Ok I am about to buy a Rupes and I really need to know for sure ..

[RMarkJr]

I am about to buy a rupes. I am looking at the mark II 21 and the mark II 15. I am leaning towards the 21 for the bigger pad size and power. Now when I say power I see that they both claim to be 30% more powerful than the previous model. BUT I have seen numerous comments that say the mark II 21 is more powerful than the mark II 15, meaning that its harder to get it to stall. This to me does not make sense due to the power increase on both of the polishers and as far as I can tell the only difference is the pad size.

so there is that.


also I want to know what is the smallest pad size that you can use on the mark II 21? I do see 4inch Rupes pads on this site ... but I thought that the mark II only went down to 5 inch pads? If you can do it and it just vibrates a little .... thats fine.. im coming from a PC .. so I am not concerned with a little vibration.

is there even a 4 inch backing plate option for the Rupes mark II 21?

also is the rupes microfiber pads worth anything? I have seen reviews on amazon .. and they arent good.

and the HD model .. is the only difference the power cord?

Thanks for the help

 

[mbkite]

You tube rupes and Jason rose you need more research at this time

 

[Eldorado2k]

You cannot use a 4" backing plate on a Rupes 15 or 21.

Yes, the only difference in the HD model is the cord.


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[RMarkJr]

You tube rupes and Jason rose you need more research at this time

I will look at that video .. if I havent seen it before. Yes I agree with the more research .. but really at this point I dont really know how much more research I can do. I think I have about exhausted youtube and google on the subject. Seriously every single day its youtube videos .. goodle searches .. and here for detailing info on different things for about the past 2 months. I have also been on a pretty big buying spree in the time frame as well. But as for the research part .. thats also why I am here and am looking for people who are familiar with both machines that could tell me if the mark II 15 really does stall easier than the MarkII 21 even with the same power.

 

[RMarkJr]

You cannot use a 4" backing plate on a Rupes 15 or 21.

Yes, the only difference in the HD model is the cord.


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Hmmm if its just the cord that doesnt really seem worth it lol Who cares about the cord being a bit longer and bigger? surely they didnt put a smaller cord on the standard machine that can supply the right amount of power?

 

[Eldorado2k]

Hmmm if its just the cord that doesnt really seem worth it lol Who cares about the cord being a bit longer and bigger? surely they didnt put a smaller cord on the standard machine that can supply the right amount of power?

Correct, the cord on the regular machine is more than capable to supply the power it needs. The thing is [and this is my opinion] that alot of people don't use an adequate enough extension cord when they connect their polisher. I guess it'll work on most occasions with a 16ga. cord, but don't be surprised if your polisher doesn't seem to be running at full power.

Having the extra long cord is ideal for people who work inside their garage or are within a close distance to a wall outlet.


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[RMarkJr]

Correct, the cord on the regular machine is more than capable to supply the power it needs. The thing is [and this is my opinion] that alot of people don't use an adequate enough extension cord when they connect their polisher. I guess it'll work on most occasions with a 16ga. cord, but don't be surprised if your polisher doesn't seem to be running at full power.

Having the extra long cord is ideal for people who work inside their garage or are within a close distance to a wall outlet.


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got ya .. that makes sense.

so you know anything about the Rupes mark II 21 being more powerful than the Rupes Mark II 15 .. even when the both have the same 30% power increase? Power as in the pad stalling out?

But then again .. if you cant do 4 inch pads on either one then there isnt really a point to the mark II 15 .. as you can do 6 inch pads.. 7 inch pads and 5 inch pads on the mark II 21 ... where on the mark II 15 I imagine that it might be a little harder to up to the bigger pad sizes like the 7 inch pad with a 6 inch backing plate ... hmmm

 

[Eldorado2k]

got ya .. that makes sense.

so you know anything about the Rupes mark II 21 being more powerful than the Rupes Mark II 15 .. even when the both have the same 30% power increase? Power as in the pad stalling out?

But then again .. if you cant do 4 inch pads on either one then there isnt really a point to the mark II 15 .. as you can do 6 inch pads.. 7 inch pads and 5 inch pads on the mark II 21 ... where on the mark II 15 I imagine that it might be a little harder to up to the bigger pad sizes like the 7 inch pad with a 6 inch backing plate ... hmmm

I don't have a Rupes. But isn't that 30% more power vs. the previous versions? [legacy model]
If so, I'm pretty sure the Rupes Legacy 21 is more powerful than the Rupes Legacy 15.. I'm interested to see what Rupes 21 Markll owners have to say about it being great because you can run 7", 6", and 5" pads on it... I know that's why I like my G21, but I haven't heard anyone say that about the Rupes 21 Markll.


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[Joel1979]

I have both 15 and 21 mk2. 15 is smoother and 21 is more powerfull and doesnt stall easily. I love both of them. I had some stalling problems with my 15 but i took the washer mod off and did sanding mod and now it works alot better.

 

[RMarkJr]

I have both 15 and 21 mk2. 15 is smoother and 21 is more powerfull and doesnt stall easily. I love both of them. I had some stalling problems with my 15 but i took the washer mod off and did sanding mod and now it works alot better.

Thanks for the reply .. thats so weird that the 15 stalls easier than the 21 even with the same 30% increase in power. I havent heard of the sanding mod. With that did it match the power of the 21 with the stalling? or is it still short?

do you ever use the 7 inch pads on the Rupes 21 and or the 5 inch pads on the 21?

 

[Ceerokz]

Rupes - check out Kevin browns page Buff Daddy
YouTube - search Kevin brown and AMMO NYC
If you want absolute power look into FLEX and ask Mike Philips

 

[dlc95]

If you want absolute power look into FLEX and ask Mike Philips

I kind of look at Rupes as finesse tools with great cutting "potential". I wouldn't recommend them to someone who preferred a more heavy handed approach to polishing paint. They simply seem to disappoint those using them. The operator ends up overheating, chewing up pads, and complaining about lack of power because it won't maintain rotation while being mashed against a contour with 20 lbs of pressure on it.

I guarantee that same person would be in love with the Flex 3401.

Pad stall seems to be a concern with the OP. If there is was ever a reason to go with the 3401, that is it. You can also use 4" pads with it via the Lake Country plate.

The 3401 has no problem turning heavy cutting wool pads, and is not at all worried about pad or product specifics, where some of the long stroke tools that were developed along side proprietary pad/polish systems, might struggle with after market accessories.

This all coming from a "random orbital guy".

 

[RMarkJr]

I kind of look at Rupes as finesse tools with great cutting "potential". I wouldn't recommend them to someone who preferred a more heavy handed approach to polishing paint. They simply seem to disappoint those using them. The operator ends up overheating, chewing up pads, and complaining about lack of power because it won't maintain rotation while being mashed against a contour with 20 lbs of pressure on it.

I guarantee that same person would be in love with the Flex 3401.

Pad stall seems to be a concern with the OP. If there is was ever a reason to go with the 3401, that is it. You can also use 4" pads with it via the Lake Country plate.

The 3401 has no problem turning heavy cutting wool pads, and is not at all worried about pad or product specifics, where some of the long stroke tools that were developed along side proprietary pad/polish systems, might struggle with after market accessories.

This all coming from a "random orbital guy".

I was seriously looking into those due to the forced rotation. But then I started seeing how the Flex only has an 8mm throw and the rupes has 15 and 21mm throws and that makes it much faster in correcting even without putting a lot of pressure down on the pad ..etc .. really wish I had a way to try these out .. but I am out of luck on that one.

 

[Eldorado2k]

The 3401 is not at all worried about pad or product specifics

If that's the case, then why do 99.9% of the people say to use LC Hybrids?



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[RMarkJr]

Rupes - check out Kevin browns page Buff Daddy
YouTube - search Kevin brown and AMMO NYC
If you want absolute power look into FLEX and ask Mike Philips

actually the only thing I have seen him say about his choice between the two was some vague post that said something like .. if you look deep into my avatar eyes you might see the answer.

but I also see him in videos and on here almost always talking about the Rupes .. So I am guessing that he is more of a rupes guy than a flex guy.

 

[wing commander]

If you are coming from a Porter Cable you will love a Rupes MKII 15 or 21 in fact the 15 would be a great all around and the Porter could be used for 4" and 3" pads.

 

[VISITOR]

I am about to buy a rupes. I am looking at the mark II 21 and the mark II 15. I am leaning towards the 21 for the bigger pad size and power. Now when I say power I see that they both claim to be 30% more powerful than the previous model. BUT I have seen numerous comments that say the mark II 21 is more powerful than the mark II 15, meaning that its harder to get it to stall. This to me does not make sense due to the power increase on both of the polishers and as far as I can tell the only difference is the pad size.

so there is that.


also I want to know what is the smallest pad size that you can use on the mark II 21? I do see 4inch Rupes pads on this site ... but I thought that the mark II only went down to 5 inch pads? If you can do it and it just vibrates a little .... thats fine.. im coming from a PC .. so I am not concerned with a little vibration.

is there even a 4 inch backing plate option for the Rupes mark II 21?

also is the rupes microfiber pads worth anything? I have seen reviews on amazon .. and they arent good.

and the HD model .. is the only difference the power cord?

Thanks for the help

what other polishers do you have?

 

[dlc95]

If that's the case, then why do 99.9% of the people say to use LC Hybrids?



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The Hybrids are an after market recommendation. Flex inever specified what pads to use with it.

I would assume a majority of the people who bought the Hybrids, did so initially on recommendation, and may not have even tried anything else.

 

[Ceerokz]

You still have the PC? Hope you still do. Adding a 3 inch bp is nice. For a long throw go get the 21. Just be patient and learn the technics. I have the Boss g15 and I love it but I wish I got the g21.

 

[dlc95]

I was seriously looking into those due to the forced rotation. But then I started seeing how the Flex only has an 8mm throw and the rupes has 15 and 21mm throws and that makes it much faster in correcting even without putting a lot of pressure down on the pad ..etc .. really wish I had a way to try these out .. but I am out of luck on that one.

I'm confused a bit. The 15 and 21 correct faster, but you've not tried them out yet?

Or this is what you've read?

Not calling you out, just trying to clarify.

I just see concerns over power and stalling. I know that the 3401 has power in spades, and will never stall.

The long stroke tools have a bit of a learning curve that sometimes frustrates people new to using them. Even I had issues my first go round with my Duetto! I almost sold that thing at least a half dozen times..... But I finally got the hang of it after some dedicated time using it. That never happened with the 3401. With the 3401 I put the pad on, and started working immediately.

Anyway, just a consideration based of observing your concerns.