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Old 12-01-2012, 12:55 AM   #1
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1976 29' Ambassador
Madison , Officially SD but are traveling full time.
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Question about the Porter Cable random orbital

I bought a Porter Cable random orbital polisher. It looks like an angle grinder with a 7" polishing pad. The polishing pad stem is screwed into what looks like an eccentric mechanism that gives the pad a random orbital pattern. When the buffer pad is placed on the aluminum surface and the unit is turned on, the buffer pad does not rotate - it only "vibrates" in what I presume is a random pattern.

No one at Porter Cable is available until Monday. Question: Is the buffer pad supposed to rotate like an angle grinder as well as impose a random orbital pattern while polishing?
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Old 12-01-2012, 12:58 AM   #2
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If the Porter Cable polisher operates like a palm sander and does not rotate, is there a speed setting that is optimal for polishing?
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Old 12-01-2012, 03:14 AM   #3
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I have the same polisher. It is designed to rotate only under light pressure. This prevents burning or damaging the paint.
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Old 12-01-2012, 07:08 AM   #4
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I also have the PC orbital polisher. Use it for waxing/sealing all the toyz.
I don't think it would be the best choice for spit-shining an Airstream.
Haven't tried....but seems a little small.

I'm sure the "shiners" will chime in...

Bob
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