, i was around that and only that while in quality and to me it seemed easier in the aspect of operating the problems were trying to produce too much too quickly and trying to achieve some quality objective that requires yhe patience of a blind cotton crippled dehydrated snail, or a two legged turtle....lol...NS.... fmfks man.... u understand how much money them people owe me by now? Billions man BILLIONS!! mf!
No, the surface plate won't wring to anything. Wringing requires both flatness and highly polished surface finish. But this is good news, because wringing would make using surface plates very challenging.
BTW, for those interested, there are only 3 basic references that define all the rest. Flat plane (surface reference), right angle (master square), and circles (center and radius of a ideal circle). These three can be combined to lock down all 6 degrees of freedom, leaving you a known feature map. Every other geometry can be obtained using these three references. They're like the 3 simple tools.
The pyramids are marvels of ancient engineering and we would still have difficulty in recreating them today. I'm sure it could be done but their accuracy and precision are astonishing.
![ROSÉ(로제) - APT. (Band VER.) (With. 이영지) [더 시즌즈-이영지의 레인보우] | KBS 241129 방송](http://i.ytimg.com/vi/IW8qaemx74g/mqdefault.jpg)
4:59 bliss seeing that slide
5:02 immediate worrying about the cerastone falling
Thanks for the videos, really helping me understand more about the equipment from my workplace.
Not very many videos on YT about calibration - def make one.
Metrology is just SO important. It is absolutely foundational to so much of science. If you don't have accuracy, if you can't get repeatability, you don't even get to *have* science.
You have guesswork. At best, you have guesswork.
90 percent of academia doesn’t care about that. They buy an instrument and then ignore it.
Fine video and makes a boring (but admittedly important) subject actually very interesting.
We are happy that you found our video very interesting!
Not in this industry at all. I just like this guy's approach. Also that one thing floating across the other thing was amazing.
Utter and completely fascinating!. I also, am not involved in precise measurement in anything but have come to understand that a truly, truly FLAT PLATE is the origin of all modern precision manufacturing. A video on the history and development of the surface plate would be wonderful, including mention of Whitworth, etc.
Definitely want to see the calibration!
4:59 I experienced euphoria.
Nice!
Love these videos. Would like to see more videos like these
We are glad to hear that you like these videos.
Nice video. I was looking for a video on aerie and bessel points but found this instead. Sadly there doesn't seem to be many videos covering anything above the basics of metrology.
Good video. How we can calibrate the surface plate ,any mitutoyo special equipment is available for that . Expecting more information on the same .
When's the next surface plate video?
I'm looking to get one for my wood shop, just a B grade would be fine for me. Just to true up the bottom of a hand plane or to use as a sanding surface before joining pieces of wood... awesome to watch that stone slide across. BTW I do own a Mitutoyo caliper and plan to buy another. Only brand I'll buy. Incredible tools, I love mine.
We always appreciate hearing how much our customers love our products.
Great vid and would love to see a video on the different way to calibrate a granite surface. What makes denatured alcohol your choice of cleaner?
Cheap, available, non-corrosive, low toxicity, volatile (residue evaporates quickly). Acetone should work just as well.
I have nothing to do with metrology.... I'm just really treading the backwaters of the internet, finding its odd corners.
Denatured alcohol! Glad to know Mitutoyo uses something off the shelf.
While there's a few YT videos around about lapping worn surface plates and then recalibrating them for a certified grade and flatness level there's no such thing as too much information. I'd certainly be interested in how a company of Mitutoyo's stature would go about it.
They won’t say anything
Machinist vs QC the battle that will never end
The battle is that machinists are quitters. QC is lazy.
Are you lazy or a quitter?
We like to see and learn the calibration of surface plate
it's refreshing to be reminded that accuracy still exists.
We are happy to help.
Is it critical for a granite surface plate to be leveled by a three point suspension, similar to those used for cast iron surface plates? Could you elaborate on what would be considered properly setting up a granite surface plate?
+
Wayne P
NO!
The purpose of the three point suspension is NOT to level the plate (cast iron or granite). It has to do with equalizing the supported weight of the plate within a plane (determined by 3 points).
NO plate needs to be "level" beyond preventing (non cylindrical) items rolling, sliding/moving due to gravity.
A plate provides a flat plane from which perpendicular measurements are taken.
The best practice is three point suspension at the same locations used during calibration. The supplier should mark these points on the underside of the surface plate. Surface plates are not infinitely thick and rigid, so proper suspension will minimize deflections due to its own weight.
Check out Dale's video "How to set up a surface plate" ruclips.net/video/YZgpdMtN-AM/видео.html
Thank you m8 good information.
Good vid I would add the standards as to how the plates are measured for instance and the methods. Union Jack method used for overall flatness using a laser and a repeatometer for local flatness. Great vid though.
Great video..what about cleaning the surface with IPA?
Denatured alcohol is what we use to clean our granite surface plates
I need that AA grade plate haha. the plate I ground and lapped myself is grade C+
Please tell me the cerastone didn't fall off the plate 😱😱😱5:00
The cerastone did not fall off the plate. In the remaining video footage from that scene, the cerastone stopped just at the edge of the plate, but we did have someone just off-camera to catch it, just in case.
Outside 'merica : ISO 8512-2 wonder how different these can be ?
Good stuff. Starting with the basics is excellent. Nothing assumed! I would love to see a vid on how an auto columiator works.
4:59 amazing.
Is this surface plate flatter than the earth?
Yes
We used to keep a 1/4" or so sheet of rubber cut off the shop roll and whomever it was i can't remember came every so often for that bigger one while various other smaller standards were sent off to be remastered or more like testing before being reintroduced or whatever. I think remastering is more like calibrating some mechanized shop standard that checked and calibrated, zeroing, setting etc.. We had more test and inspection equipment than anyone anywhere I've ever seen unless they were machining the same type of stuff, i watch all these guys and they got dial calipers, and OD mics, depth mics, Tri mics, sliding depth mics, etc. Man that's basic BASIC equipment.... u know we had gauges that checked taper and diam. simultaneously and if u had finally grasped it with repeatedly being set right u definitely were set a part. There's so much shit out there. To me a machinist isn't running a machine, i was quality for nearly 2 decades before i ever touched a machine and when i did i didn't need anyone.....i never ran cnc though but, i was around that and only that while in quality and to me it seemed easier in the aspect of operating the problems were trying to produce too much too quickly and trying to achieve some quality objective that requires yhe patience of a blind cotton crippled dehydrated snail, or a two legged turtle....lol...NS.... fmfks man.... u understand how much money them people owe me by now? Billions man BILLIONS!! mf!
Yes
You write like a dunce.
But I agree that the intersection of thinking and doing is very lucrative and almost always deranged.
what about the machine tools ?
Will the gauge block wring to the surface plate?
No, the surface plate won't wring to anything. Wringing requires both flatness and highly polished surface finish. But this is good news, because wringing would make using surface plates very challenging.
Use one several times daily. Both A and AA. (AA is inside the Metrology lab) I are an tool and die and metrology nerd.
BTW, for those interested, there are only 3 basic references that define all the rest. Flat plane (surface reference), right angle (master square), and circles (center and radius of a ideal circle). These three can be combined to lock down all 6 degrees of freedom, leaving you a known feature map. Every other geometry can be obtained using these three references. They're like the 3 simple tools.
"it's a rock" - Jim Salisbury
Just remember this video when they try and tell you the ancient Egyptions did it better than anything we can do now...
The pyramids are marvels of ancient engineering and we would still have difficulty in recreating them today. I'm sure it could be done but their accuracy and precision are astonishing.
@@OuijaSTi not the point of the original reply. People talk about it like it was impossible magic, or science fiction. It's not.
Mitsutoyo
я такую в гараже ровней сделаю !!!
I'll make this one even in the garage !!!
His plate is so flat that remembers me or Rick and Morty.
😃
Metrics please.. a vast majority of the world are using metric