Making an Electric Chainsaw Mill - Part 1 - Making The Chainsaw

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  • เผยแพร่เมื่อ 13 ก.ค. 2020
  • The motor is a single phase 5hp motor.
    The bar is a 36 inch with .404 Chain.
    The sprocket and drum is off a Stihl MS880.

ความคิดเห็น • 235

  • @complexity5545
    @complexity5545 ปีที่แล้ว +2

    This guy is not messing around. I was looking for circular saw guides and I ended up here. A whole apparatus for guiding a chainsaw. Ha. Good stuff.

  • @jakekosky
    @jakekosky 2 ปีที่แล้ว +4

    Hard to beat that feeling when you test a prototype for the first time

  • @hthring
    @hthring 3 ปีที่แล้ว +9

    You my friend are a genius, particularly they way you turned the wood drum like a lathe !

  • @Uswesi1527
    @Uswesi1527 6 หลายเดือนก่อน +1

    Undoubtedly, ingenious design, accurately and professionally made, above all, efficient and very useful tool . Thanks

  • @StanlocoInc
    @StanlocoInc 3 ปีที่แล้ว +13

    Geez! So far that looks incredible and I can’t wait to jump to parts two and three.

  • @hugovaughan9826
    @hugovaughan9826 3 ปีที่แล้ว +8

    You are a genius, so simple and do-able thanks for sharing

  • @lysleanderson9137
    @lysleanderson9137 3 ปีที่แล้ว +11

    There is a Nobel Prize for do-it-yourselfery on it's way to you. Congratulations. Well done

    • @sunilsenevirathne4245
      @sunilsenevirathne4245 3 ปีที่แล้ว

      Appreciate your creative idea I do wish you shuld get the noble prize award thanks

  • @D-train69
    @D-train69 2 ปีที่แล้ว +2

    Damn you need an award for this one 🔥🏆🥇🏆🥇🔥🧨🧨🧨👍👍👍

  • @antoninperbosc1532
    @antoninperbosc1532 3 ปีที่แล้ว +8

    Perfect i was thinking about doing something with a 42" bar on my escavator in order to trim my lelands trees thanks for your sharing !

  • @sickofliberals9403
    @sickofliberals9403 3 ปีที่แล้ว +4

    I love what you did here bro👍👍👍

  • @garywalker447
    @garywalker447 3 ปีที่แล้ว +5

    A friend of mine and I built a Trebuchet and we squared the timbers with his Alaskan Mill. He had a chainsaw that was old and reliable but the muffler was blown out. It got the job done but my ear defenders had a lot of work to do. This thing will be a lot quieter!!

  • @den0matic
    @den0matic ปีที่แล้ว +1

    Mitch, this is outstanding! Good job

  • @jerrysponagle3881
    @jerrysponagle3881 2 ปีที่แล้ว +1

    You are talented. Good job.

  • @derulle6801
    @derulle6801 3 ปีที่แล้ว +3

    Great Job!

  • @user-gk3we3zi9s
    @user-gk3we3zi9s 2 ปีที่แล้ว +2

    Привет! Спасибо большое за хорошую работу!👍🌲

  • @tunintunin3417
    @tunintunin3417 3 ปีที่แล้ว +7

    Great idea and work, kudos, inspired me to finish what I started a few years back. The welds would be stronger and batter if you had a nozzle on that mig gun (unless you’re using flux core wire).

  • @user-ke1jc5ty3z
    @user-ke1jc5ty3z 3 ปีที่แล้ว +3

    Классная идея 👍👍👍

  • @terryclinard5930
    @terryclinard5930 3 ปีที่แล้ว +5

    Now that folks , is some great Design , Engineering and Fabrication all wrapped up into one package. Great Job !!

  • @achilles3185
    @achilles3185 2 ปีที่แล้ว +1

    Very good idea. Like.

  • @jeffzabriskie9689
    @jeffzabriskie9689 2 ปีที่แล้ว

    Oh damn my mans a genius

  • @decioalves7482
    @decioalves7482 3 ปีที่แล้ว +4

    Bom trabalho parabens.
    Sou fã desta arte.
    Prático de vez em quando também.

  • @synapticaxon9303
    @synapticaxon9303 3 ปีที่แล้ว +2

    "...and that's how I got one foot shorter!" :)
    I like this a lot, thanks for sharing it.

  • @mitchellkasdin1899
    @mitchellkasdin1899 2 ปีที่แล้ว +1

    Good job 👍

  • @ncep4095
    @ncep4095 3 ปีที่แล้ว +1

    Great Job

  • @user-uc6kc5fk5o
    @user-uc6kc5fk5o 2 ปีที่แล้ว

    Молодец парень! Супер.

  • @MenardRebelRiders
    @MenardRebelRiders 3 ปีที่แล้ว +2

    Awesome 👌

  • @lassepistol908
    @lassepistol908 2 ปีที่แล้ว +2

    Super, m8.. This IS just whar i needed to see with my own eyes =) Thank you for doing this vid on your truly amazing sawmill!

  • @treeman8881
    @treeman8881 3 ปีที่แล้ว +1

    Pretty darn good idea you have there

  • @kamalhossain2702
    @kamalhossain2702 2 ปีที่แล้ว +1

    nice job

  • @tomaszpiotrowski592
    @tomaszpiotrowski592 2 ปีที่แล้ว +2

    Dzięki za info 💪😁

  • @chainsawmilling
    @chainsawmilling 2 ปีที่แล้ว +2

    Unbelievable. This is awesome

  • @reg.treg.t
    @reg.treg.t 3 ปีที่แล้ว +3

    The saw mill has arrived

  • @arifsuteja1060
    @arifsuteja1060 2 ปีที่แล้ว +1

    Wiiih keren , cerdas.

  • @christooosthuizen2000
    @christooosthuizen2000 3 ปีที่แล้ว +5

    Thanks, already safe all you're video's on your build. Do you have drawing of the structure, from South Africa.

  • @AlexeiTetenov
    @AlexeiTetenov 3 ปีที่แล้ว +2

    Nice!

  • @DungeonsAndDragsters
    @DungeonsAndDragsters 2 ปีที่แล้ว +1

    Brilliant.

  • @lovethewordofgodjn321
    @lovethewordofgodjn321 2 ปีที่แล้ว

    impressive 👍

  • @chompers11
    @chompers11 2 ปีที่แล้ว

    LOL when he said making the chainsaw he really meant it eh?? amazing video

  • @jthadcast
    @jthadcast 3 ปีที่แล้ว +3

    ok, i want one ... and a truck and trailer to haul logs and land to stack wood

  • @loriszeni5732
    @loriszeni5732 3 ปีที่แล้ว +5

    Semplice, pratico, forse un tantino troppo leggero ma tutto si può migliorare un bel 👍

    • @davidwillard7334
      @davidwillard7334 ปีที่แล้ว

      AND !! PUT !! STRAIGHT !! INTO !! THE !! METAL !! SHREADDER !! FOR !! PEACE !! OF !! MIND !! TOO !!

  • @richarddrempel8912
    @richarddrempel8912 3 หลายเดือนก่อน +1

    I just came across your electric chainsaw mill build. Awesome job, thanks for sharing with all of us. I have a procut chainsaw mill that I built a few years ago and I always wondered if I could build an electric motor for it instead of the chainsaw. Now I know that it can be done. Thanks man. If you ever see this post I’d like to know what size motor you used.

    • @mtarrant3
      @mtarrant3  3 หลายเดือนก่อน

      3hp

  • @chriswoods3188
    @chriswoods3188 3 ปีที่แล้ว +4

    That's pretty impressive. Now I have to see how it all works out.

  • @mattcasdorph
    @mattcasdorph หลายเดือนก่อน

    I actually thought about doing the same thing but with a chainsaw mill attachment and a 3/4 HP electric motor. Cause these larger saws are pretty high but you can get a decent length bar for under a hundred.

  • @eprofessio
    @eprofessio 2 ปีที่แล้ว +1

    Genius

  • @Warwick_zlyuka
    @Warwick_zlyuka 3 ปีที่แล้ว +11

    Это великолепно, а то всё пильную ленту да ленту ставят. Очень понравилась твоя идея.

    • @Leon-vs1bx
      @Leon-vs1bx 3 ปีที่แล้ว +2

      Але це ж НЕ економваріант !!Багато в тирсу іде !!!!

    • @Warwick_zlyuka
      @Warwick_zlyuka 3 ปีที่แล้ว +1

      @@Leon-vs1bx но зато пильная шина очень доступна, а ленту тяжелей достать.

    • @daurenbekbaimusa2753
      @daurenbekbaimusa2753 3 ปีที่แล้ว +2

      Мужик с умом, полотно жёстче,да и на цепи зуб крупней и скобами.
      Не то что лента чуток про.....бал ,всёлента куда хочет туда и режет.
      А тут в нагляк пихать можно и сырой распустит.
      На счёт экономичности и мобильности можно китайский Лифан на 5,5квт.
      Лайк!

  • @snteevveetns
    @snteevveetns 11 หลายเดือนก่อน

    Love it!

  • @CuriousEarthMan
    @CuriousEarthMan 2 ปีที่แล้ว +11

    great build so far, thank you! How did you calculate feet per minute for the chain, or motor RPMs required to know the chain was moving fast enough? did you have data from other electric or gas chainsaws? also, how is that motor breakered at the panel? double 20 amp breakers, or higher? thank you very much!

  • @abelpenteado2728
    @abelpenteado2728 3 ปีที่แล้ว +1

    Very good

  • @alanm3438
    @alanm3438 2 ปีที่แล้ว +1

    I love it!!!!!

  • @akryeguy
    @akryeguy 3 ปีที่แล้ว +4

    Pretty clever.
    Been wanting to engineer a DC powered sawmill with a motor somewhere between a 37 hp forklift and a 5 hp golf cart. Logosol does *sell* a three-phase motor ready to go that goes 8 kilowatts, or 20 hp. The next step in invention I would guess is making a fold-out photovoltaic trailer housing for such a mill.

    • @lonewolftech
      @lonewolftech ปีที่แล้ว +1

      Do you realize how many solar panels would be needed for that setup?

    • @akryeguy
      @akryeguy ปีที่แล้ว

      @@lonewolftech
      Yes. Do you understand how batteries already power 10,000 lb forklifts...my alternative motor source compared to a golf cart? I can charge a bank of them all day before going to the transportable sawmill with the battery, or batteries...interchangably.

    • @davidwillard7334
      @davidwillard7334 ปีที่แล้ว

      @@akryeguy AND !! POLLUTION !! TO ! MATCH ! IT !!

  • @marinjules
    @marinjules 3 ปีที่แล้ว +1

    NICE Thanks

  • @sledrevy75
    @sledrevy75 2 ปีที่แล้ว +2

    You think this would work with a 72 inch bar?

  • @troopy001
    @troopy001 2 ปีที่แล้ว +1

    Hmmmm. I know a bloke who's got something like that. Similar colour scheme. Nice work. I never got around to making the slabber attachment on mine.

    • @davidwillard7334
      @davidwillard7334 ปีที่แล้ว

      SOUNDS !! QUITE !! STUFFED !! ALREADY !!

  • @JHenrySlentz
    @JHenrySlentz 2 ปีที่แล้ว +4

    Great concept, imo isolate failure points such as using wood for motor spindles..take the wood you created and at least sand cast out aluminum or steel with the wooden ones you created. I do it often with plastic parts from tóols I purchase. A few hours could save a person thousands. Anyways, kudos! Welll done.

    • @scottrayhons2537
      @scottrayhons2537 2 ปีที่แล้ว +1

      Good idea Henry! Thank you for that one.

    • @davidwillard7334
      @davidwillard7334 ปีที่แล้ว

      LASTS ! ABOUT ! THE ! SAME !.TOO !!

  • @whirled_peas
    @whirled_peas 2 ปีที่แล้ว +3

    Looking at going on a similar journey myself, thank you so much for showing us the details.
    One point! I don’t think your machine has high enough RPM! The logosol electric mill (e5) uses a 2800rpm motor with a large 24t sprocket. Just done the maths and that leads to 21m/s speed which is about right for a chainsaw.
    Assuming you're using a 3/8" pitch chain and 2800rpm motor with 7t sprocket, the chain speed is just 6.2m/s.

  • @abc-ed1nr
    @abc-ed1nr 3 ปีที่แล้ว +2

    This is so awesome. What size hardwood log can this handle before it really bogs down

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว +1

      it can cut the bar length, about 60cm in hard wood but it is slower.

    • @davidwillard7334
      @davidwillard7334 ปีที่แล้ว

      About ! MATCHSTICK !.Size !

  • @StephenMarks-yn1js
    @StephenMarks-yn1js 4 หลายเดือนก่อน

    Nice

  • @thequietguy5979
    @thequietguy5979 2 ปีที่แล้ว +3

    How many RPMs is the motor running at

  • @user-yr3wm8ss7j
    @user-yr3wm8ss7j 3 ปีที่แล้ว +1

    Wow 👍

  • @alexmichel293
    @alexmichel293 3 ปีที่แล้ว +4

    how heavy is the motor? any issue with it moving during cutting?

    • @davidwillard7334
      @davidwillard7334 ปีที่แล้ว

      CUTS !! SO !! WONKY !! ALONG ! WITH !! M.B
      O !! TOO !!

  • @user-ic6ht2ox8w
    @user-ic6ht2ox8w 3 ปีที่แล้ว +5

    Спасибо.........Все понятно и доступно а то показывают как пилит

  • @unerbittlich
    @unerbittlich 2 ปีที่แล้ว

    How many rotations a minute does the motor have?
    I can only get ones with 1400. Is that any good?
    Normal chainsaws seem to have more.

  • @nicholasgeorge7825
    @nicholasgeorge7825 ปีที่แล้ว

    I know this is old, but have you found that a clutch isn't necessary or is the drum also a clutch?

  • @paulosantos1045
    @paulosantos1045 ปีที่แล้ว

    Eu gostei vou copiar a ideia parabens

  • @arthursoctomah9175
    @arthursoctomah9175 3 ปีที่แล้ว +1

    no doubt man

  • @user-qc3pf5kk1u
    @user-qc3pf5kk1u 2 ปีที่แล้ว +1

    3,49 ТЕХНИКА БЕЗОПАСНОСТИ!!! Можно пальцев лишится!

  • @WillieStubbs
    @WillieStubbs 3 ปีที่แล้ว +2

    Wow, don't have to listen to a gas powered chainsaw, sweeeeet!!!

    • @em4703
      @em4703 2 ปีที่แล้ว +1

      Don't worry this isn't any less loud. At least you don't need a gas mask though.

  • @brieftodo
    @brieftodo 3 ปีที่แล้ว +2

    What brand and model welder are you using? Cheers!

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว

      Its a Unimig Vipper mma 182, a mid range welder here in Aus. I'm running using flux core wire (so no gas).

  • @kenbird9017
    @kenbird9017 2 ปีที่แล้ว

    Awesome. Do you have the drawing, please.

  • @KS-kh6vp
    @KS-kh6vp 3 ปีที่แล้ว +4

    hi what is the engine technical data you are using. ?

    • @kevinwinlass6864
      @kevinwinlass6864 3 ปีที่แล้ว +1

      I think I saw a 240 volt sign on the motor and it was 5 horsepower.

  • @davidwillard7334
    @davidwillard7334 ปีที่แล้ว

    LOOKS !! LIKE !! A ! SEIZURE !! HERE !! AND !! UNSAFE !! TOO !!

  • @p7n7c7h
    @p7n7c7h 2 ปีที่แล้ว

    how thick is the cut ?

  • @ericagyeman9434
    @ericagyeman9434 3 ปีที่แล้ว +4

    Great work, I have plans to build one to work on fire wood and recovery of rejected logs at a sawmill, the logs are given to me for free in West Africa Ghana for 3 years every 3 months 6 x 40ft containers. "SHEARING IS CARING" Thanks for shearing,

    • @davidwillard7334
      @davidwillard7334 ปีที่แล้ว

      SHARING !! IS !! REALLY !! STEALING !! AND !! BEING !! A !! COMMON !!! THIEF !!!

  • @AGROlifeTV
    @AGROlifeTV 3 ปีที่แล้ว +1

    👍👍👍

  • @alexanderreuss-ym1yx
    @alexanderreuss-ym1yx ปีที่แล้ว +1

    Hi
    First, thank you so much for sharing this inspiring build with us.
    I'm planning to build something similar this summer and hope you may answer a few questions:
    What rpm is your motor running at and do you wish it was on a pulley to increase the rpm on the sprocket?

    • @mtarrant3
      @mtarrant3  ปีที่แล้ว +1

      the motor is 2800rpm, this makes for ok chain speed with the chainsaw sprocket that i used. It would be better if the sprocket was maybe 2 to 4 times the size it is.

    • @alexanderreuss-ym1yx
      @alexanderreuss-ym1yx ปีที่แล้ว

      @@mtarrant3 thanks for the info. I'm thinking of using a 3500 5hp motor and mounting it on a horisonttally swinging steel plate with a bolt to tighten against the frame, so I can tension the chain without having to built a complex tightening mechanism.

    • @simonlaverdure9449
      @simonlaverdure9449 11 หลายเดือนก่อน

      @@alexanderreuss-ym1yx Wow, that's awesome. But I'm not sure to understand how you would get the tension on the chain. Could you explain this in more details. I'm looking to get the same result! Thanks

    • @alexanderreuss-ym1yx
      @alexanderreuss-ym1yx 11 หลายเดือนก่อน

      @@simonlaverdure9449 I changed plans a little and now intent to mount the plate attached to the motor onto a steel plate. As the backing plate has slots where it bolts on that should allow me to tension the chain by moving the motor.

  • @johanalejandromendozaverde7542
    @johanalejandromendozaverde7542 3 ปีที่แล้ว +2

    Good but what about chain lubrication??

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว

      Check out the next video

  • @philippemotard7058
    @philippemotard7058 3 ปีที่แล้ว

    a quelle vitesse tourne le moteur

  • @orhankskn
    @orhankskn 2 ปีที่แล้ว

    How many revolutions is the engine

  • @scor440
    @scor440 2 ปีที่แล้ว

    Is it a water pump or hydraulic motor?

  • @Batterycr
    @Batterycr 2 ปีที่แล้ว

    the motor is on high or low

  • @MotorSwapDan
    @MotorSwapDan 3 ปีที่แล้ว +1

    Mate what camera was used for this? Loving the video!

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว

      A Canon 70D

    • @MotorSwapDan
      @MotorSwapDan 3 ปีที่แล้ว

      @@mtarrant3 Thank you!

  • @semkooijman996
    @semkooijman996 2 ปีที่แล้ว

    How do it get oil?

  • @Mario-dw2mt
    @Mario-dw2mt 3 ปีที่แล้ว +2

    Maybe You have some plans and You could send ?

  • @TheInfoworks
    @TheInfoworks 2 ปีที่แล้ว +3

    Hi, interesting project, like the low tech solutions, just wondering about the chain speed, obviously the motor speed is slower than a chainsaw engine, is this a problem? cheers

    • @mtarrant3
      @mtarrant3  2 ปีที่แล้ว

      yep its slower than a chainsaw but it has a lot more torque, i think it works well.

    • @TheInfoworks
      @TheInfoworks 2 ปีที่แล้ว

      @@mtarrant3 Thanks for that, I'm thinking a 5Hp motor at 240v will pull about 4 amps per Hp so 20amps is quite some current. No wonder it has some grunt, cheers

    • @davidwillard7334
      @davidwillard7334 ปีที่แล้ว

      It's a B.O JOB !! AT !! BEST !!!

  • @1dt1971
    @1dt1971 ปีที่แล้ว

    Do you think an old washing machine motor would work ?

    • @mtarrant3
      @mtarrant3  ปีที่แล้ว

      Yep but with a smaller bar

  • @edwarnock4534
    @edwarnock4534 3 ปีที่แล้ว +7

    One consideration not addressed by you video is that chainsaws require lubrication of the bar and chain or they overheat causing the chain and bar undue wear. I have used chainsaws most my life and if you skip filling the bar oiler you end up with a chain and bar that will not cut straight even if carefully and accurately sharpened. In addition your chain will not hold an edge as the heat will soften the heat treated saw teeth.
    I would suggest an oil tank, and line to feed into the bar oiler hole with a cylinder and plunger assembly of some sort that you can use to like the bar and chain.

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว +2

      G'day Ed, please see the next videos in the series

    • @davidwillard7334
      @davidwillard7334 ปีที่แล้ว

      ABOUT !.AS !. GOOD ! AS ! MISTER ! HADD !! JADDDS !! HANDS !! FROM !! INDIA ! MAKES !!

  • @paulmeln2859
    @paulmeln2859 3 ปีที่แล้ว

    whats the model number of that motor

  • @yarpen86
    @yarpen86 3 ปีที่แล้ว +1

    How do you lubricate chain?

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว

      See part 2 & 3

  • @jerrysponagle3881
    @jerrysponagle3881 2 ปีที่แล้ว +1

    Would a gas powered large cc chain saw mounted to your frame. For off grid living.

    • @mtarrant3
      @mtarrant3  2 ปีที่แล้ว

      Yep an normal chainsaw would also work but an Alaskan mill setup is simpler option.

  • @andrewpatterson5325
    @andrewpatterson5325 3 ปีที่แล้ว +5

    Nice work. I’m interested in how you chose your motor. Is 5hp the right amount of power for Aussie hardwoods. Look forward to more videos.

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว +1

      Hi Andrew. I think 5hp is the biggest single phase motor you can get? A bigger motor like a 10-15hp would be better but these seem to be 3 phase. 3 phase motors can be run on single phase with the use of a VFD but they draw a lot of amps. To run a large 3 phase motor I would probably have to put in a new 30 amp (maybe more) circuit on the hose from the main box, this is a possibility in the future.

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว

      I wish i has 3 phase power

    • @beetooex
      @beetooex 3 ปีที่แล้ว

      @@mtarrant3 Could you tell me how many amps the motor draws and it's rpm please? I'm struggling to find a motor that can run on a uk domestic 13amp/230v socket with even half the speed of a petrol saw. Even with a large sprocket the chain speed wouldn't be ideal. Great video mate. Thanks.

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว +4

      The motor is 12A and the RPM is 2,800. I run this off of a normal 10A socket no problems.

    • @beetooex
      @beetooex 3 ปีที่แล้ว +2

      @@mtarrant3 Wow. That's very low rpm compared to petrol saws. I can see from your videos it works fine though and I don't need to worry! Thanks for the insight.

  • @edwardk1713
    @edwardk1713 3 ปีที่แล้ว +3

    I had to run out to the garage and get my welding helmet so I could see what he was doing there...

  • @stevengrilliot5993
    @stevengrilliot5993 3 ปีที่แล้ว

    What's wrong with the torch end

  • @acameronfarms
    @acameronfarms 3 ปีที่แล้ว +1

    Does that motor run fast enough??

    • @mtarrant3
      @mtarrant3  3 ปีที่แล้ว

      Does it cut the wood?

  • @josephbohme7917
    @josephbohme7917 2 ปีที่แล้ว

    So miotch after use 18mos later what should be changed made better spocket sizes/quality. Motor rpm, Hp bearings transport feed dust chips vibration???

  • @sabanhodzic7244
    @sabanhodzic7244 2 ปีที่แล้ว

    Odlično

  • @brucetripp3331
    @brucetripp3331 ปีที่แล้ว

    Hi where about in Australia are you

  • @sergeyperegoedov9872
    @sergeyperegoedov9872 2 ปีที่แล้ว +2

    А если шину сделать 5-10 метров и секвойю распускать можно!!!

  • @bublifuk21
    @bublifuk21 6 หลายเดือนก่อน

    Hallo, I would like to ask you. What kind of flux core did you use? It weld very well and there is almost no splash and small balls during welding. Thank you very much.

    • @mtarrant3
      @mtarrant3  6 หลายเดือนก่อน

      I think this is Boss Weld brand. The cheap stuff is rubbish, stick to the trusted brand name stuff.

  • @matthiasherrmann5512
    @matthiasherrmann5512 2 ปีที่แล้ว

    Hi Mitch, you weld with out gas?

    • @mtarrant3
      @mtarrant3  2 ปีที่แล้ว

      Thats right, I'm using flux core wire

  • @ignaciopiqueras7474
    @ignaciopiqueras7474 3 ปีที่แล้ว +2

    Cuántas revoluciónes tiene el motor?