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  1. #1
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    Rupes 15 III vs. Gear Driven DAís

    Rupes 15 III vs. Gear Driven DA’s

    Just felt the need to compare these.

    On a flat panel, I can get more cut with the 15 III all day, everyday versus anY gear driven DA. I have the Rupes Mille and Flex 3401 and Rupes 15 III.

    The 15 is WAYYYYYYY more enjoyable to use. It’s smooth as silk and A LOT less taxing on the body. However, it does get annoying constantly having to switch to my Adams MINI and Flex Pixie where the 15 won’t do any good.

    You definitely can power through a curved panel and take less time with a gear driven DA. That’s a huge plus, but the less enjoyable experience always makes me reach for the 15 first.

    I will use both on a detail, but MUCH prefer the 15.

    On a side note, I’ve tried many other 15 & 21 DA’s and none are in the same league as far as smoothness as the Rupes. Pretty much every DA outside of the Rupes is made in China.


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  3. #2
    Senior Member Dan Tran's Avatar
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    Re: Rupes 15 III vs. Gear Driven DAís

    Quote Originally Posted by WRAPT C5Z06 View Post
    Just felt the need to compare these. On a flat panel, I can get more cut with the 15 III all day, everyday versus anY gear driven DA. I have the Rupes Mille and Flex 3401 and Rupes 15 III. The 15 is WAYYYYYYY more enjoyable to use. Itís smooth as silk and A LOT less taxing on the body. However, it does get annoying constantly having to switch to my Adams MINI and Flex Pixie where the 15 wonít do any good. You definitely can power through a curved panel and take less time with a gear driven DA. Thatís a huge plus, but the less enjoyable experience always makes me reach for the 15 first. I will use both on a detail, but MUCH prefer the 15. On a side note, Iíve tried many other 15 & 21 DAís and none are in the same league as far as smoothness as the Rupes. Pretty much every DA outside of the Rupes is made in China.


    Sent from my iPhone using Tapatalk
    Yeah, itís definitely apples to oranges. My preference being my RUPES LHR15 MK III over my RUPES Mille.

    I have so much time behind the random orbital that itís just really hard for me to pick up the gear driven. Itís a great machine of course. But I have yet to still fall in love with it.

    Note:

    The RUPES Mille truly is very smooth for a gear driven polisher still.

    Iím sure someone will chime in and will say the entire oppositeópreferring the gear driven.

  4. #3
    Senior Member TMQ's Avatar
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    Re: Rupes 15 III vs. Gear Driven DAís

    Interesting....

    Have a Rupes Mark II. Loved the machine.
    Got tired of it stalling all the time.

    Got me a Cordless Flex. Lordy!!!! Love the thing!

    No cords and powers through anything I need done in half time than the Rupes.
    Gather I will be selling the rupes when time comes.

    Not going back to a free rotating DA...!

    Tom
    Mr Tommy's
    Wash, Buff, Wax
    Website: mrtommyshine.com

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    Re: Rupes 15 III vs. Gear Driven DAís

    Quote Originally Posted by WRAPT C5Z06 View Post
    Pretty much every DA outside of the Rupes is made in China.

    ...And Pretty much all of them are either bulletproof, or guaranteed for life.

    I enjoyed your post up until the snobby shot I quoted above.
    It is no coincidence that man's best friend cannot talk.

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  8. #5
    Senior Member Dan Tran's Avatar
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    Re: Rupes 15 III vs. Gear Driven DAís

    Quote Originally Posted by TMQ View Post
    Interesting....

    Have a Rupes Mark II. Loved the machine.
    Got tired of it stalling all the time.

    Got me a Cordless Flex. Lordy!!!! Love the thing!

    No cords and powers through anything I need done in half time than the Rupes.
    Gather I will be selling the rupes when time comes.

    Not going back to a free rotating DA...!

    Tom
    I think itís about time I find a test panel somewhere. I would love to give it the chance it deserves. Itís clear that many prefer it.

    As of right now, I will use it if I have to. Definitely is worth having as a backup machine.

    I will also say that I am still drooling over all the FLEX cordless machines on the market. One day.

    In the meantime, the next couple of addition to the pack will be a RUPES LHR 21 MK III and the Duetto.

    The 21 is my ďnice to haveĒ wish list machine. And I have many days where I love the RUPES Mini body style. I know it seems excessive. But itís true.

  9. #6
    Director of Training Mike Phillips's Avatar
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    Re: Rupes 15 III vs. Gear Driven DAís

    Just to chime in,


    Quote Originally Posted by WRAPT C5Z06 View Post

    Rupes 15 III vs. Gear Driven DAís

    On a flat panel, I can get more cut with the 15 III all day, everyday versus anY gear driven DA.

    I have the Rupes Mille and Flex 3401 and Rupes 15 III.
    I think it's possible for a free spinning long stroke polisher to finish out nicer with great cut compared to a gear-driven tool but I'm not sure about faster and more cut.

    The reason I say this is with a gear-driven tool I can press down REALLY HARD and remove paint really fast. Kind of like a rotary buffer. This can be done with a free spinning long stroke to a degree and as long as the panel is flat. That's a couple extra variables to deal with.



    So a good test would be,


    Sand a flat hood with say #2000 grit

    Then have the same person, a fair and balanced person, make the same number of section passes over the sanded area using a free spinning long stroke and a gear-driven short stroke using the same pad and product.

    The difference would be the person could take full advantage of whatever feature the tool offers.

    But first decide what the criteria for judging will be.

    100% defect removal AND best finish

    Or

    100% defect removal in the least amount of time - finish results not as important


    I could see each tool excelling at one but not both.





    The above is all hypothetical though and really doesn't matter at the end of the day because all that really matters is if the person buffing out a car is happy with the tool and the time they have to invest to go from start to finish.

    If comfort, as in low vibration and smooth operation is more important than speed then free spinning long stroke all the way.

    If speed is the top priority and to heck with comfort and smooth operation - the gear-driven all the way.

    And that's what's so great about today's market - we have LOTS of choices. Back in the old day you three choices,


    1. Rotary buffer
    2. Cycle
    3. Traditional Orbital Buffer



    None of the cool tools we're taking about in this thread were invented yet.



    Quote Originally Posted by Dan Tran View Post

    In the meantime, the next couple of addition to the pack will be a RUPES LHR 21 MK III and the Duetto.
    I really like the RUPES BigFoot 21 Mark III - for this category it is best-in-class. That said, I have not used the brand new Griot's 21 I have sitting here on my desk. Sad to say - I have not had any cool cars to detail lately.


    I tested the Duetto for RUPES before it was introduced, I have the prototype in my collection about 5' from where I'm typing.

    I wanted to really like it a lot. I like the body style, it's like a Porter Cable 7424XP 8mm free spinning short stroke polisher, which I really like. The issue with the Duetto is maintaining pad rotation and I think the reason it struggles with pad rotation is because it's a 12mm free spinning random orbital stoke instead of being a short stroke like the PC.

    Here's my article that explain all of this,

    The ghosting footprint and the actual footprint - Long Stroke Free Spinning Orbital Polishers


    My explanation is below this picture,






    If RUPES re-introduced the Duetto as a short stroke polisher - I think it work better for paint correction - like the PC.


    And from the "For what it's worth" file, YEARS ago I recommended to FLEX to bring out the Mercedes-Benz of Porter Cables by introducing a short stroke free spinning random orbital polisher LIKE the Porter Cable only with FLEX quality. Alas they didn't listen and jumped on the long stroke bandwagon and introduced the 15mm free spinning FINISHER.

    If we go to the Wayback Machine, this thread is from the year 2011 - so 9+ years ago in Germany, the FLEX Engineers asked me for my thoughts on tool design and I told them to bring out the FLEX version of the PC.

    Secret meeting with the Flex Engineers!

    See post #13



    Ah.... but what do I know....


    Mike Phillips
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  10. #7
    Senior Member TMQ's Avatar
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    Re: Rupes 15 III vs. Gear Driven DAís

    Hummm....Gonna need to re-eval force rotation and free spinning DA.

    Mike's comments above made me rethink and I am observing results carefully.

    I am beginning to wonder if force rotation is NOT the best thing to use on med to med/soft and soft paints. Leaves a slight haze---hard to see till hit see it out in the sun.

    If one wants high gloss or off the charts paint "pop", Use free spinning DA on med/soft to soft paint.

    Is this correct?

    Tom
    Mr Tommy's
    Wash, Buff, Wax
    Website: mrtommyshine.com

  11. #8
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    Re: Rupes 15 III vs. Gear Driven DAís

    Quote Originally Posted by TMQ View Post
    Hummm....Gonna need to re-eval force rotation and free spinning DA.

    Mike's comments above made me rethink and I am observing results carefully.

    I am beginning to wonder if force rotation is NOT the best thing to use on med to med/soft and soft paints. Leaves a slight haze---hard to see till hit see it out in the sun.

    If one wants high gloss or off the charts paint "pop", Use free spinning DA on med/soft to soft paint.

    Is this correct?

    Tom
    Gear driven is definitely not the best choice for soft paint, especially non metallic soft black. Free spinning is a much better option for finishing.


    Sent from my iPhone using Tapatalk
    '03 Corvette Z06

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  13. #9
    Senior Member TMQ's Avatar
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    Re: Rupes 15 III vs. Gear Driven DAís

    Thanks Wrapt....

    Tom
    Mr Tommy's
    Wash, Buff, Wax
    Website: mrtommyshine.com

  14. #10
    Senior Member Dr Oldz's Avatar
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    Re: Rupes 15 III vs. Gear Driven DAís

    A few of my thoughts here:

    First is the fact there are so many different brands and TYPES of buffers..... great for detailers. The best buffer is what you are comfortable with and works for YOU!! If you are happy with the results, then you have the right machine.

    Personally, I cut with a rotary, Beast or CBeast.

    Generally finish with the Flex Finisher or cordless Finisher.

    AIO work done with Beast or CBeast.


    When Cutting Or doing AIO work, I want to work fast and effective. Hence why I chose the machines I mentioned above.

    When Finishing, I am usually starting to fatigue and want the smooth ride from a 15mm free spinning DA. Plus they do finish amazing on most paint systems.

    Abrasive technology is so impressive these days that with the right polish and pad, you can finish perfectly with a forced rotation DA even on softer paints and some time mastering the machine. Again on MOST paint systems.

    The truth about finishing......is taking a PC style machine (which may not be the coolest now a days) and finishing perfectly on EVERY paint system.

    While comparing a long throw DA to a forced rotation DA, I have to agree with Mike. Maybe a long throw will cut faster with machine weight only. Me, I like to muscle the machine around and work fast and effectively. I don’t buff a bunch of cube vans, I get vehicles with curves! So it’s why I prefer a forced rotation machine(either rotary or forced rotation DA)

    Again just my thoughts, experiences and what works for me.
    Jim

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