Bench Grinder. Removing vibrations, balancing the abrasive disc, faceplate and more.

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  • Опубликовано: 11 янв 2025

Комментарии • 363

  • @grain-diose
    @grain-diose  5 месяцев назад +3

    Friends, if you are interested in the development of my channel, you can support it here - buymeacoffee.com/graindiose

  • @Bob_Adkins
    @Bob_Adkins 2 года назад +104

    A balance washer can improve wheel imbalance. Make the washer about 3mm thick, and 70-80mm in diameter. Drill the shaft hole 1-2mm off center. Mark the wheel and washer. Try the washer rotated in various directions until the imbalance is gone.

    • @mikem6549
      @mikem6549 Год назад +21

      Sounds safer than being hit by a flying 5g lump of solder.

    • @GenePavlovsky
      @GenePavlovsky Год назад +27

      Better make two washers (with centered shaft holes), clamp them together, (add index marks), drill multiple holes along 180 degrees of each washer's outer circumference. This way, rotating the washers relative to each other, it's possible to adjust the amount of weight correction from zero (index marks 180 degrees to each other) to the total weight of material drilled out from the lightening holes (index marks aligned).

    • @Sydney268
      @Sydney268 Год назад

      @@mikem6549 lol, yeah that's what I thought

    • @daleolson3506
      @daleolson3506 Год назад

      How many pounds is 3 mm?

    • @Bob_Adkins
      @Bob_Adkins Год назад +4

      @@daleolson3506 Depends. Is it centigrade, or kelvin?

  • @dhess140
    @dhess140 11 месяцев назад +18

    Well done. All grinders should come from the factory like that.

    • @grain-diose
      @grain-diose  11 месяцев назад +2

      Then they would cost twice as much.

    • @starseeddeluxe
      @starseeddeluxe 4 месяца назад

      It shouldn't even be legal to sell a grinder with stamped steel washers. Considering that balance issues also create a major safety hazard. Those stamped steel washers should have been outlawed.

  • @TheWtfnonamez
    @TheWtfnonamez 2 года назад +18

    I just learned about two years of metalwork class in one video.
    I am reasonably smart, done a bit of metalwork, and know a few things. Its been a long while since I sat down and watched a video that school me. Excellent work.

  • @grain-diose
    @grain-diose  2 года назад +35

    Friends, if you don't have Somafix, use epoxy glue, it's even stronger. Epoxy gets into the pores of the abrasive disc and it's a stranglehold.
    They write to me here in the comments that it will fly off and gouge out the eye. They did not see and did not try to tear off Somafix, especially from a rough surface. Yes, I needed to show epoxy bonding, but I was sorry for the time, I'm sorry. I do not recommend any other glue except for CA Somafix and epoxy, it can really be dangerous.
    Two Ways to Make a Faceplate for Bench Grinder (No Lathe) - ruclips.net/video/CVYg9FFsLVo/видео.html
    00:00 Beginning
    00:37 Key points
    01:08 For some theory
    01:23 End-face runouts
    01:28 The motor shaft
    01:44 Thin forged washers
    02:21 Faceplates on Makita GB602
    02:49 Faceplates on Einhell TH-BG 150
    03:11 Discs with a hole of 12.7 mm and 32 mm
    03:28 Faceplate 3D projection
    03:44 Plan for the next video
    04:09 Faceplate seal when mounted on a shaft
    04:34 Grinding the faceplate
    04:53 Correction of the radial geometry of the disc
    05:40 Disc balancing
    06:53 First disk test
    08:15 Final test of both disks
    By the way, the less vibration, the longer the bearings in your grinder will last.

    • @yull7387
      @yull7387 2 года назад

      7777777766@

    • @dpeter6396
      @dpeter6396 2 года назад +3

      I was taught those things by my Dad 60 years ago and never failed to tame a nasty grinder! I can't stand unnecessary vibrations anyway but on a grinder it results in a poor finish. I've never seen glued on weight correction and I would not recommend it. The next step with that grinder is to change to a better grade of ball bearing. Those sound horrible!

    • @grain-diose
      @grain-diose  2 года назад +4

      @@dpeter6396 A good bearing is the basis, it is not even discussed. And discs all require balance correction, even professional ones. But professional ones have a special washer with three weights and a groove for moving them. There are many videos on RUclips about it.

    • @grain-diose
      @grain-diose  2 года назад +5

      @@abcxyz2927 And what do you say to those who drill an abrasive disc to remove its imbalance? In fact, the disk has a protective casing. And you first try to tear off the CA Somafix glue or epoxy from the abrasive disc. And the disc can scatter itself also from constant vibration when it is unbalanced, have you thought about this? If everything is dangerous for you, do not buy any devices and machines - any of them are life-threatening. People manage to die in the bath with a cell phone and a cheap Chinese charger, do you want to save all the idiots?

    • @gary851
      @gary851 2 года назад

      paint it black and it will start rapping, then it will make kid and run away hehe

  • @f.d.6667
    @f.d.6667 2 года назад +10

    This must be the *best* video on bench grinders on YT. Awesome work!

  • @sergeyepifanov90
    @sergeyepifanov90 Месяц назад +1

    Пару лет назад проделывал практически всю описанную работу. В качестве балансировочного груза я использовал термоклей, нагревал камень феном и пропитывал боковую поверхность. В любом случае при работе нужно обезопасить себя от искр и вероятного отрыва балансировочного груза.
    Радиальное биение убирал закрепленной "болгаркой" с установленным алмазным диском. Подводил этот диск к точильному камню и медленно вращая камень рукой убирал его радиальное биение. Пыли много - нужно использовать маску, желательно и пылесос.

  • @grzegorzk5225
    @grzegorzk5225 Год назад +10

    Doskonale wykonana robota, której się nikomu innemu nie będzie chciało wykonać.

    • @xvbvcv
      @xvbvcv 9 месяцев назад +1

      A wystarczy nie kupować chińskiego gówna. :D

    • @andrzej3511
      @andrzej3511 2 месяца назад

      @@xvbvcv A ty myślisz, że ta szlifierka, choć jest obrandowana jako niemiecka firma, to skąd jest?
      Wbij sobie do głowy, że większość silników elektrycznych na świecie ma gdzieś we wnętrzu chińskie krzaki... I tak jak kiedyś w Europie, tak i w obecnie w Chinach: są marki badziewne, za grosze i są marki bardzo dobre za niewiele większe pieniądze. Cud? Nie, prawdziwie wolna konkurencja.
      Więc kupuj szwabskiego Boscha z chińskim silnikiem i pchaj szwabom kasiorę w dupy...
      Ja kupię za trzecią cześć ceny chiński oryginał!!! :))))

  • @mayapfister
    @mayapfister Год назад +3

    Thank you very much for this video. I will have to try this out on my bench grinder, which has really bad vibration, like yours at the beginning! I was not aware of the reasons for the vibrations and how it can be fixed. I thought it was just a „not so good quality machine“ and I had to live with it. You have shown that this is not the case and how it can be improved a lot. 👍

  • @mjremy2605
    @mjremy2605 Год назад +5

    Damn, I love the Russians! Every technical detail and sheer artistry of wheel balancing covered. Like everything they do, it is first class. Art, Mathematics, Physics, Space Flights, Lacquer Paintings of Fedoskina and Palekh, the Hermitage treasures, the Kremlin treasures, Rostov Finift, their gymnasts, the Bolshoi Ballet, Chekov, Pushkin, Dostoyevsky, the music of Prokofiev, Tchaikovsky, Rachmaninoff ... such an incredible drive for excellence. Keep up the good work. Subscribed.
    Greetings from California! Dying to visit Moskva and Sankt Peterburg again.
    Thank you! Большое спасибо!

  • @starseeddeluxe
    @starseeddeluxe 4 месяца назад

    Excellent video! The epoxy wire on the side of the wheel is a genius solution! Although Americans are very afraid of modifying tools, and they get nervous about making their own modifications that require a wildly unique solution.
    A couple notes:
    1.) The inside flange washer must be the same size as the outside flange washer, or at least very close in O.D. diameter, otherwise you risk cracking the grinding wheel.
    2.) Use a block of wood and tap around the periphery very gently to align and center the grinding wheel, while it's only hand tight, before torquing down the arbor nuts.
    3.) A 1/4" impact driver can easily tighten the grinding nuts on the bench grinder threaded arbor, one click or two clicks of your battery powered screw impact driver, or as close to 10 ft lbs of torque (as recommended by Norton official chart for 1/2" diameter thread) or 15 ft lbs for 5/8" diameter shaft. Hold the opposite side shaft, not the grinding wheels, when tightening, to maintain alignment.
    4.) If your paper discs are not in good condition, then make new ones, or throw the whole grinding wheel away.
    6.) There is a balancing system available in the U.S., but it's $95 per side, which apparently removes 100% of the vibration, and it's called "Oneway 2272" grinding wheel alignment system.
    7.) People do say that the easiest way to balance a bench grinder is merely to tighten one side, then dress that side with your diamond dresser, then on the opposite side, mount, and then dismount and re-mount the grinding wheel over and over, turning it in small increments. Test, and repeat, until smooth. This process apparently removes about 90% of the vibration.

    • @grain-diose
      @grain-diose  4 месяца назад

      Thank you for such valuable advice! 👍
      Regarding point 7, my remark. After leveling only with a diamond pencil, vibration will appear when the rotation slows down. The reason is the rotation of the disk around the center of gravity, which does not coincide with the geometric center. The solution for this method is to screw the sharpener to a hard steel table or a hard steel stand screwed into the wall. As a last resort, put the sharpener on a hard stone floor, step on the body with your foot with all your weight and level it with a diamond in this position. 😃
      And I also just thought that perhaps you can print a balancing washer on a 3D printer. You just need to make the outer sides thicker so that the counterweights with centrifugal force do not tear the washer.

  • @intotheblue50
    @intotheblue50 3 месяца назад +1

    I turned an aluminium bush as you recommend and it works perfectly. The hole bored accurately and a very close fit on the spindle and the bush shoulder is turned perfectly true to the the hole. The 31.75mm for the grind wheel is turned very slightly slack to allow the grind wheel to register on the face of the bush. So the register for true running is the shoulder not the inside of the wheel.
    Thank you,

    • @grain-diose
      @grain-diose  3 месяца назад

      In my opinion, plastic is easier for a sharpener and better for a tight fit. In my experience, you can even use a seal with adhesive tape and this will not affect the final result. The main thing is that the inner and outer diameter sit without play. And also that the bearing does not knock. The final part is adjusting the balance and aligning with a diamond pencil.

    • @grain-diose
      @grain-diose  3 месяца назад

      My next video is about faceplates for a sharpening machine - ruclips.net/video/CVYg9FFsLVo/видео.html

  • @jackrichards1863
    @jackrichards1863 2 года назад +9

    Real good information. We all learn from this one and it's well, worth knowing and applying.

  • @jjclarkson3261
    @jjclarkson3261 9 месяцев назад

    Good video. Covers things most home users don't know.

  • @leonhardulbrich32
    @leonhardulbrich32 2 года назад +4

    I had the same problem, I solved it a little differently. Corrected the motor shaft with a lathe and made an adapter flange for the inside and outside. High quality disc used.

    • @grain-diose
      @grain-diose  2 года назад +1

      Usually the motor shaft does not hit. Even this purebred Chinese has no problems with the shaft. Quality disc? No imbalance? This doesn't happen. Have you checked it for balance? It is possible without balancing, the easiest way: if you straightened it with a diamond pencil and the disk rotates perfectly, what do you say when it stops - vibrations appear? If so, then the disk is not balanced.
      By the way, the video uses German discs, pay attention to what is written in German. All discs require imbalance correction, even professional ones. To do this, they are supplied with special washers with three weights on a circular offset groove. Type in the search for YUT "removing the imbalance of the abrasive disc." For example - ruclips.net/video/RJVn-G2nZaQ/видео.html

    • @leonhardulbrich32
      @leonhardulbrich32 2 года назад +1

      @@grain-diose my (china) shaft was very imprecise. With the two flanges (inside and outside) - they interlock - I prevented the tumbling.
      Thanks for the tip about the discs, I'll check
      have a nice day

    • @grain-diose
      @grain-diose  2 года назад +1

      @@leonhardulbrich32 I forgot to say, the vibrations are checked when the machine is just standing on the table (loose). If it is rigidly attached to the wall, slight vibrations may not be noticed.

    • @leonhardulbrich32
      @leonhardulbrich32 2 года назад

      @@grain-diose ok I understand

  • @alfredomarquez9777
    @alfredomarquez9777 2 года назад +9

    WHAT A GREAT VIDEO... Sir, you must have been a GREAT ENGINEER!!! I'm in COMPLETE AGREEMENT. That Makita grinder is available in my country (Mexico), but all of them are unbalanced, misaligned and lack Variable Speed (needed for slower speeds for some materials) THANKS SO MUCH for all the content of this video. As we do not have any grinder sold here that comes with solid washers or flanges, I will wait for your next video on how to solve the problem without a turner or having to use a lathe. Meanwhile, you have my full admiration and professional respect. Cheers from Mexico!

    • @grain-diose
      @grain-diose  2 года назад +4

      Thanks for your feedback and greetings from Moldova.

    • @anelpasic5232
      @anelpasic5232 2 года назад

      That Makita grinder is still leagues better than most cheap-ish grinders out there. I have the exact same one in the video (the square red one, not Einhell) and it's a piece of crap.

  • @1977np
    @1977np 2 года назад +6

    Thanks for a good video. Didn't know these grinders to have such problems and can be further adjusted.

  • @garymucher4082
    @garymucher4082 2 года назад +5

    Always a great idea to have any spinning power tool balanced. I have a buffing grinder as well and with any buffing disk it walks all over the floor with the pedestal stand. I have yet to go through it and balance everything... Thumbs Up!

  • @Kot_Baeyoon
    @Kot_Baeyoon 9 месяцев назад +1

    Everything is fine.
    To simplify the actions, I can recommend Elitech CT 300. It has ready-made, fairly accurate mandrels that fully correspond to the drawing given in the video.
    Not an advertisement.
    And yes, when working metal with a drill at speed, safety glasses are strictly recommended. To avoid! My apologies for the crooked Google translation.

  • @lancestancliffe4885
    @lancestancliffe4885 2 года назад +5

    Has to be the best video I have seen. Great advice and result, thanks for sharing. :-)

  • @PurityVendetta
    @PurityVendetta 2 года назад +5

    This is a great video. I've seen some crazy videos with people drilling holes in wheelss and other really dangerous stuff. I've just bought a really nice Jones and Shipman wheel balancing jig at auction for next to nothing and will use your technique to sort my horrible wheels

    • @grain-diose
      @grain-diose  2 года назад +8

      Yes, I have seen a video with balancing discs for professional large machines, but I don't know if there is one for a home grinder, where to buy it and it's probably expensive. My method can be repeated by everyone at home without buying anything and without spending a lot of time. And I think I forgot to say that epoxy can also be used to glue the balance.

  • @alchemy1
    @alchemy1 2 года назад +2

    Thank you greatly.
    Now I am back on the right path with my old faithful. Thor, the best bench grinder in the world is no longer vibrating. :-)

  • @kiefnthom
    @kiefnthom 2 года назад +8

    This is a wonderful video. I have exactly this problem too. A little tip for balancing: According to gravity and when the grinding wheel is stationary, the heaviest point is always at the bottom. Do not drill deep into the grinding wheel with a few radial holes with a masonry drill. This also helps with balancing.😃

    • @joeylegaspi3515
      @joeylegaspi3515 2 года назад +22

      Adding weight on the light side is better than removing material from the heavy side.
      Removing material might compromise (specially drilling) the integrity of the grinding disc. The disc could explode during use.

    • @ulbuilder
      @ulbuilder 2 года назад +5

      @@joeylegaspi3515 agree, also think an exploding disk would be far more dangerous than a weight flying off.

    • @flyback_driver
      @flyback_driver 2 года назад

      I was wondering how much it could effect the stability of the wheel. Only once I've seen one shatter during use and somehow the dude didn't have a scratch but at least 1/4 of that wheel went flying across the shop. I saw he super glued some solder onto the wheel and that's pretty smart. If it has lead in it that would make a good weight. I was going to try using that epoxy that's used to balance electric motor rotors. It's usually by the commutator grey or black color.

    • @f.d.6667
      @f.d.6667 2 года назад +2

      Never, EVER risk the structural integrity of a grinding disk by "drilling holes" in it! Attacking a disk with a blunt masonry bit is about the worst possible advice in a place where amateurs are around. Any drilling operation with a "crushing" tip geometry is generating stress zones, increasing the risk for funny disk explosions. In case you never sat through a "BG" (Berufsgenossenschaft) training session, here is an update for you: ruclips.net/video/dU5Qf3W30-w/видео.html

    • @bobuk5722
      @bobuk5722 Год назад

      Argh! No, no no! Stupid idea. Deadly even! Never, ever, drill holes in grinding wheel. By a high quality - yup, expensive - one and it will come correctly balanced. Research quality manufacturers. Still check it though, also do the gentle tap ring test for cracks. Any doubts? Destroy the wheel so no one else can use it.

  • @davidrussell8689
    @davidrussell8689 2 года назад +2

    Excellent video . Well done indicating the use of card washers on the flanges .

  • @joelevi9823
    @joelevi9823 2 года назад +10

    Great job.. really learned a lot here

  • @karstenkohlrusch7317
    @karstenkohlrusch7317 10 месяцев назад

    I've been looking for this for a long time, thank you!

  • @saenchai5071
    @saenchai5071 2 года назад +3

    Brilliant technic & perfectly executed, thanks for sharing.

  • @janvisser2223
    @janvisser2223 2 года назад +1

    I love it when a plan comes together!💪😜

  • @josephlai9759
    @josephlai9759 2 года назад +2

    Thank you so much. It is enlightening indeed. Was never aware of the need to correct the imbalances.

    • @grain-diose
      @grain-diose  2 года назад +2

      By the way, I also recently found out, naively believing that abrasive discs are uniform in weight. I checked and immediately decided to share. It's really like a miracle, for so many years I suffered!
      If you don't have Somafix, use epoxy, it's even stronger. They write to me here in the comments that it will fly off and gouge out the eye. They did not see and did not try to tear off Somafix, especially from a rough surface. Yes, it was necessary to show gluing with epoxy, but I was sorry for the time, sorry.

  • @jozsef5846
    @jozsef5846 2 года назад +2

    Good wrench is the half of the work! Thank You very much for share this great experience. There is very helpfull to understand the troubles.👍❤

  • @edwarddupuy5038
    @edwarddupuy5038 2 года назад +12

    Your balancing method is a great way to lose an eye , or a lot worse !!!

    • @grain-diose
      @grain-diose  2 года назад +1

      If you were trying to tear off that glue, you wouldn't say that. If you don't have Somafix use epoxy, what's the problem? You are not gluing a smooth surface, you are gluing on an abrasive disc, nothing can be better, because the epoxy goes through the pores.

  • @ahsaptutkusu
    @ahsaptutkusu 2 года назад +5

    It's a super video. Thanks for your effort. I also do scissors sharpening, I have 4 of the same machine. We have done similar works, but there are also some things I learned from you. Thank you so much.

  • @rikhughes6452
    @rikhughes6452 6 месяцев назад +1

    Spot on realy enjoyed that video subscribed

  • @josepeixoto3384
    @josepeixoto3384 9 месяцев назад +1

    i have an extra one, a small one that i use occasionally for carbide bits; it is not bolted down, and if i don't hold it down, it goes all over the floor; and it scares me, so that i keep turning it off and on to keep the speed low, afraid one disk will explode!!!
    i will check it tomorrow as per your video; i may also try a 80mm washer in which i can remove (drill or grind off) chunks at the perimeter,marking the wheel and said washer, not a perfect way, but may improve some;
    *Thanks for your time, just great*

    • @grain-diose
      @grain-diose  8 месяцев назад

      If you use your sharpener with a protective casing, then there is no need to worry. By the way, if a poorly glued balancer comes off, it will fly down the movement of the circle; the protective casing will not allow it to go higher.

  • @DiYoVa4755
    @DiYoVa4755 2 года назад +5

    Gracias por el excelente video, muy didáctico y práctico. Nos muestra la importancia de tener un disco bien balanceado tanto para realizar un buen afilado de las herramientas, duración de los rodamientos como la seguridad personal pues una piedra desbalanceada nos puede arrebatar la herramienta. Gracias

  • @nick066hu
    @nick066hu Год назад +1

    Thank you for the detailed guide. I bought an expensive brand grinder especially to not have these issues, but that didn't help, unfortunately I have to do all the things shown in the video. but at least i know how to do it.

    • @grain-diose
      @grain-diose  Год назад

      You don't need an angle grinder to align the wheel geometry (not to be confused with unbalance removal), use this diamond tool - aliexpress.com/item/4001285335409.html

    • @nick066hu
      @nick066hu Год назад

      @@grain-diose Thank you, some time ago I already bought that inexpensive diamond tool on eBay for €1-2. My grinder is a Bosch GBG 35-15 it has two 150 mm discs. One disc was OK, but I had to remove the other one, it was so unbalanced, purchased a replacement disc hoping it will solve it, but it makes the same imbalanced run. So I got stick with one operational disc now, with the problem waiting to be resolved. I think it will be washer issues, but will do all your routine. Thanks again.

    • @grain-diose
      @grain-diose  Год назад

      @@nick066hu OK, I thought you were leveling the abrasive wheel with an angle grinder. 😆

    • @johnbesharian9965
      @johnbesharian9965 Год назад

      @@nick066hu, Quick query: Have you tried the "Good" grinding wheel (a.k.a. "Disk") on the other side where you have had two bad disks? It could be shaft run-out or a bad bearing and not the grinding wheel/disk/whatever that is the problem. If you swap sides and your machine runs w/o vibration, then you bought two bad wheels. If the opposite happens, then you need a machinist.

    • @nick066hu
      @nick066hu Год назад

      @@johnbesharian9965 Thank you for the good idea, I'll try that.

  • @АйвазовДмитрий-МосковскийТепло

    Прекрасное видео. From Russia with love.

  • @gyrogearloose1345
    @gyrogearloose1345 Год назад +1

    Thanks Grain for you ideas. Starting with a proper face washer and bushing. Only thing I do not like is the glued balance weight. We got to imagine that it COULD come off! How about drilling some weight out on the heavy side? Will this weaken the grinding wheel? Another thing, not to simply press the dresser against the wheel, but hold it firmly against the tool rest so it's only cutting on the high part of the circumference. Even better - I think - I got a cheap single-point diamond dresser and am making an adjustable holder for this to slide across the edge of the tool rest. See Mr Pete #798 and #799. Overall it is a lengthy job to get a vibration-free grinder starting even with a quality machine. Everyone, please be careful!

    • @grain-diose
      @grain-diose  Год назад +1

      Work with the protective cover and you will save yourself from any injury even if the balancer comes off. Because the balancer will fly down in the direction of rotation of the disk.

  • @mihalykun6715
    @mihalykun6715 2 года назад +1

    Bravó,ezt nagyon jól csináltad!👍🕊

  • @AmazingChinaToday
    @AmazingChinaToday 2 года назад +12

    The metal weight should be a ring around the shaft, so it can't fly into your face. Otherwise, awesome tips!

  • @bobuk5722
    @bobuk5722 Год назад +1

    Hi folks. Fitting grinding wheels in industry is treated as a highly killed operation reserved to specialist trained fitters. There's a good reason for that. Don't mess with cheap grinders, buy a quality product. Yes, it's more expensive. Much nicer to use and much safer. Incidentally, those paper washers are important, do not leave them out. Check the wheel for cracks before fitting, a light tap with a small hammer and it should ring like a bell, if not, break it and dispose of it. Do not stand in the line of fire. Buy a machine with heavy duty guards and tool rests. Do not grind on the side of the wheel. Have a good read up about 'Grinding wheel safety' before ever using one. Wear safety glasses. Misused these things can kill and blind. The surface speed of a hobby grinding wheel can approach 60 mph, around 100 kph.

  • @farrukhhasan7751
    @farrukhhasan7751 2 года назад +1

    This is a very informative video. I have same problem to. Now I can resolve this issue.

  • @bernieshort6311
    @bernieshort6311 2 года назад +1

    I was impressed with this video and have book marked it for future use. You have earnt yourself a like and another subscriber. Good luck with your channel and I look forward to following you to future enlightenment. Thank you kindly.

    • @grain-diose
      @grain-diose  2 года назад

      I'm glad it was helpful to you!

  • @LordKaos666
    @LordKaos666 Год назад +1

    Amazing work Dude, thanks for sharing.

  • @Nozinbonsai
    @Nozinbonsai Год назад +1

    When I finish sorting my socks ,brushing the dogs teeth and washing my goldfish, I will do this right away.

  • @niconine268
    @niconine268 2 года назад +1

    Brilliant video once again. Thankyou

  • @milanporhincak5965
    @milanporhincak5965 8 месяцев назад +1

    PERFEKT ! ! ! THANK YOU. 1 * Slovakia.

  • @TKC_
    @TKC_ Год назад +1

    I machined pressed on flanges and adaptors for the wheels then made machined balancing washers and thought it was all great. Then the wheels wore after some time and became unbalanced. Too much of a hassle the wheels had a lot of life left. I put on a machined cbn and a diamond wheel. The machined washers I had made were still needed to prevent side to side wobble ( I held +-.04mm at the periphery of an 8” wheel) and radially fit the shafts with no perceptible play or skipping while cutting. All in all setup was 10x less than abrasive wheels and they cut faster. I can’t be making stuff to make stuff sometimes. Got to just get on with it.

    • @grain-diose
      @grain-diose  Год назад

      Everything you said is absolutely correct. Of course, when grinding the abrasive wheel, the imbalance occurs again, because the diameter has decreased and the material of the abrasive disc remains uneven. The diamond disc is made of metal, so it does not have such problems, but it also needs precise alignment.

    • @TKC_
      @TKC_ Год назад

      @@grain-diose and all the info you gave is good advice for people setting up vitrified wheels. I wish I had your video 15 years ago when I set mine up the first time Every problem you solve in that video I spent hours figuring out on my own.

    • @grain-diose
      @grain-diose  Год назад

      @@TKC_ You will laugh, but I also struggled with the vibration of the abrasive disk for many years, and as soon as I found out about the need to remove the imbalance, I immediately made a video about it.

  • @executive
    @executive Год назад +1

    the nut on the end of the shaft is also not perfectly square and applies uneven pressure. This can be corrected using spherical washers.

    • @grain-diose
      @grain-diose  Год назад

      In such close proximity to the center, such influence is minimal. But checking the balance of the motor rotor is a good thing.

    • @executive
      @executive Год назад +1

      @@grain-diose the influence is significant.. Rigid metal wheels (like CBN) will not rotate co-axially , causing bounce and making it difficult to use, especially on the sides of the wheel.

    • @grain-diose
      @grain-diose  Год назад

      @@executive Sorry, I misunderstood you. Yes, you are right, the clamping plane of the nut is not ideal. That is why the clamp is made through a cardboard gasket of about 0.5 mm, so for an abrasive disc the plane of the faceplate is the basis, which is desirable to be milled directly on the shaft. Watch my other video about it - ruclips.net/video/CVYg9FFsLVo/видео.html

  • @dantemarasca
    @dantemarasca 11 месяцев назад +1

    Espectacular video muchas gracias y saludos desde Argentina

  • @collinrene7428
    @collinrene7428 Год назад +1

    très bien expliqué et de plus ont n'en apprend tous les jours

  • @ingwarrce9900
    @ingwarrce9900 7 месяцев назад +1

    Vyzera to jednoducho, ale najst spravne množstvo proti zavažia nieje tak jednoduche. Mne to trvalo tridsat minut.

    • @grain-diose
      @grain-diose  7 месяцев назад

      It's best to use thin solder for this, that's what I used.

  • @mikecagle984
    @mikecagle984 Год назад +1

    Not listening to a computerized "voice" when this just as easily be narrated by a real human

  • @rafaellondono1882
    @rafaellondono1882 Год назад +1

    Maestro, excelentes analisis de mecánica....sus enseñanzas muy valiosas...gracias.... abundancia, prosperidad, salud, alegría, armonía...para ud y su familia...hare krishna

  • @lilmatt1914
    @lilmatt1914 2 года назад +1

    damn this man seems to know his stuff

  • @lavina58
    @lavina58 Год назад +1

    Awesome video, thanks 👍🙌👌😊

  • @a.fercmann
    @a.fercmann Год назад +1

    по мере изнашивания диска его надо опять балансировать? отковырять грузик и приклеить новый???

  • @robohippy
    @robohippy 8 месяцев назад +1

    The plastic bushings for the grinder wheels are junk. Metal ones are available, and are far more accurate. I do dress the sides of the wheels to true them up as well. Any stamped washer is also junk, but finding machined washers is not easy. You can also buy CBN wheels which come spin and bubble balanced, and last far more longer than standard wheels. They are not made for grinding carbon steels though, only hardened metals.

  • @andrasb.6162
    @andrasb.6162 2 года назад +1

    Nice work ,sir !

  • @thiggy1249
    @thiggy1249 2 года назад +1

    Very interesting and informative. I am surprised that there is no mention of CBN wheels.

    • @grain-diose
      @grain-diose  2 года назад

      Thanks, the goal was to talk about balancing the disk and the faceplate. By the way, there is already a video about two ways to make a faceplate.

  • @Feanor2
    @Feanor2 2 года назад +4

    Зачем 2 раза править диск, сказал этот парень и обточил его 2 раза…
    А если серьезно, то я думаю, начинать надо не с замены штампованной шайбы (хотя это тоже важно и нужно), а с проверки люфта в китайских подшипниках и ровности самого вала мотора. Бессмысленно точить новую упорную шайбу, если вал кривой, а шарики в подшипниках квадратные.
    Но вообще все остальное по делу. Лайк заслужил.
    Одно маленькое замечание для тех, кто будет повторять: если уж вы будете заказывать у токаря новые прижимные шайбы, то имеет смысл заказать и вторую большую шайбу с канавкой для грузиков, чтобы можно было балансировать камни прямо на устройстве.
    Если пойти в своем безумии еще дальше, то самым идеальным вариантом было бы изготовление конусной насадки на вал двигателя, заказ новых камней с посадочным отверстием 50 или 76 мм и изготовление прижимных шайб с очень плотной посадкой на камень, которые бы оставались на камне до момента его смерти. Иначе получится, что при каждой переустановке камня его заново надо центрировать, балансировать и подгонять.
    Посмотрите на устройство больших заточных и шлифовальных станков - там это реализовано с завода.

    • @grain-diose
      @grain-diose  2 года назад +2

      Подшипники это само собой, это по умолчанию, поэтому я и показал сперва биения вала. Это обсуживание и ремонт, видео не про это. Кстати, у чистокровного китайца Worcraft подшипники не менял, а издевался я над ним много, в частности много токарил на нем, т.е. сильные боковые нагрузки. А вот в немецком Einhell вскоре пришлось, хотя использовался в штатном режиме и совсем мало.
      Насчет 2 раза править диск, видимо это проблемы перевода. Я имел ввиду лучше 2 раза выправить геометрию алмазом, чем 2 раза корректировать дисбаланс. И если быть до конца честным, то по мере стачивания диска небольшой дисбаланс снова появится - чисто по законам физики. Поэтому можно грузик чуть меньше ставить или по мере стачиваният чуть снять.
      А вариант цельной шайбы со втулкой (что в следующем видео) показал еще лучший результат даже на "китайце". Разумеется, если он и на вал плотно садится, и диск на него.

    • @grain-diose
      @grain-diose  2 года назад +2

      Пока вам ответил, вы дополнили свой коммент. :) Спасибо за такие развернутые советы, но боюсь, те, кто шарит в инструменталке, и сами всё понимают и знают, а для простого любителя здесь возникает еще больше вопросов.
      Про подшипники сказано на 0:45. Да и на слух уже будет понятно - стук будет и при проверке рукой в выключенном будет люфтить. Но это уже как сказал, про обслуживание.

    • @Feanor2
      @Feanor2 2 года назад +1

      @@grain-diose остается изначально кривой вал на моторе. Увы, но явление довольно частое.
      А вы из России? Текст ответа уж больно отличается от машинного перевода.

    • @grain-diose
      @grain-diose  2 года назад +2

      @@Feanor2 Мной три точила было куплено: два Einhell и один китаец. Ни у одного проблем с валом не было. Я из Молдовы, русскоязычный.

    • @Feanor2
      @Feanor2 2 года назад +2

      @@grain-diose значит повезло. На чипмейкере русскоязычном то и дело всплывают темы про кривые китайские точила и методы их приведения в более-менее потребный вид.

  • @howtousemetallathemachines6478
    @howtousemetallathemachines6478 Год назад +1

    Excellent, thank you .👍

  • @restorerestoration4705
    @restorerestoration4705 2 года назад +1

    Very professional work

  • @MrRossi1805
    @MrRossi1805 2 года назад +1

    Great explanation!

  • @EvoKeremidarov
    @EvoKeremidarov 2 года назад

    thank you. really nice video and some very helpful information. i was also a bit worried about the glue coming off but there are other methods like a balancing washer that do the same job so no big worries.

    • @grain-diose
      @grain-diose  2 года назад

      The best replacement for CA Somafix glue is epoxy.

  • @flyback_driver
    @flyback_driver 2 года назад +1

    Man thank you for making this! Every abrasive wheel I buy is so out of balance I'm terrified the wheel might come off. Nearly every video of "how to balance a grinder wheel" is some idiot rambling and trying to figure it out. After nearly ten minutes most say throw it in the trash and buy a new one. Bench grinders not exactly a precision tool no one makes disks with options to add different screws for weights. Anyways thanks my guy!

    • @grain-diose
      @grain-diose  2 года назад

      I also advise you to watch a video about creating a faceplate, this will further reduce vibrations - ruclips.net/video/CVYg9FFsLVo/видео.html

  • @francoismouton8338
    @francoismouton8338 Год назад

    merci pour tout ces précieux conseils.

  • @ОлегС-с5х
    @ОлегС-с5х 2 года назад +2

    Молодец! Всё подробно рассказано.

    • @RobotN001
      @RobotN001 2 года назад +3

      но много излишней работы, которая не влияет на результат.

    • @cassam2845
      @cassam2845 2 года назад +1

      Колхоз. Больше от качества самого точила зависит.

  • @executive
    @executive Год назад +1

    My 1HP Rikon grinder came with a milled cast iron faceplate

  • @Jethro.Maloku-le.Rey.Kalsitran
    @Jethro.Maloku-le.Rey.Kalsitran 2 года назад +3

    very smart and optionally, you will save your bearings too 🤓👍

  • @العندليب-ق1ق
    @العندليب-ق1ق Год назад +1

    عملك راقي👍👍👏👏👏👏

  • @jankosina1127
    @jankosina1127 2 года назад +3

    bardzo ciekawy film, dziękuję!

  • @DraganIlich-r1s
    @DraganIlich-r1s 7 месяцев назад +1

    Thank you Sir.🎉

  • @antitheist9976
    @antitheist9976 2 года назад +1

    Great instruction, thanks 🙂

  • @EscuaDronVideo
    @EscuaDronVideo 2 года назад +1

    Very, very good. TNX

  • @RixtronixLAB
    @RixtronixLAB 2 года назад +1

    Nice video, thanks for sharing :)

  • @JoaKazing
    @JoaKazing 2 года назад +1

    Really helpful 👍

  • @michaelguzzi1
    @michaelguzzi1 2 года назад +2

    Great work! May I ask what CAD software you used?

    • @grain-diose
      @grain-diose  2 года назад +2

      Thank you! КОМПАС-3D - kompas.ru/

  • @ParsMaker
    @ParsMaker 2 года назад +1

    nice work , thanks for shear

  • @stanislaspuskarczyk6887
    @stanislaspuskarczyk6887 2 года назад +1

    👌👍👍👍 Superbement bien expliqué

  • @anugrahtehnik4566
    @anugrahtehnik4566 Год назад +1

    Ilmu sangat luar biasa saya akan mencobanya

  • @361vr9
    @361vr9 Год назад +1

    This was awesome thanks

  • @jameslovering9158
    @jameslovering9158 2 года назад

    Interesting I checked my recently bough grinder it has a proper base plate but the disc is new and not balanced. I never knew to check that when purchasing just went to 1 200mm machine from reputable machine shop worked out great.

  • @lassehovde
    @lassehovde 11 месяцев назад

    Back in the days the grinding wheelfactory balanced the weels with ''blymønje'' or minio de plumbo'' or lead paint''

  • @user-js1sz3vu2v
    @user-js1sz3vu2v 2 года назад +1

    Very very good 🙂🙂👍👍❤️❤️

  • @くにtako
    @くにtako Месяц назад +1

    If we can standardize balancing items such as adapters and obtain patents, we can make more money. The global standard will rise and the quality of the products will improve.

    • @grain-diose
      @grain-diose  Месяц назад +1

      For professional sharpening machines there are special balancing washers with three balancing weights. There are many videos on YT about this.

  • @jurgenalderan3032
    @jurgenalderan3032 Год назад +1

    Geil !!!thanks allot for that vid 😊

  • @eme444
    @eme444 10 месяцев назад

    Impresive !

  • @byOldHand
    @byOldHand 2 года назад +1

    Such a beautiful video ⭐️ Thank you very much for all this important information. 🪚🛠👍🏻

  • @jthadcast
    @jthadcast Год назад +1

    is it better to bolt grinder to the table or leave free standing with rubber feet?

    • @grain-diose
      @grain-diose  Год назад +1

      As you can see, my set up grinder just sits on the table and that's how I use it. Yes, if I had a permanent workshop, maybe after setting it up I would fix it on the table.
      But if you firmly mount the grinder on a table or wall just to reduce vibration, then this will definitely accelerate the wear of the bearings.
      If the grinder is set up perfectly and doesn't vibrate even after braking (check it out!), then you can do as you please, I think it doesn't matter.

    • @jthadcast
      @jthadcast Год назад +1

      @@grain-diose thanks for the answer, i plan on balancing first as i prefer not to drill bolt holes in bench.

  • @대전누수
    @대전누수 2 года назад +1

    Good job 👏

  • @dgin09
    @dgin09 2 года назад

    0:44 штатив из постапокалипсиса...
    из фанеры или текстолита? Барашки из крышек от пэт-бутылок?

    • @grain-diose
      @grain-diose  2 года назад

      Это временный, пока не обзавелся жестким. Впрочем и этот достаточно жесткий. Фанера 10мм Х2, стеклотекстолит 3 мм тоже в два слоя. Барашки из эпоксидки - ruclips.net/video/DIXbL_DKO-8/видео.html

  • @CatNolara
    @CatNolara 9 месяцев назад

    I don't know how to feel about gluing a piece of solder to the wheel. Usually when balancing a wheel like this you get an old drill and drill some material out of the side that's too heavy

    • @grain-diose
      @grain-diose  9 месяцев назад

      Drilling a disk is a bad idea; this can cause microcracks, with understandable consequences.

  • @thanhnguyentuan7371
    @thanhnguyentuan7371 2 года назад +1

    Thank you for video.

  • @policebox1092
    @policebox1092 2 года назад +2

    Thanks for sharing

  • @herreriagarciaymas777
    @herreriagarciaymas777 Год назад

    Buen video saludos desde México.

  • @ernonagy7281
    @ernonagy7281 Год назад

    Ha majd a fordító (program) tud különbséget tenni a daráló és a köszörű között, lenne mit mesélni. Most csak annyit, hogy a felragasztott egyensúlyozó nem túl biztonságos és a korong kopásával lehet, hogy a pozíciója csak ront a helyzeten. Az 1mm körüli váll a tengelyen soha nem lesz biztos támasztó bázis a tengely és a belső szorító perem között. Ha a köszörűkorongon fennmaradt a gyári papírkorong, fölösleges másikat ráhelyezni.

  • @lordfyita2096
    @lordfyita2096 2 года назад

    I never felt so many regrets as after i bought this grinder, it's soooo weak i can prevent it from running with 2 fingers.

  • @ajithsilva5438
    @ajithsilva5438 2 года назад +1

    Great video, thanks..

  • @thedolphin5428
    @thedolphin5428 10 месяцев назад

    7:48 But the label is crooked! That will be create a wobble vibration. 😊