Very accurate measurements with bubble level

[@stillness0072]

This guy is precise enough to be dangerous

[@gena_bazarko]

I can’t understand for sure whether this review is positive or negative, but thanks for the comment nonetheless).

[@stillness0072]

​@@gena_bazarkodefinitely positive

[@mtcru]

knowledge is power.

[@lohikarhu734]

Very positive!

[@ypaulbrown]

@@gena_bazarko sounds positive.....best wishes....PB

[@mileshember3501]

Another impressive example of your work and skill. My first thought was to worry about the risk of dropping the level from the bar by accident, onto that harsh concrete. Accidents happen…. So I suggest a simple wood panel mounted around the bar, so anything that slips does not fall and get damaged. Those levels are very valuable!! Regards and best wishes from Cambridge.

[@gena_bazarko]

This is a very useful idea. During this work, I constantly pay attention to this, I try to be as careful and accurate as possible, but sooner or later something will happen anyway. Indeed, it is much better to increase security with insurance.

[@paralax8714]

Hey guy, im from Brazil and very glad to watch you. This subject is what i was searching. Please, continue demonstrating how to achieve precision flat with the bubble level method cause it is affordabe to many of us. Thank you a lot.

[@Gersberms]

This is super cool stuff. I'll never be able to use any of this knowledge but there's something about manufacturing such accuracy that really fascinates me. Even just the idea of attaching large dials to those leveling bolts is super neat!

[@peachmunich]

I have the highest respect for guys like you, who have the endurance to work on microns! 👍👍👍

[@lukeamato423]

🇺🇦🇨🇦. Keep making videos i learn something new each time i watch your stuff...i made my own machinist level using your video

[@Koptokaf]

Hello Gena (short for Gennadiy?) The measurements you are chasing are surpassingly impressive, great work! I think you should look into Hertzian contact stresses as you go along. The geometry and gauging force of the tips of your (lovely) microcators can and should be accounted for when you are looking at 100nm increments. It will have an influence on the absolute values for straightness and flatness relative to the values read from the dial. Your videos are incredible. The visualizations are some of the clearest I've seen on the topic on KZbin so far. Really well done. Also - are the microcator surface gauges still for sale? or have they all been bought already? Love from Denmark -G

[@gutsngorrrr]

I just wouldn't have the patience to do this sort of work, but it's so interesting to see it being done.

[@gena_bazarko]

It only seems so at first. When you measure a surface and get its relief, you seem to have second sight, you see where the highest places are, where the deepest ones are. Then you lower the highest ones, and the surface is already flatter. I did this several times, and the strip turned into a very useful and valuable tool, and most importantly, you control everything yourself and see everything.

[@gutsngorrrr]

I have done basic scraping, to true up things like a surface plate, but this is on another level. Things like a controlled temperature room and not touching the item under test etc.

[@commenter5469]

Генадій! Страшенно радий знову вас бачити!!!

[@РавильТрофимов]

There are few such authors on KZbin. it's a ray of light .

[@youteacher78]

I'm a Dutch machinist and fabricator who used to work on old Eastblock mills and horizontal drills like Czechoslovakian TOS and even old USSR (converted to almost working CNC) mills for workpieces up to 9 tons. I always appreciate true flatness when I see it! I do wonder why you use a pencil instead of machinist blue (or just common blue oilpaint like we used)?

[@gena_bazarko]

Hello! I use graphite as a lubricant, it grinds into an extremely fine dust, gives good glide and does not interfere with the accuracy of measurements.

[@youteacher78]

@@gena_bazarko yes! A lubricant. Now I see. Дякую!

[@ced3098]

@@gena_bazarko take in consideration as pencil have a hardness and that better to B grade ( 4B or 5B are aeasy and cheap to locate ) than H grade , H grade pencil ( hard ) are also use as standard hardness testing for paint coating . I use Tungsten disulfide micro powder as that a best low friction dry lub DONT USE Molybdenum disulfide as that turn in acid with water / humidity .

[@ypaulbrown]

new subscriber here, this is wonderful, thank you so much from the USA, Paul

[@fladder1]

I love how you use a Dremel to speed scraping up! What kind of grind stone do you use in the Dremel?

[@gena_bazarko]

To do this, it is convenient to use an abrasive in the rubber mass.

[@ced3098]

To keep the stone flat as a reference surface that better to use only the Witworth method ( 3 stones A B and C ) or to grind the stone of a surface grinder with a better straightness as requested on the stones . the 3 flats / stones allow to reach incredible Hight flatness with not need of local scrapping . 2 stone surface loss the flatness , 3 never . A thing to carefully check with Witworth 3 flats is when you lap narrow surfaces and long surfaces , to stay perpendicular to avoid to generate yaw . The problem is the size of the stone compare to length of the surface to rework , if that a convex defect that ok , if that a concave defect that far more difficult as your stone work only of the edges. I use the chest board method , divide the surface in square and record each level UP/DOWN and rework each square surface , after I subdivide the previously square and over lap the pitch to avoid border effect and rework again . I am impress by the sub micron level you reach , perhaps you can try to measure '' in line'' so parallel strokes and in V so from left to right side and right to left both side with your level to check if you have yaw ?

[@Michel-Uphoff]

Gena, I've enjoyed your videos and I think using an AI voice is a wise decision. I do the same on my channel. I know some people hate it, but they forget that these videos are meant for many. Also for people who have difficulty understanding English with a heavy accent. The same people forget that it is way more work to write down all your text, feed it to a voice generator and paste the spoken text back in the video. Way more work than a voiceover chatting incessantly. So you are doing many a service with this extra effort, and I applaud you for that. 👏 I myself am sometimes busy with very accurate measurements, and I wonder how you take into account the inevitable deflection of the beam due to gravity. My heavy cast iron surface plate flexes up to 3 microns under its own weight if I balance it not correctly, so the long slender beam you are using may sag even more. 1µ/m is an extraordinary result!

[@j.6756]

Metal bars will change shape if they are too long to resist gravity from one end to the other... that's why they need to be vertically thick enough too manage their own weight... and metals will expand or contract with temperature changes... Granite will not change shape... it is stable and not affected by its own weight or by temperature differentials... that's why "surface plates" are made of granite... because of their stability when their... surfaces as referances... are required for measurement purposes... His granite beam looks like sawed lumber... because it does not need to look pretty... it just needs to be massive enough to bridge the size of the surface area of the required measurement zone... As a bonus... size overkill is easy and relatively inexpensive... when done with rough sawn granite... This genius really knows his stuff... and with that knowledge... with his... "back to basics"... understanding of immutable laws of nature... develops and uses... "simple looking tools"... which can make incredibally accurate measurements... but simple tools... ???.... they are not... basic tools... ???... yes... Simple tools... ???... no... Meticulous tools... ???... absolutely... Amazing tools... ???... definately... !!!

[@IkarimTheCreature]

what an awesome leopard paint scheme lathe you have in your workshop! You don't see much variation from the grey or green colour schemes usualy.

[@anemac9]

Have you encountered changes over time in the beam? Great work and thanks for sharing!

[@gena_bazarko]

I now have the technical ability to measure surfaces very accurately, so I can conduct research into how different materials behave. But this is a big job, you need to prepare for it. I am at the stage of development where I can start such a project. I'm preparing for it.

[@kooldoozer]

Very good Gene ! -----Doozer

[@jimsvideos7201]

Thank you very much!

[@daveb3910]

Very cool setup, interested to see more

[@arachnophob97]

Hopefully you've annealed those welding spots of the reinforcement, or you'll see later that your flat is not flat any more. Usually those flats are built from cast iron, kept outside for years to release any internal stress.

[@gena_bazarko]

Preliminary circumstances have developed in such a way that these actions have been completed by approximately 98 percent. Because as the project progressed, the plan was adjusted.

[@erotdaman]

Should it be good to have a counterweight thats have the same weight as the spirit level? That would cancel out possibel movements of the base if you started them both from the center and moved them the same distance in oppisite directions from the center for every mesurment.

[@gena_bazarko]

When I made the body of the bubble level, I tried to make it rigid, but also lighter. At this weight, my level does not create any noticeable problems and no additional measures are needed. It would probably be possible to attach several rubber balloons with helium to it).

[@AlbertRasch-ev8uc]

Excellent video, clear and concise!

[@rotormotored]

Can it be scraped using a drummel tool and what kind of end do you use?

[@DB-thats-me]

I don’t know if adds to anything but. You could, if you need, give your screw jacks finer calibration by making them with differential threads. 😎

[@gena_bazarko]

There is a bolt with a thread pitch, I don’t remember exactly now, but probably 1 mm. The jack is made simply from a bolt and two nuts, plus one washer between the nuts and epoxy glue. Some technology is performed to eliminate thread defects on the bolt from dents when pouring and transporting the bolts, and an assembly technique is used when two nuts are in such a position that the bolt rotates tightly in these two nuts, without play. This position is fixed with glue. If you need to position with an accuracy of 1 micron, this is quite enough. If we are talking about 100 nanometers, then a very fine thread or differentiated thread is needed.

[@IvanIvanov-wh8td]

Сколько микрон снимается за один проход дремелем ? А за полный крест?

[@gena_bazarko]

Я вовсе не считаю, что дремелем работать лучше, чем шабером. Думаю что дремель снимает примерно так же, как и шабер. Только нагрузка на руки возможно ниже.

[@IvanIvanov-wh8td]

Я шатал мотал шабером махать + у меня есть гранитные камни, там только дремель !

[@IvanIvanov-wh8td]

Все ништяк, кроме нюанса, где я рамным уровнем плиту 400х400 на 3х опорах перекачивал .... стоит проконтролировать этот момент И еще вопрос - а что случилось с пузырем 3 секунды ? (0.014 мм/метр)

[@gena_bazarko]

О, старый знакомый из Питера. Здравствуй! У меня есть одна ампула 0,01 мм\метр, это Английская ампула современного производства, я ее купил в Англии у производителя, довольно дорогая, стоила 40 фунтов. Хочу сделать для нее корпус более совершенной конструкции, анимация этого проекта есть в моих видео.

[@IvanIvanov-wh8td]

Был же китайский пузырь ? По англицкой ампуле видео не сделаете ? Хотя в текущих реалиях того, что нельзя называть, врятли получится заказать такую

[@IvanIvanov-wh8td]

Я под свою ампулу сделал колбу, и вроде как раскрепился И родил диференциальный винт м10х0.75 и м5х0.8 Итого 0.05 за оборот Теперь надо родить корпус с 2мя твердосплавными копытами

[@IvanIvanov-wh8td]

А еще, на этот акаунт уведомлялки не приходят, приходится отдельно помниьь и чекать кто чьо отвечал ....

[@gena_bazarko]

@@IvanIvanov-wh8td kzbin.info/www/bejne/rGa3nmV5pJupgpo

[@car9167]

Sorry but I don't understand your method. Did you put the bubble device in the middle and then adjusted the jack screws until the bubble was centered and then moved the whole bubble assembly across the surface left and right to see the deviation from the center position (call this a datum)?

[@gena_bazarko]

This method consists in the fact that after each movement of the bubble level, using jacks, I bring the bubble to the central position on its scale, and from the microcators I see by what linear amount the movement occurred. We select the measurement scheme arbitrarily, based on current tasks. I have already tested this method with practice. High accuracy is achieved. I made the same surface strip with an error accuracy not exceeding one micron. In the future, I will show this work in my videos quite clearly and in detail, having done it directly on this sample.

[@car9167]

@@gena_bazarko I think I understand what you're doing. You're using the bubble always level (perfectly horizontal) by adjusting the jack screw on the right and you read the right microkator to see what the deviation is. By traversing the bubble over the straight edge and adjusting the screw on the right, you map the surface deviations so you know where to scrap/polish or whatever you use to remove minute material

[@gena_bazarko]

So, the fact is that in order to place the bubble exactly in the center, you need to adjust the microcator at a distance of one meter to one micron. Raise it a micron higher, and you already see that the bubble has moved away from the center to the side. Therefore, the accuracy is very high. The microcator scale is much more accurate than the bubble level scale.

[@lukeamato423]

Its impossible for alot of us to find a microkator at a reasonable price .if you ever have any to sell that would be very helpful

[@IvanIvanov-wh8td]

Наследие СССР их тут вагонами делали

[@AnalogDude_]

I had colleague and we used to place industrial machines, he had ca 15cm x 15cm metal rectangle with a like ca 10 cm long tube. It went nuts just by placing some smoking paper at on side, it was not DIY.

[@GuyTaylor-w8w]

Id be interested in a video about your wooden crane at the start of the video

[@gena_bazarko]

Well, this small crane is very simple. There will probably be a case when I show how I do something by lifting a load with this crane, then I will quickly show it in more detail what it is like).

[@lohikarhu734]

I miss your voice... But, maybe, it's easier for you to type in a description, have it translated and speech synthesized, lets you be less concerned about the English... Still, there is some character to your voice that I find quite suitable to your subject... Just a thought, but it's your life, your channel, keep up the nice work...

[@gena_bazarko]

Hello! I hope that over time I will solve the problem of the English language, but now it is more profitable to use a synthesizer, in this way I will have time to make about thirty percent more video material for the channel, and this is of significant importance.

[@rodfrey]

@@gena_bazarko I appreciate that you did the introduction in your own voice, it was a nice balance. Presenting in a second language would be terrifying to me.

[@gena_bazarko]

@@rodfrey Hello, glad to see you! I can’t start studying English deeply now; I would have to devote a lot of time to this. It is more important for me to publish more material on KZbin, since I have a very large volume of potentially interesting scripts. Artificial audio greatly speeds up the release of a new video). Thanks for your attention and comment.

[@optroncordian7863]

Precisely flat surfaces can be done with the three plates method. It does not need precise instruments.

[@rodfrey]

/r/confidentlywrong Yes, we all know about the Whitworth method. But how do you measure where you are? And what about when you get to the point where the bottom plate is always convex, at about 2-3 microns flatness? Watch Renzetti's videos (and the others on this channel) - these guys pushed past the limits of the 3-plate method years ago.

[@optroncordian7863]

@@rodfrey The improved Whitworth method proposes using a paint to track the progress... And, as for the precision, I guess, repeating is the way ...

[@gena_bazarko]

Hello! I will need this precision strip 1070 mm by 60 mm in the near future to repair a pair of linear movement. I will complete this job in about 40 working hours, and I will have a very accurate tool that I need. Imagine if I go the route you suggested, first I need to make three surface plates 800mm by 800mm. Then, using one of these plates as a reference, make this precision strip. Do you see the difference in the difficulty of solving the problem?

[@mshigaev1564]

Живой, курилка!

[@СергійМенько-х1ь]

Я у захваті від робіт цього пана.

[@thomaskrenn3808]

👍👍

[@joenicotera2991]

Haven't I seen your video before? I guess they all seem to be the same to me. "....The peculiarity of this method is that I control the position of the measured plane. ..." It's a pretty peculiar method but I'm not going to bother to figure out what you are trying to say. It's too difficult for you to figure out and I'm not going to figure it out for you. What I find pretty peculiar is that you are from some part of the world where you can't just buy a tool if you need one and nobody has the common sense to realize that if they can't buy a necessary and fundamental tool then they should be selling them. In the light of the previous paragraph, Granite is simply easier. If we were to think through the processes of tool making, I need to make basic tool A to make basic tool B to make basic tool C...the chain of precision processes is the shortest. All you need is a lap, the flattest surface that you have and a way of checking the finished product. It is already stable and an easy material to cut with tools that need little maintenance, expense or preparation. If nobody on you your entire continent can buy a straight edge then you should plan on selling surface plates and squares as well. After-all, if nobody else has that much common sense then you can stop making suits and start making sense.

[@gena_bazarko]

Hello! You wrote such a long comment, but unfortunately, probably due to the translation into another language, I did not understand everything exactly. Really, I'd rather make straight edge than buy it. It will be very expensive for me. And I can do it quite successfully myself, and then I can repair the metalworking machine. I think that's good.

[@joenicotera2991]

@@gena_bazarko Oh good. You are alive. Make a note that I did give you the right answer. Simplify the problem.

[@joenicotera2991]

@@gena_bazarko ...and with further thought...There is an easy way without fighting government regulations or personnel. Simply take any measuring device and measure the length of your machine ways. Then take the same measuring device and measure your straight edge only when you do so mark the best area of the straight edge in pencil. Then turn your straight edge 180 degrees measure and mark it again. Now take the straight edge over to the machine and scrape the machine so that it is the best in both orientations of the straight edge. By doing this what you will be doing is following the same procedure as is used for lapping a part.

[@mileshember3501]

Wow, this must be an American, one of the ones who writes thoughtlessly rude comments out of pure ignorance and with no appreciation of the circumstances someone else is living in. Gena does remarkably refined work, similar to the best anyone else has offered up for free on youtube - on the level of Robrenz, Stefan G, and other genuine practitioners. He produces extremely informative and educational material, reflecting his experience and skill. Compared to this, most commercial American engineering is at the level of someone banging rocks together. If you are able to read the news, perhaps you can guess why he is not setting up a factory to manufacture straight edges in Ukraine this year? You've not said anything interesting, and it seems very unlikely that you have even a fraction of the knowledge on display here.

[@joenicotera2991]

@@mileshember3501 Good. I guess you know better than I would, so you can just move on to insulting someone who gives shit what you know.

[@scriming]

why is the VISA logo everywhere? Oh, maybe as it is connected to usa and money like ua? LOL

[@IrenESorius]

Maestro,, 👍‍‍😎👍‍‍