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Gena Bazarko
Ukraine
Приєднався 13 кві 2022
I live in Ukraine. Now I am preparing for a major overhaul of metalworking machines for my workshop. I need to repair a lathe, a milling machine, a grinding machine. First of all, I need a special tool, a straightedge, a surfase plate, a 90-degree test angle, a 55-degree straightedge. I will make all these tools myself with high accuracy, (within a micron). This work will be shown in the video.
Patreon: www.patreon.com/Bazarko
Deviation from an angle of 90 degrees. Control. Continuation of repairs.
www.patreon.com/Bazarko
Переглядів: 771
Відео
Repair of a linear movement pair with control of its geometry using an autocollimator.
Переглядів 1,7 тис.14 днів тому
www.patreon.com/Bazarko pC7y2xcVo8RS/
Very accurate measurements with bubble level
Переглядів 10 тис.2 місяці тому
www.patreon.com/Bazarko PayPal: den.gennady19@gmail.com The peculiarity of this method is that I control the position of the measured plane. The measurement scheme can be drawn up arbitrarily, based on the desired degree of detail of the surface topography. In each new position of the bubble level, according to the measurement scheme, I set the bubble exactly in the central position relative to...
How to Create a Straight Line with Curves?
Переглядів 5 тис.4 місяці тому
www.patreon.com/Bazarko PayPal: den.gennady19@gmail.com When you're working on refinement or simply checking tools like surface plates and straight edges, having the ability to measure these instruments with absolute precision comes in handy, far exceeding the quality of precision of the tools themselves. This becomes possible by utilizing a special reversible micrometer, and the double measure...
Repair of a 3000mm long machine guide according to autocollimator readings.
Переглядів 3,1 тис.8 місяців тому
www.patreon.com/Bazarko
Practical work with an autocollimator.
Переглядів 3,5 тис.8 місяців тому
www.patreon.com/Bazarko "The wear and tear of the linear guide of this machine, which I measured, amounted to 0.1 millimeters at its most worn point."
Precise spirit level
Переглядів 2,7 тис.9 місяців тому
www.patreon.com/Bazarko I ask viewers who know additional information to report it in the comments or by mail. What other manufacturers of ampoules do you know? What is their accuracy? Are there more sensitive ampoules?
How to "catch" a micron.
Переглядів 3,7 тис.Рік тому
Is it possible to achieve high accuracy on your own in a conventional workshop? Yes, it is possible to obtain an accuracy of over one micron with a part size of half a meter. The video shows proof of this.
Necessary before repairing the milling machine. №3
Переглядів 1,4 тис.Рік тому
www.patreon.com/Bazarko Preparation for the repair of pairs of linear movement of the milling machine. Correction of axes of linear movement when repairing pairs of linear movement.
Necessary before repairing the milling machine. №2
Переглядів 1,4 тис.Рік тому
Before starting the repair of the machine, it is necessary to check the angles at which its linear motion feeds are located. As a rule, they have deviations from the ideal position. Knowing these data, they should be taken into account when repairing. Due to this, the position of the axes will be close to ideal. www.patreon.com/Bazarko
Necessary before repairing the milling machine.
Переглядів 2,3 тис.Рік тому
www.patreon.com/Bazarko Before repairing pairs of linear movement of the machine, you need to know their position relative to each other and the machine spindle. Then you can correct their position.
Autocollimator 0.2 arcsec
Переглядів 4,1 тис.Рік тому
Autocollimator 0.2 arcsec www.patreon.com/Bazarko
Сhecking the surface plate with a microcator 0,0001 mm.
Переглядів 13 тис.Рік тому
Сhecking the surface plate with a microcator 0,0001 mm.
Excellent presentation of an accurate and systematic measuring process. I'm wondering one thing: did you check beforehand whether the machine was still exactly level everywhere?
I don't know how the foundation is equipped. Everything below is filled with concrete. I hope that the requirements of the technical manual are met, and everything is firmly fixed on a solid foundation.
This is a Gem again, Gennady! :) Thank You for paving the way, we would have to spend time and efforts to investigate (and with uncertain luck). I have missed Your previous video, somehow, although I have subscribed. I am happy to see them both now. I also have a lot of scraping to do with my old machines. Your presentations are enlightening and encouraging, a recipe to get it well done if only simply followed with care and attention. It is hard to imagine a process more efficient than Yours. Thanks again! Btw You have not removed the information about the sale from Your last video yet, so I hope it is still relevant and will try to get in touch with You again with that regard :) /Grzegorz
Are you Grzegordz from Poland, whom I know?
Yes :) You have my precision plates ;)
Excellent Grzegordz! I have already gained my first experience in repairing a guide with an autocollimator. You see, I'm working with the same as yours, 1 arc second. Already with this autocollimator you can do the job perfectly and get excellent accuracy on the guide. If you add a good camera and display the image on the monitor, the sensitivity of the device will significantly increase.
Thanks Gena, maybe You are right and 3-5 microns per meter is enough for me at the moment. My mill is also worn out at as much as around 0.1 mm on the main axis. The tricky part being that I have 45deg dovetails on table parts weighing hundreds of kilos
Another wonderful video. Is it possible that in this case you mean 'play' instead of 'backlash'? Not important, really. Thanks for the video!
Hello! I use GPТ chat for translation. Of course, I checked the play. That is, what freedom of displacement is available that has arisen as a result of wear.
Will you also verify that the left to right travel along the bed ways (x axis?) is square to the in-out (y axis?) travel?
Well done 👏
wonderful explanation of the thinking behind the process !!! thank you , best regards , Steve
Can you explain ( hopefully in the next video) how you measure the actual height of A1, A2, D1 and D2 individually?
If I did the math right (no guaranty ;-), the total out of tram vertical angle of arctan(0.26/2/300) ~= 1.48969017 arc minutes means dropping B1/B1 by about 0.43 microns. And moving back toward tram is generally a good idea. Since C1/C2 can not rise up then B1/B2 need to drop, but only if D1/D2 have an excess of greater than 0.86 microns above flat, else the whole run will need to drop and that is a lot of work, especially when it only corrects a cosine error in the vertical measurement of ~=94 nanometers per meter! Great work, thank you for sharing!
Hello! I think you calculated everything correctly. Of course, I use the data received to the extent that it is rational.
Озвучуйте, будь-ласка українською теж. Не легка тема - важко розуміти англійською
Так є ще один мій канал, Гена Базарко, там це відео є з Українською мовою.
Thank you Gena, Im making a surface grinder and was wondering about the best method to align the axes.
Your care and precision are admirable
Slava Ukraini ❤
😀👍
Gena, I'm starting to watch your videos now, and I must say: awesome job!!!
Great video, brother! Slava Ukraini!
I hate to see that indicator needle moving!
Does standing on the floor next to the autocollimator cause any error, possibly from the floor sagging under your weight?
Yes it is. The autocollimator must be installed completely motionless. I have a hard, heavy stand underneath it. The floor in this case is quite static concrete.
@@gena_bazarko Very good. Thank you from USA.
Very interesting! Thanks for the upload.
Дякую за відео. Цікаво і доступно пояснюєте свою роботу. Доречі, використана чудова графіка!
Great video and skills of course as always! And the detail again with insulating the tool from heat transfer as you handle it is something that almost nobody does. Much respect to your work 👍
glad to see you again. i m not the best at english, but have to say that i was very surprised to know that exist one more yt channel then basic one. maybe adding some information on both of channels and adding some descriptions under each of videos with links to the both channels - will help people to find more about your work? thx for your job, its very rare content here.
the resolution was .001 mm not .0001 mm.
Hello! Look carefully. There is a close-up of the microkator scale. It says 0.1 microns, which is 0.0001 millimeters. In addition, pay attention when I press the corner of the surface plate with my finger, how the arrow of the device reacts. I do this on purpose so that the audience understands that the device really functions. And it’s roughly clear how sensitive the microcator is.
Grandes conocimientos , es un placer ver tus videos . gracias
Another great video! Thanks!
Hello! I'm glad you watched the new video. Thanks for your comment and support! I remember the device we talked about. Your microcator is set aside for you. There are only three orders so far, but we probably need to start producing 10 sets. I finalized the project and improved the device somewhat. There will be a separate video about this. This work that I am doing now is really very interesting. Its ending will be some kind of “discovery” for me. What kind of linearity can this method achieve? Still a mystery. Practice will show. Thanks again! Good luck!
@@gena_bazarko Take your time with the device. I'm not in a hurry. Loving these educational videos you make. Every one is a treat.
What an amazing work ethic!
You have the most beautiful content ❤ Slava Ukraini
One the straight edge, it looks like you have welded the diagonal braces in place... I wondered if epoxy might be better, not generating any heat stress? But, I'm sure that you must have found a way to stress relieve the structure, maybe some temperature cycling, plus some "rest time" before finishing? Again, just an amateur question? BTW, it must be very hard to concentrate on such detail work with so much noise! Looking forward to next time! 🇨🇦🐻
There were some nuances to this project. I didn't take the most direct route here. I assembled the additional diagonal reinforcement separately and glued it, as you suggest. Everything will work out well and accurately. If I do this again, I will do it more rationally. The noise doesn't bother me at all while working. Of course, it disturbs the viewers. If I had not reduced the noise when editing the video, it would have been very bad. But I also can’t turn off the sound completely, because my actions in the frame must be accompanied by appropriate sounds. And the reality of events is what it is, and I’m telling a real story in real, not ideal circumstances.
Your content is interesting as always. Thank you.
The scraping would be not just inconvenient, but *damned uncomfortable*, and make a tedious job seem like days of torture!
I hope that the preparatory operations will be completed soon and I will begin this work. I will control how much working time is required. It is important to consider that the alternative repair option is much more complex. This is disassembling the machine. Transporting a two-ton part to a facility that has a huge surface grinder. Paying for this is by no means a cheap service. After the new installation of the machine on the foundation. Machine assembly. All this is very expensive. It’s better that I try as I planned, even if I have to strain myself. ).
And, sir, by keeping the machine in place, not all the problems and possiblity of disasters during a move, your in-place "fix" might well have a better result, with fewer risks... Tedious and uncomfortable, but you'll do a great job!
I miss your voice... A question ❓ is it reasonable to use a precision level to detect "First-Order" errors? I used a "decent" one on my lathe bed and easily spotted some wear areas... But, I'm not at your level, just a thought. Keep well!
If it were necessary to measure a horizontal surface, then the level would fully replace the autocollimator. But here the guide is V-shaped, and the level will not provide complete information about its condition. Information will be obtained, but it cannot be accurately expressed. Such information can be taken into account as partially and indirectly reflecting reality, if it is not possible to obtain a more relevant one. You can get some idea of the state of the surface. But for cutting metal from a guide to correct its shape, this information is not enough.
Perhaps I missed an earlier video, but how were the four surfaces of the two prisms scraped such that each pair of surfaces of each prism were at 90° to each other and the pairs of surfaces on different prisms were coplanar? I can see how pairs of surfaces for each prism could be scraped relative to a V-block reference. Were the prisms aligned with each other by mounting them on the large surface plate and then fastening these prisms to the square tube with screws and epoxy? This is very impressive work!
Good day! There is a moment in the video when you see a small ruler floating on the surface of the granite surface plate. This surface plate measures 600 mm by 800 mm, it is clear that it is a little more than a meter diagonally. This is a plate of accuracy class 0, according to the classification adopted by us. Such accurate slabs are not often found. My friend has this plate in his workshop. I went to it, on purpose to this surface plate, to make the prism planes on this stand. I had to drive 150 kilometers to a nearby city (Kyiv). It was a lot of work, scraping these prisms, and little time. It was desirable to make the prisms in one working day so as not to stay overnight. That's why I couldn't make a video series. Therefore, unfortunately, this part of the work is missing from the video. But the prisms are made properly, very precisely. Wonm were first attached at the edges, and then their planes were made.
@gena_bazarko was there a precision angle of exactly 90° used to scrape the 4 surfaces?
I have seen many scraping videos, and I was left with the question " how do you scrape for geometry other than flat ? " now I am learning !!! cant wait for the next video! thank you , stay safe , best regards Steve
The Connelly book Machine Tool Reconditioning goes into a lot of detail about how to measure and create various machine way designs if you're interested in reading more. Though it is rather expensive in it's printed form.
Very impressive,, 👍🌟👍 Thank you kindly for sharing Gena,, 💖🙏💖
Чудово, але не забувайте про установку і фундамент. Якщо верстат стоїть на брусках чи рихлому фундаменті, то всі маніпуляції з ремонтом геометрії можуть бути марні 😢
Оце неочікувано, Дядько Максим зробив перший коментар до цього відео! Вітаю! Дякую за пораду! Про фундамент дізнаємось пізніше(. This is unexpected, Uncle Maksym made the first comment on this video! Congratulations! Thanks for the advice! We will learn about the foundation later.
Impressionnant!
Please how you make the micrometer stand
Hi - you Mentioned you have autocollimator mirrors for sale , do you still have them ? Thanks
Hello! Yes, I have mirrors for an autocollimator that I intend to sell. Write to me by email. In addition, there are autocollimators, 589 nanometer laboratory lamps, flat interference glasses and the like. den.gennady19@gmail.com
Super job! Nice video too!
Your thoroughness is amazing.
Nice video! I was wondering if it would be beneficial to use a lapping plate wider than the other pieces? That way app points get equal contact time.
Amazing work well done
Fantastic. Very talented.
I want to purchase one , please share product details in description
Hello! Now I have for sale an autocollimator of 1 arc second, there is a 0.5 arc second, there is a 0.2 arc second. Everyone works in two coordinates at the same time. Autocollimators can be equipped with one, two or two plus a third mirror that fits onto the lens at an angle of 45 degrees. The set has a special plywood box with places for storing the set. The autocollimator and its accessories are tested before sale. Everything is in good order and corresponds to its original characteristics. Please write to me by email, I will provide detailed information and photo or video material. My mail: den.gennady19@gmail.com
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. 😎
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.
Вітаю! Даний метод вимірювання описав автор Dan Gelbart у своєму відео "Building Prototypes Dan Gelbart part 17 of 18 High Accuracy" приблизно на 23 хвилині. Цей метод він назвав "reversal method". Не думаю, що він є автором.
Так, я колись дивився це відео, але відшукати його, коли готував свій матеріал, не спромігся. Дякую за точну адресу цього єпізоду.
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.
Hi again! Just wanted to comment on the AI- voice. Yours is much easier to follow. I find myself zooming out and not listening when it's the AI voice. I understand if you may prefer to do it that way. But I much more prefer your real voice. And it struck me how much ones own interest in a topic comes from the actual presentation. You definitely beat AI any day!
I love your unique way of illustrating! The physical demonstrations, the crayon pictures, animations. It's so good! And there's always a plan behind everything, like when you dropped the small tool to illustrate the raised burrs and crater from the impact. Don't worry about your English, vocabulary and pronunciation. It's perfectly understandable and not at all lacking! I'm a Swede and I know the feeling of grasping after the correct term. Feeling unsure of pronunciation etc. Keep up the great and interesting work, looking forward to all your future videos! And I hope the war will end soon.
Thanks for making the video! I am starting out as a home machinist with a cheap Chinese 7x14 mini lathe and a Sieg X2D mini mill. I am learning metrology so these will be my test and learning subjects to improve upon. Once I am confident with these I am planning a high precision mill with concrete or epoxy granite, so developing precision measuring, lapping and scraping skills are essential.
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 UA-cam 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