Got my PCXP :)

[J.S.]

Re: Got my PCXP

Interesting.

Centrifugal force maybe?

Interesting indeed. If the whole pad surface is "engaged" on the paint then whatever force is being applied by the user would be distributed over the whole pad surface. For the sake of this example, if the user kept applying what they thought was exact same amount of force and slightly lifted up on one side of the pad, technically there's more force being applied at that point because there's less pad surface on the paint distributing what the user thinks is same force. That extra force is enough to engage the cluth when the pad is angled.

Kind of like, it will hurt a lot more if somebody stabs you with a pencil than if they slapped you with the palm of their hand. The palm will distribute the blow better (i.e. less pain) than the head of a pencil (i.e. ).

Summary
The clutch will engage more easily when there's less pad surface one the paint (given the user is pushing down the "same" between full pad contact and angled pad).

Okay I'm a geek and I could be wrong. I was just thinking out loud.

[rusty bumper]

Re: Got my PCXP

That extra force is enough to engage the clutch when the pad is angled.

Clutch?

Does the 7424XP, and the 7424 have a clutch?

[J.S.]

Re: Got my PCXP

Clutch?

Does the 7424XP, and the 7424 have a clutch?

I'm not sure if "clutch" is the correct technical term for it but I know that with either the 7424XP, the 7424, or the Meg's G110 (there are others too), if you put enough force down on the pad you can made it stop...while the motor keeps turning. They're "dual action" polishers because of the way the pad rotates around the already rotating motor shalf.

On the contrary, for a "rotary" polisher (pad just rotates with the motor shalf itself), I've never used one (yet) and I don't think you'd be able to stop the pad...not before either damage to the surface you're polishing, the tool itself, or yourself. Not like you would want to do that anyway but I'm just saying for the sake of argument. I've used an angle grinder before and it shows no mercy.

[rusty bumper]

Re: Got my PCXP

I'm not sure if "clutch" is the correct technical term for it but I know that with either the 7424XP, the 7424, or the Meg's G110 (there are others too), if you put enough force down on the pad you can made it stop...while the motor keeps turning. They're "dual action" polishers because of the way the pad rotates around the already rotating motor shaft.

I see where you're coming from.

The pad rotation is due to centrifugal force created by the orbit of the gear unit. Like you said, you can stop the pad rotation altogether by applying the right amount of force on the tool, or by grabbing the pad with your hand. I'm referring to the G100 / 7424 here.

[J.S.]

Re: Got my PCXP

I see where you're coming from.

The pad rotation is due to centrifugal force created by the orbit of the gear unit. Like you said, you can stop the pad rotation altogether by applying the right amount of force on the tool, or by grabbing the pad with your hand. I'm referring to the G100 / 7424 here.

I'm sorry I didn't mean to babble. I typed a bunch of stuff you were already aware of. I get carried away sometimes.

I think the point of the matter is is that there's nothing defective about the 7424XP being picky auto head angle. It's just physics. If a person understands the physics of the the operation, then they could tweak their technique to avoid the "problem".

[rusty bumper]

Re: Got my PCXP

Follow up...

OK, after further reading I see that the 7424XP comes with a bigger motor, and is similar to the 7424 / G100 in polishing action. I was thinking the XP model had forced rotation to the pad, but it doesn't.

[invertalon]

Re: Got my PCXP

Mine arrives tomorrow!

[invertalon]

Re: Got my PCXP

Mine arrived today... First impressions?

More comfortable in the hand... I like the layout a bit better versus the old one.

Running at Speed 6, feel is about the same vibration wise to the old 7424. But this one does spin faster, so therefore, I will consider it doing a better job. Not much difference though.

It does seem with force on the pad, the XP will hold a little bit longer before rotation seizes. But I will have to see once I really work it out next week.

SO far, so good. I will give full review next week though.