Rupes 15 or 21

Are u thinking the 15 or 21?


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Was thinking 21 with 5" bp. I have a ton of 5.5" pads already. But have heard people not liking that setup so idk if I would just be better off with the 15

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I have all of Rupes polishers and sanders except the T50. I don't remove nibbs on a daily basis so no reason for it. Neat little machine though.
:props:

In my opinion, the Duetto seems to be the best OVERALL polisher Roo-pes offers. Why? I heavily prefer the PC style chassis over the longer 15 and 21 chassis. Also, with the smaller stroke, it seems there would be less chance of bogging on curved panels. Obviously, if you take a flat panel and compare correction, the 15 and 21 will outdo the Duetto, but, the 12mm stroke of the Duetto ain't no slouch! As the link I provided above, it shows the Duetto can still do some serious correction! Add the washer mod and you have even more rotation! Can't wait to get my Duetto very, very soon!! :dblthumb2:
 
I read the replies from Kevin Brown on the other topic. So question following this: Anyone that has both machines, or used both, notice that tha 15 stalls easier on cuved panels then the 21?
 
:props:

In my opinion, the Duetto seems to be the best OVERALL polisher Roo-pes offers. Why? I heavily prefer the PC style chassis over the longer 15 and 21 chassis. Also, with the smaller stroke, it seems there would be less chance of bogging on curved panels. Obviously, if you take a flat panel and compare correction, the 15 and 21 will outdo the Duetto, but, the 12mm stroke of the Duetto ain't no slouch! As the link I provided above, it shows the Duetto can still do some serious correction! Add the washer mod and you have even more rotation! Can't wait to get my Duetto very, very soon!! :dblthumb2:

I can barely tell the difference between the 15 and the Duetto in correction ability. It makes up for its smaller throw by spinning much faster. If you use your Duetto as a wet sander take is easy...it cuts FAST FAST FAST.
 
I can barely tell the difference between the 15 and the Duetto in correction ability. It makes up for its smaller throw by spinning much faster. If you use your Duetto as a wet sander take is easy...it cuts FAST FAST FAST.

Tundra--is the Duetto as smooth as the 15? Do you use Rupes pads or others? Do none Rupes pads cause a reduction in the smoothness of operation? I noticed that the Rupes 5" backing plate is actually 4 7/8" which is exactly the same siz as the Velcro on Buff & Shine 5.5" pads so should make it simple to center the pad.
 
Tundra--is the Duetto as smooth as the 15? Do you use Rupes pads or others? Do none Rupes pads cause a reduction in the smoothness of operation? I noticed that the Rupes 5" backing plate is actually 4 7/8" which is exactly the same siz as the Velcro on Buff & Shine 5.5" pads so should make it simple to center the pad.

Logically thinking, the Duetto should be smoother. :)


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Tundra--is the Duetto as smooth as the 15? Do you use Rupes pads or others? Do none Rupes pads cause a reduction in the smoothness of operation? I noticed that the Rupes 5" backing plate is actually 4 7/8" which is exactly the same siz as the Velcro on Buff & Shine 5.5" pads so should make it simple to center the pad.

Duetto is slightly smoother especially in tight spots. I've said this before on many other threads and I'll say it again: Do not use non-Rupes pads on Rupes polishers. The polishers are too strong for the velcro backing on other pads. I've had 4 non-Rupes pads ripped off of my 21 while working. Proceed at your own risk.
 
Duetto is slightly smoother especially in tight spots. I've said this before on many other threads and I'll say it again: Do not use non-Rupes pads on Rupes polishers. The polishers are too strong for the velcro backing on other pads. I've had 4 non-Rupes pads ripped off of my 21 while working. Proceed at your own risk.

Thanks for the reply!!! Strange about the pads as I've noted quite a few pros on another forum that are using non Rupes pads with great success and durability.
 
Thanks for the reply!!! Strange about the pads as I've noted quite a few pros on another forum that are using non Rupes pads with great success and durability.

If they want to use non-Rupes pads I think that's great. I said 4 times right? I was quick enough 3 times to pull the polisher away. The 4th time I wasn't. The polisher hit the surface and I paid $1600 to have it repaired. So, how many Rupes pads can you buy for $1600? There is a time and a place to try to save money --- this isn't one of them. Do as you wish :dblthumb2:
 
I must have missed a pretty important testing session.

How was it concluded that the LHR15ES is less prone to having its backing plate stall under load (pressure, friction, panel curvature, etc.)

Unless the machine's "approach angle" was not adjusted to assist in minimizing an edge digging of its pad, I do not understand.
 
I must have missed a pretty important testing session. How was it concluded that the LHR15ES is less prone to having its backing plate stall under load (pressure, friction, panel curvature, etc.) Unless the machine's "approach angle" was not adjusted to assist in minimizing an edge digging of its pad, I do not understand.

No idea what you are referring to. All of my Rupes polishers and sanders perform flawlessly on any surface. "Edge Digging", in the context you refer to it, is a flaw in technique, which can occur with any polisher combined with any pad.
 
Hi, you're probably responding on what I asked.
I was asking because of the scentence I put in bold in this quote:

Question:
"At the risk of starting a debate, would a more powerful motor be beneficial?"

Kevin Brown:
"Yeah, this could start a big debate!

I think you'll find that most guys complaining about stalled backing plate rotation are using LHR15's.
 
"I think you'll find that most guys complaining about stalled backing plate rotation are using LHR15's."

Been doing allot of reading on the Rupes over the last few months on a number of forums in anticipation of a purchase and I've seen no evidence that the 15 is more prone to stalling than the 21 especially with the washer mod.
 
If they want to use non-Rupes pads I think that's great. I said 4 times right? I was quick enough 3 times to pull the polisher away. The 4th time I wasn't. The polisher hit the surface and I paid $1600 to have it repaired. So, how many Rupes pads can you buy for $1600? There is a time and a place to try to save money --- this isn't one of them. Do as you wish :dblthumb2:

I did some testing today and came to the conclusion that Rupes pads are definitely the smoothest on Rupes polishers. Not that other pads won't do a great job, the just may not be a smooth.


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