tried the edge 2000 6" on a PC

I

imported_paradigm

New member
i tried the 6" edge 2k pads and had a problem when using them with my PC. i found that when i would start on any vertical surface or apply more than slight pressure, the PC stopped rotating and only vibrated the pad. on horizontal panels it was perfectly fine.



i was concerned that there was a problem with my PC...but then switched back to a standard backing plate and everything was normal.



it almost seemed like the pad was too heavy for the PC to deal with or something.



anyone have ideas?
 
I'm also having problems with my Edge 2000 pads. Blue stopped spinning and started hitting on the PC. I think it is a problem with the pads.
 
The drive action of the PC is orbital, not rotational like a rotary. That's why it's called an *orbital* buffer and that's why it's speed is rated in orbits per minute and not rotations per minute. The reason some pads might spin and some might not is because of centrifugal force and the amount of pad to surface friction.



Put your backing plate and pad back on. Then grab the pad in one hand and turn on the PC. You'll soon see that *none* of your pads rotate, but they will orbit. If you try this with a rotary, you will not be able to stop the pad from rotating. The PC and rotary have two completely different types of actions. The rotary rotates and the PC simply orbits.
 
LazerRed1 said:
It certainly spins when it's not on a surface. I spin them after washing to get the water out.
Click to expand...

Well of course it does, because of centrifugal force. But there is no direct drive action to spin or rotate the pad like a rotary. It’s an orbital action machine, not a rotary action machine.
 
I read somewhere that the structure of the Edge foam is

such that you don't have to apply as much pressure

as you would with other pads. This theory seems to

work for me in practice. I just switched to the Edge system

for DA and am very happy with it.



Try contacting Aaron (I believe) @ Edge...they're pretty responsive.
 
Try not using so much pressure . BTW what speed are you having this issue with ?

Let us know how that works for you .
 
The pads really shouldn't be spinning. The amount of pressure you use is a lot more important than whether it spins or not. The effective action is the back and forth motion, not the spinning motion like a rotary. The theory of a DA is to mimic the motion of a hand. Can you spin your hand? I sure hope not, lol.



If the pads are heavier, then this is why they are not spinning. Just use your normal amount of pressure, nothing more, and you will be fine.
 
I'm curious why the Edge pads do this...

Others have said that 7.5" pads are too large to use with the PC so I snapped this video the other night to prove that the PC is more than powerful enough to spin the pad, even with pressure. Take a look and listen, the pad always rotates even with a significant amount of pressure:



On speed 5:





Speed 6:





FWIW, this is not an instructional video, its purpose is to show how the pads on the PC spin.
 
budman3,



My PC doesn't spin anywhere near that much. There are obviously a lot of variables that come into play here that cause the pads to spin, or not, and I have no clue what they all are. What I do know is that the spinning motion doesn't matter. It doesn't improve or reduce the level of effectiveness of the PC.



Thanks for sharing the video though, it was interesting to see and hear how different PC's act.
 
budman3 said:
...Others have said that 7.5" pads are too large to use with the PC so I snapped this video the other night to prove that the PC is more than powerful enough to spin the pad, even with pressure...
Click to expand...

You're missing the point. Grab your pad with the PC turned on and see how much it spins. The pad orbits, but it doesn’t spin when you grab it because the spinning is a result of centrifugal force from the orbiting action.



The only reason people say 7.5 inch pads are too large has nothing to do with them spinning or not spinning. It has to do with the pad’s working pressure per square inch and smaller pads have more working pressure per square inch than larger pads. In other words, a smaller pad will give you more cut than a larger pad (assuming both pads are of the same foam, ppi, etc). Yeah, a 7.5� pad will work on a PC and so will a 10� pad, but it’s not as effective as a 6� pad and 4� pads are even more effective, but you have to draw the line somewhere. ~6 inches is a good compromise between working pressure and size.



Simple math makes all this obvious (I hope). (A = p r ^2), which means the Area is equal to 3.14 times the Radius Squared. A 4" pad will have an area of about 12.57 in^2 where as a 6" pad will have an area of about 28.27 in^2. An 8" pad has a whopping area of 201.06 in^2, or about 7 times that of a 6" pad and nearly 16 times that of a 4" pad!
 
Let's discuss the true issue... Does pad spin on a DA polisher assist in producing a better final finish? I contest that that answer is "probably", but I have no way to prove it.



I have been testing (ok, beating the Hell out of) the Edge system for the past week on my new UDM DA. What I notice is that pad spin is less, as is vibration. The fact that the Edge system is always perfectly centered improves balance and reduces pad rotation forces via CF.
 
qadsan said:
Simple math makes all this obvious (I hope). (A = p r ^2), which means the Area is equal to 3.14 times the Radius Squared. A 4" pad will have an area of about 12.57 in^2 where as a 6" pad will have an area of about 28.27 in^2. An 8" pad has a whopping area of 201.06 in^2, or about 7 times that of a 6" pad and nearly 16 times that of a 4" pad!
Click to expand...



I think the batteries were a little low in your calculator or something, an 8" circle has an area of 50.27 sq. inches, so its area is a bit less than twice the 6" pad, and four times a 4" pad.



PS Looks like you squared the diameter for the 8" pad instead of the radius.
 
Setec Astronomy said:
I think the batteries were a little low in your calculator or something, an 8" circle has an area of 50.27 sq. inches, so its area is a bit less than twice the 6" pad, and four times a 4" pad.



PS Looks like you squared the diameter for the 8" pad instead of the radius.
Click to expand...

Good catch (thank you) :cooleek:



We've had weird intermittent humming noises coming from somewhere outside our house for the last few months and I got interupted several times by this noise when typing my last post. It's extremely intermittent and I usually only hear it in the evenings, so when I hear it I stop everying and hobble outside to see where its coming from. And the noise stayed on long enough to where I could finally narrow it down a bit more. It's coming from a neighbors property near their barn / tack rooms, so perhaps its a water pipe resonating???
 
wow...i think this thread should get the medal for "most mutated off topic ever". :rofl



thank you for the replies. i wish i could explain it better or have a video of what the edge pads were doing on the vertical surfaces. i was not using much pressure at all and when the rotation stopped, i could not easily move the pad across the surface...it just didn't seem "right".



yes, i know exactly how/what/why the differences of a rotary vs. ro...and it was definitely not right, which is why i stopped using it and then posted the question. :)



i'll just call the manufacturer tomorrow and see what's up. if i end up only using them on my rotary, that's fine too (it's why i bought them...working on the pc is just an extra bonus).
 
paradigm, if by chance you're local to North O/C SoCal, I've got a half dozen PC's here if you want to compare how your's operates vs mine just incase there is a difference or some kind of issue with your PC. I also have plenty of edge pads and adapters here incase you want to compare your pads and adapter with mine to see if there is a difference :)



I've got to get back to working on my wife's mothers day present before I go into the hosptial tomorrow. I'm detailing her F350, her Excursion and her 30ft trailer today / tonight. I don't think I'll finish since two of my helpers abandoned me, but I'm sure going to try.
 
qadsan said:
Good catch (thank you) :cooleek:



We've had weird intermittent humming noises coming from somewhere outside our house for the last few months and I got interupted several times by this noise when typing my last post. It's extremely intermittent and I usually only hear it in the evenings, so when I hear it I stop everying and hobble outside to see where its coming from. And the noise stayed on long enough to where I could finally narrow it down a bit more. It's coming from a neighbors property near their barn / tack rooms, so perhaps its a water pipe resonating???
Click to expand...



There is no way in hell a water pipe could resonate enough for you to hear it in your house to a neighbors house! It would bust every seam it had with resonation/vibration at that level.

If I were you I would check into this further, and see exactly is going on.

Changeling
 
paradigm said:
thank you for the replies. i wish i could explain it better or have a video of what the edge pads were doing on the vertical surfaces. i was not using much pressure at all and when the rotation stopped, i could not easily move the pad across the surface...it just didn't seem "right".







i'll just call the manufacturer tomorrow and see what's up. if i end up only using them on my rotary, that's fine too (it's why i bought them...working on the pc is just an extra bonus).
Click to expand...



That is exactly the way mine is acting. If I had a different type of pad, I'd try it. Hope it isn't the PC cause it's new.



I'd be interested in what you find out. I used the orange today since my blue one destroyed itself after one use and it seemed that the pad worked better with more polish, almost to the point of being too much. Still only really worked semi-well on flat surface, not vertical.
 
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