rupes mark II 21" vs 15"

[dragan75]

waht i sbeter to by big foot 21" or 15"
peopel say that have problems whit pads i use shool, megs, heks logic pads or MF pads
and they are so hot after time to time and burn center is it true?
i use for now flex vrg 3401
any sugestion or idea?

[DaveT435]

The machine runs cooler than the 3401. When using proper technique heat isn't an issue with the pads. Especially pads with the hole in the center to dissipate heat more effectively. You don't use the downward force with the long throws like you do the Flex.

[Zubair]

The 15 is easier to use on tighter areas,the 21 is considerably more powerful. Thats the most simple, direct, truthful answer from someone who owns both.

[dragan75]

i dont have hole in center of pads its older model of heks logic pads mf megs dont have same and shool spider pads is that a problem bicouse of tem but flex is force D/A mashine 8 mm
and i will by a nano same whti long neck... same form ruepes
say not force to much on mashine?if i understand you

[Mike Phillips]

The machine runs cooler than the 3401.

When using proper technique heat isn't an issue with the pads. Especially pads with the hole in the center to dissipate heat more effectively.

You don't use the downward force with the long throws like you do the Flex.




I agree.

I think in my RUPES how-to book one of the things I share is to take everything you've learned and know about buffing with all other polishers, as far as technique and throw it out the window.


:)

[DaveT435]

Correct, you don't have to push down on the machine like a Flex. Light pressure and let the machine, pad, and product do the work.
I may have misunderstood the question are you asking about those two machines vs a Rupes, or comparing the 15 to the 21.

[DaveT435]

I agree.

I think in my RUPES how-to book one of the things I share is to take everything you've learned and know about buffing with all other polishers, as far as technique and throw it out the window.


:)

I was supposed to get a copy of your book free when I bought my mini on Autopia but I ordered it over the phone and didn't get the book with the machine. I really enjoyed the one book of yours I have. Your explanations are very thorough and easy to understand.
It took me a few years to finally break down and buy a Rupes. Bought the ibird and after seeing the quality of that machine and how well it worked I got a 15 Mark II and a mini witching a few weeks. With my back issues they have added even more enjoyment to doing paint corrections.

[dragan75]

Correct, you don't have to push down on the machine like a Flex. Light pressure and let the machine, pad, and product do the work.
I may have misunderstood the question are you asking about those two machines vs a Rupes, or comparing the 15 to the 21.

no just ask mcompare bicouse what is beter big foot 15" or 21 " bicouse of heat temp.on pads and what preasure what use i never use rupes ok light preusre and go slow whit mashine, 6" pads are good for rupse 21


Sent from my iPhone using Tapatalk

[dragan75]

and how i can by book am not from america any pdf or link where i can read


Sent from my iPhone using Tapatalk

[DaveT435]

I don't see a link for the downloadable version yet. Hopefully Mike will chime in.

You can also get a 5" backing plate for the 21 I believe. I find the 15 to be more versatile. Here is a link to the book itself which they can ship. Not sure about freight costs,
Mike Phillips’ How to Use The RUPES Bigfoot Paint Polishing System (http://www.autogeek.net/rupes-system-book.html)

[WRAPT C5Z06]

The 15 is easier to use on tighter areas,the 21 is considerably more powerful. Thats the most simple, direct, truthful answer from someone who owns both.
When you say more powerful, do you mean more pad spinning torque?

[Zubair]

When you say more powerful, do you mean more pad spinning torque?

Yep, definitely more torque turning the pad and keeping rotation. You will find most rotation complaints on any brand long throw being on the 15. The 21 especially the MKII has the best rotation and outright grunt. The 15 MKII will still be more powerful than any long throw on the market but not the 21 MKII.

[WRAPT C5Z06]

Yep, definitely more torque turning the pad and keeping rotation. You will find most rotation complaints on any brand long throw being on the 15. The 21 especially the MKII has the best rotarion and outright grunt. The 15 MKII will still be more power than any long throw on the market but not the 21 MKII.
Makes sense. The momentum of the huge 21mm throw in itself helps with rotation.

[WRAPT C5Z06]

Zubair, do you use a washer in any of your Rupes?

[Zubair]

Zubair, do you use a washer in any of your Rupes?

Yes I do but no need with the Kamakazi's that are on there now. The MKII's seem to benefit more from being free than the MKI's. The 21 MKII is ridiculous in correction just like a rotary and should come with a warning, not because it will burn paint but because it removes paint unlike any dual action in existence.