Size of orbit on PC 7424XP

[Dan Ruddock]

New to forum, Hi everyone. I just bought a GG6 ROP on ebay and sent it back to the seller because it was the previous gen with the 1/8" orbit which will not cut it for me (spin under load is wimp city). His ad used a file photo of the new model and I called him on it and he relented.

My question is, what is the orbit size on the PC? I know it is 5/16 on the current GG. I have lurked at a lot of talk about maintaining spin but read nothing about what makes it spin because the thing is freewheeling.

In my mechanically adept mind I have surmised that the orbiting motion transfers kinetic energy into the pad and BP and makes it spin which would explain why the 1/8" GG was worthless.

If you want a DA to spin stronger increase the size of the orbit although it would be more sensitive to balance and keeping vibration under control could be a problem. I say all this because I still need a DA and will go for which ever one has the bigger orbit between the GG and the PC.

Also I have heard some say there is a clutch in a DA, Not true.

Dan

 

[tuscarora dave]

All three of the current DAs, GG, PC and G110V2 have a 5/16" orbit. If you want a larger orbit than that look into getting a Dynabrade attachment for a rotary polisher.

 

[dougaross]

All three of the current DAs, GG, PC and G110V2 have a 5/16" orbit. If you want a larger orbit than that look into getting a Dynabrade attachment for a rotary polisher.

or flex 3401

 

[tuscarora dave]

or flex 3401

Yes, as Doug has mentioned...or the 3401, the 3401 is a completely different mechanical concept though. I have both the Dynabrade attachment and the 3401 and almost never reach for the Dynabrade attachment. If I'm not using my rotary it's the 3401 for me.

 

[Flash Gordon]

www.autogeekonline.net/forum/auto-detailing-university/29186-machine-stroke-how-effects-sanding-polishing-performance.html

This article you may find intriguing ^

 

[Dan Ruddock]

www.autogeekonline.net/forum/auto-detailing-university/29186-machine-stroke-how-effects-sanding-polishing-performance.html

This article you may find intriguing ^

Hey thanks, That is the kind of stuff I was looking for. I love techy stuff because sometimes I obsess with knowing how every thing works. I guess the GG spins better mainly because of the extra power. Dan

 

[Flash Gordon]

Hey thanks, That is the kind of stuff I was looking for. I love techy stuff because sometimes I obsess with knowing how every thing works. I guess the GG spins better mainly because of the extra power. Dan

Cool

If you'd like, you can email Kevin @ [email protected] for a pdr version. If you have any questions after reading, email him back for the answers

You will find no one more knowledgable of the inner workings of a DA IMO :buffing:


Glad you enjoyed,


Flash

P.S. Actually, just because it spins faster doesn't necesarally means it corrects better. This is according to Kevin. Sometimes, I just read his articles for hours in utter amasement. Go take a leak, get your favorite beverage and let your mind get lost in this too :cheers:

 

[tuscarora dave]

Cool

If you'd like, you can email Kevin @ [email protected] for a pdr version. If you have any questions after reading, email him back for the answers

You will find no one more knowledgable of the inner workings of a DA IMO :buffing:


Glad you enjoyed,


Flash

P.S. Actually, just because it spins faster doesn't necesarally means it corrects better. This is according to Kevin. Sometimes, I just read his articles for hours in utter amasement. Go take a leak, get your favorite beverage and let your mind get lost in this too :cheers:

Kevin's writings and illustrations were the first thing that i thought of when I read the OP's first post in this thread.

 

[Dan Ruddock]

Kevin's writings and illustrations were the first thing that i thought of when I read the OP's first post in this thread.

Thanks for the kind welcome guys. I am new to this but I have learned a lot already. If a DA had zero offset it would not spin as soon as it touched a surface. Dan

 

[WRAPT C5Z06]

or flex 3401

I respectfully disagree. The throw of the Flex 3401 is 8mm = 5/16". No sure where the notion comes from that the 3401 has a larger orbit compared to the traditional DA's?

 

[tuscarora dave]

I respectfully disagree. The throw of the Flex 3401 is 8mm = 5/16". No sure where the notion comes from that the 3401 has a larger orbit compared to the traditional DA's?

the 3401 is a completely different mechanical concept though.

The 3401 doesn't have a traditional style of orbit which is why I didn't mention it in my first reply of this thread. Hold your Flex 3401 in your lap, backing plate side up and with a tape measure, measure the distance of the stoke in each direction as you turn the backing plate by hand. You'll find that there are 20 or 10 movements per each circular rotation of the backing plate, (depending on whether you consider each movement as a stroke or as an orbit) the full measurement of the movement from one side to the next is a distance that is greater than 8MM.

It is a difficult concept for me to grasp but somehow because of the gear set above the backing plate the the 3401's movement can't technically be considered a true orbit.

As soon as Doug mentioned the 3401 I figured a debate would ensue. Honestly I am not a smart enough guy to explain it so I'll hold out for a mechanical engineer type of guy to chime in to explain the concept.

 

[dougaross]

I respectfully disagree. The throw of the Flex 3401 is 8mm = 5/16". No sure where the notion comes from that the 3401 has a larger orbit compared to the traditional DA's?

I stand corrected