Forced rotation or RO? - Makita BO6040

M

moogoob

New member
Hello,



Will one mode or the other yield different results? I know the forced rotation can be more aggressive, but is the RO mode better for finishing?



thanks,

robb
 
if you're looking to get into machine polishing for the first time and price isn't a issue (around $280), check out the Flex 3401. do a search and you'll find lots of great info on it...
 
I already have the makita. the BO6040 is a two mode machine: RO or RO with forced rotation.



Makita BO6040 6" Variable Speed Random Orbit Sander Kit



bo6040.jpg
 
^^^ Thanks, I'll check em out.



But not even machine specific, since there are similar machines like the one from festool.



Can you get a glossier finish in one mode or the other?
 
Well, the adds say forced rotation for "aggressive" and RO for "finish".



While this holds true using sandpaper against wood, I'm just no sure it's the same for polishing paint.



I guess that the FR mode can achieve more correction due to its "aggressiveness", but I'm not so sure its the same as a rotary because it doesnt get to the same speeds. And the question remains, (worded a bit differently) does the RO mode make for a better finish, just because its less "aggressive"?



Thanks Guys, I really appreciate the input.



Robb
 
moogoob said:
Well, the adds say forced rotation for "aggressive" and RO for "finish".



While this holds true using sandpaper against wood, I'm just no sure it's the same for polishing paint.



I guess that the FR mode can achieve more correction due to its "aggressiveness", but I'm not so sure its the same as a rotary because it doesnt get to the same speeds. And the question remains, (worded a bit differently) does the RO mode make for a better finish, just because its less "aggressive"?



Thanks Guys, I really appreciate the input.



Robb
Click to expand...





I know what you are asking, but it is too much of a "loaded question". A novice can get a better finish with a PC than with a forced rotation machine or a rotary. An experienced pro can often get a better finish (more gloss) with a rotary than a PC.



Too many variables - experience, pads, polishes, paint type, etc...
 
I think everything is loaded question with too many variables, especially skill.



I'll try to De-load it a bit. Lets stick to the machines that have FR+RO and leave out rotary and RO onlys. I think Makita, Bosche, and festool make em.



The Flex is forced rotation only (I think)



As for the skill variable, lets shoot for a high skill level as it gives me something to shoot for :)



example: I have the makita, IP and FPII, and white and orange pads.

I'd use FR, IP, Orange pad to do the heaviest of corrections with what i have in my arsenal.



Next, Switch to FPII and a white pad to finsih. Would I continue to use FR or use RO to get the most gloss?
 
BigJimZ28 said:
that is prob. true but have you used the machine he is talking about?

if not how do you know?:nixweiss
Click to expand...



I was thinking it as a general question. I wasn't paying attention...........:doh
 
moogoob said:
Would I continue to use FR or use RO to get the most gloss?
Click to expand...



I don't think it matters which you use so long as the combo used (pad, product and process) doesn't mar the paint, which isn't easy to do in FR mode and near impossible in RO mode.



You can only get the paint as glossy as the pad/product combo will allow. Process (Rotary, FR or RO) dictates aggressiveness and cut, not end gloss.



Personally I only use the 6040 as a RO machine for finish polishing and leave correction work to the rotary.



With what you have to work with the FR mode along with a white pad & FPII will probably yield more gloss because of the additional cut. If you were to use that process on paint that was previously leveled with a rotary I don't think the FR would give you any added gloss over RO mode.
 
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