Rupes mark ii 15 stalling badly

[custmsprty]

That's where a Mini is a blessing and for the really tight spots, the PE 14 with 1" and 2" pads are a joy.

Me like my Mini !!!!!

[don40vette]

I want to thank everyone that has provided information and guidance on my thread. After I posted this thread I sent Dylan an email and he replied quickly saying a video would be great as others have said here. He also added Jason Rose to the email and I cant ask for more.
I plan on taking some videos this weekend and I ask for one thing. When it shows it's operator error, go easy on me okay.

[Eric@CherryOnTop]

I'm actually pretty curious to see that video. I've never known my Rupes to be anything but excellent.


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[Dylan@RUPES]

I want to thank everyone that has provided information and guidance on my thread. After I posted this thread I sent Dylan an email and he replied quickly saying a video would be great as others have said here. He also added Jason Rose to the email and I cant ask for more.
I plan on taking some videos this weekend and I ask for one thing. When it shows it's operator error, go easy on me okay.

Happy to help and don't think too much of it. Sometimes its something so simple we forget to even ask the question. Something like: "Did you plug the tool into an electrical outlet?"

and yes... that is a question I had to ask a guy once with a tool that wouldn't work right out of the box and the answer as it turned out was "No. I thought it was rechargeable like your other tools"

So no matter what the answer ends up being after we watch your video take solace in knowing at least you knew enough to plug the tool in before you started

[atgonzales]

Dylan

You have been outstanding responding to all issues with the Rupes line, shows your dedication and that of Rupes as well, I hope in the near future to making a purchase of Rupes line when the funds see fit.

All the best

[WRAPT C5Z06]

I wold have to respectfully disagree.

In my opinion and experience, in order for any orbital polisher to remove defects it must remove paint and paint is removed most effectively if the pad is BOTH rotating and oscillating.

I don't think an orbital tool can remove paint if the pad is ONLY oscillating because this would basically be the pad vibrating against the paint. It's the combination of rotation and oscillation that removes paint. I'm open to changing my mind if someone can take a car with swirls and scratches and remove them using only oscillation and zero pad rotation.

Even if it worled.... which I don't think it will.... it would take a LOT longer to correct a car than it would if the pad is both rotating and oscillating.

In my experience, I agree with this.

[Dylan@RUPES]

That said, I'm just having a hard time understanding how a pad just vibrating against paint would also be effective at removing paint.

When I look at a pad on a RUPES BigFoot 15 or 21 and if it's not rotating - and by this I mean the pad is making ZERO rotations... then all it can do is basically vibrate or jiggle against the paint. And I've buffed out a lot of cars with these tools and I just haven't personally seen non-rotating pads removing defects.

To a degree true and not true Mike - the most effective movement is obviously going to be both the orbit and the rotation combined. With the traditional 8mm tools the movement of the orbit itself was hardly enough to do more than 'vibrate against the paint', but the distance traveled in the 15, and definitely 21, millimeter orbits is such that it can continue to remove material even when rotation slows/stalls. 2.5x more movement (with the 21) is a lot more distance and enough that material is removed. Is it ideal? Certainly not and from a standpoint of the pad shedding spent material it won't work for long in that situation as nothing will migrate far from where it originates (removed material, abrasives, etc) but I have observed and can demonstrate that correction is happening when only orbit exists and rotation is stopped.

Different dynamic, but good for visualization of the concept - if a pneumatic sander is slowed down and pressure is applied it will orbit, but not rotate. That orbit (if significant enough) will continue to impart change to the underlying surface - the problem is it does not shed the removed material and loads the abrasive up, thus stopping or impacting the quality of the sanding process. Same idea - the orbit of the polisher will continue to polish, but it might not work for very long until the tool has the ability to start rotation again OR the pad is cleaned.

[Dan Tran]

i paid $400 for a polisher that stalls with zero pressure on a flat panel using Rupes polish and pads. If you keep the machine within 2-3 degrees axis of rotation it will keep spinning but otherwise it just stalls and that is with washer mod.
I love how little vibration it has but is it because at least 50% of the the time it is not rotating.
Im sure if more people that own these were to put marks on their backing plate this would become a huge issue.

Hello Geeks...

I think I am going to take a stab at this...

I ordered my Rupes 15 MKII when the HD version was first released a few months ago. Since then a have used it quite a few times of course. As I was using this machine yesterday, I started to experience a bit of what the OP is stating. In the past I never remembered this to be the case. As far as I can remember, it truly was a SMOOTH machine with no stalling issues on flat panels. Yesterday, it actually rotated better on vertical panels than on flat panels believe it or not.

I have read this thread recently, but I didn't think much of it until now.

I came across of this statement today from a past thread and this is what Dylan stated...which of course got me thinking.

"The backing plate contact with the shroud should be lubricated with dielectric grease, but you can substitute vasoline if needed in a pinch. Just run a light coating of it on the edge of the shroud, then when you attach the backing plate manually rotate it a few times to spread it out and you're good. "

At this point in time here is what I can speculate. Since owning this machine, I have not taken the time to lubricate the backing plate.

I will go home and try this today.

I hope this resolves the issue for me too.

Forgive me if someone had already stated something like this, but I didn't catch anything to this nature in this thread..

happy detailing!!

[KBsToy]

Would the washer mode do the same thing as applying lubricant ??

[Zubair]

Would the washer mode do the same thing as applying lubricant ??

Yes as you wont get that binding or friction.