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Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
Originally Posted by ScottH
Mike Phillips - hi Mike, did you experience the same poor pad rotation in free spin mode during your initial review?
Thanks,
ScottH
Yes. I found it difficult to maintain pad rotation in the free-spin mode. I've only buffed out the 1971 Duster with this tool and that's all I've had time for as we've had a lot of video projects in the garage in the last two weeks and more this week.
Here's what used this tool for on the Duster and the mode and the order I did the processes
Machine sanding with Mirka Abralon #3000 = Gear driven mode
Machine sanding with Mirka Abralon #4000 = Free spin mode
Comment: You shouldn't sand with the Makita PO5000C in the gear driven mode because it's too aggressive. I broke the rule because I felt lucky. I explain why you shouldn't use the Makita PO5000C to machine sand in the gear driven mode in my article on this topic with the FLEX 3401 here - dated February 14th, 2013
Can the Flex 3401 be used to wetsand?
I coined the term scalloping after the experience and strongly recommend against using a FLEX 3401 to machine sand clearcoat paints. I
In my boat detailing how-to book I do recommend using the FLEX 3401 for machine sanding gel-coats and aluminum but that's because these two materials are MUCH THICKER than clearcoat paints and they degrade to much worse condition. See the sections on restoring boats in category #4 and restoring aluminum pontoon boats.
Paperback book - How To Detail Boats With Marine 31 by Mike Phillips
Continued....
Here's what used this tool for on the Duster and the mode
Machine compounding to remove the #4000 grit sanding marks - Gear Driven Mode
Machine polishing to refine the results from the compounding step - Gear Driven Mode
Machine waxing to seal the paint after sanding, compounding and polishing = Free Spin Mode
I tested a lot of pads as shown in my initial review in the gear-driven mode and found that the Makita PO5000C will turn and churn just about any 5.5" foam or microfiber pads. I did not test larger pads in the gear driven mode. For the free spinning mode all I tested was the 5.5" Lake Country CCS pads and I did have difficulty maintaining pad rotation. This is why I did the compounding and polishing steps in gear-driven mode and used the free spinning mode to machine apply the wax as you don't need pad rotation to machine apply a wax.
I'll need to spend some more time behind the tool to find out more about it's abilities and limitations as well as test out other pad options to see which pad types work best and which don't.
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Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
Not sure what the heck was thinking with the random orbit mode; it's super smooth, but maintaining pad rotation is worthless. Gear driven mode was beastly and very smooth(with the right pads). Didn't have a car to really test it's correction ability, but I have a feeling it'll be a monster!
Mike, did you use MF pads for the compounding stage?
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Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
Originally Posted by WRAPT C5Z06
Mike, did you use MF pads for the compounding stage?
Kind of... I tested out RUES, Buff & Shine and LC microfiber pads on the new Makita tool when I compounded the 1971 Duster but anything I used microfiber on I re-compounded with foam as fibers are form of abrasive and I saw micro-marring in my results.
For the record, foam cutting pads with this tool were more than enough to pull out #4000 grit sanding marks using SONAX CutMax. I would say the paint was in the medium range from soft/medium/hard.
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Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
Originally Posted by Mike Phillips
Kind of... I tested out RUES, Buff & Shine and LC microfiber pads on the new Makita tool when I compounded the 1971 Duster but anything I used microfiber on I re-compounded with foam as fibers are form of abrasive and I saw micro-marring in my results.
For the record, foam cutting pads with this tool were more than enough to pull out #4000 grit sanding marks using SONAX CutMax. I would say the paint was in the medium range from soft/medium/hard.
Thanks!
What foam pads did you use to compound?
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Super Member
Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
Thanks Mike for your insights. This morning I noticed the backing plate does not spin freely (by hand) when in free spin mode. This got me thinking - could this be solved with a washer installed? I have one washer on each of my GG6's, G15 and 7424. Granted they spin more freely out of the box (without a washer) than the 5000 does, but now then spin VERY easily - and I am sure this helps maintain pad rotation.
Mike I know you took the 5000 apart - does it support a washer mod or is this not possible due to being gear driven?
Thanks,
ScottH
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Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
Originally Posted by ScottH
Thanks Mike for your insights. This morning I noticed the backing plate does not spin freely (by hand) when in free spin mode. This got me thinking - could this be solved with a washer installed? I have one washer on each of my GG6's, G15 and 7424. Granted they spin more freely out of the box (without a washer) than the 5000 does, but now then spin VERY easily - and I am sure this helps maintain pad rotation.
Mike I know you took the 5000 apart - does it support a washer mod or is this not possible due to being gear driven?
Thanks,
ScottH
The washer presents a bit of spacing on the 15mm & 21mm, so the backing plate does not rub the shroud, allowing it to spin freely. On the Makita, the backing plate does not rub the shroud, so I don't see where this would help.
FWIW, if I'm correct, Mike has NEVER advocated using a washer in any polisher.
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Super Member
Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
Thanks Wrapt. I didn't have a close look at the backing plate-shroud spacing this am but trust your eval. Wow I have to say then I am extremely disappointed with Makita if the expected behavior is no rotation under only the machine's own weight at speeds under 4 on a perfectly flat surface. How did this get to production after so many years of testing? Certainly we weren't the only ones to notice. OK so I have a nice gear driven machine and that is really how I intend to use it since I have 5 other free spinning machines. However that won't be the case for people looking to have one machine that does both. I can't for the life of me think this is normal. I'll reach out to Makita to see if I am overlooking something. Will let you know what they say.
ScottH
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Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
Why does it matter if the pad spins in random orbital mode? How much energy is really being generated, and where does that energy come from?
RSW
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Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
Originally Posted by ScottH
Thanks Wrapt. I didn't have a close look at the backing plate-shroud spacing this am but trust your eval. Wow I have to say then I am extremely disappointed with Makita if the expected behavior is no rotation under only the machine's own weight at speeds under 4 on a perfectly flat surface. How did this get to production after so many years of testing? Certainly we weren't the only ones to notice. OK so I have a nice gear driven machine and that is really how I intend to use it since I have 5 other free spinning machines. However that won't be the case for people looking to have one machine that does both. I can't for the life of me think this is normal. I'll reach out to Makita to see if I am overlooking something. Will let you know what they say.
ScottH
No problem, Scott.
I think the lack of rotation in free spin is very normal with this machine, unfortunately. Every demo I've seen, it stalled very easily in free spin. I was hoping I was wrong when I got my hand on it, but I wasn't. Good point about those who think they're getting a great gear driven AND free spin. Gear driven - YES, free spin - NO
FWIW, I can't wait to give this machine a run in gear driven mode on heavily swirled paint. I think it will correct VERY WELL!!
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Re: Flex 3401 vs. Rupes Mille/Makita P5000C, for those that are wondering.
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