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PostPosted: Sun Jul 30, 2017 10:06 pm 
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Joined: Sun Jun 25, 2017 3:58 pm
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Location: St. Louis area
Can a porter cable 333 random orbit sander with 220 be used on top and back ( bare wood surface prep- just closed the box)? I would of course hand finish with 220 on a foam pad. Thank for any advise.

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PostPosted: Mon Jul 31, 2017 1:03 am 
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Joined: Sat Apr 10, 2010 10:50 pm
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Location: Seattle
I use a ROS all the time. I do not follow up with hand sanding. The ROS is designed not to leave long scratches. THere are areas that the my ROS will not reach I hand sand those.

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PostPosted: Mon Jul 31, 2017 4:56 am 
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Joined: Wed Aug 13, 2014 12:14 pm
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Sure -- why not?

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PostPosted: Mon Jul 31, 2017 6:40 am 
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Joined: Fri Mar 03, 2006 7:09 pm
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Location: Hegins, Pa
the only advice is to turn it on , on the guitar don't turn it on then set it on as it will leave a mark.
I use ROS I will use 120 to start then 150 220 by hand

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PostPosted: Mon Jul 31, 2017 11:27 am 
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Joined: Sat Feb 09, 2008 8:06 pm
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Location: Visalia, CA
I use one too. BUT........watch yourself, they can take wood away very quickly. I had a friend who this happened to once, he went almost all the way through the side and had to start over on his guitar. :) And he had already built 12 guitars.


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PostPosted: Mon Jul 31, 2017 12:01 pm 
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Joined: Wed Jul 02, 2014 12:56 pm
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An accessory I find indispensable for any ROS is a foam interface pad, for the waist.

https://www.amazon.com/Mirka-9155RP-5-I ... B001BKXWE4

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Homestead Finishing Products
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PostPosted: Mon Jul 31, 2017 11:55 pm 
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Joined: Sun Jun 25, 2017 3:58 pm
Posts: 189
Location: St. Louis area
jbjewitt wrote:
An accessory I find indispensable for any ROS is a foam interface pad, for the waist.

https://www.amazon.com/Mirka-9155RP-5-I ... B001BKXWE4


Thank you! Mine will be here Wednesday. What kind of life do you get from this pad? I even have a abranet sample pack I forgot about...

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Karl B


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PostPosted: Tue Aug 01, 2017 8:47 am 
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Depends on the use. I get several years at least.

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Homestead Finishing Products
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PostPosted: Thu Aug 03, 2017 9:23 am 
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I use the ROS on all of my guitars to sand off all obvious marks to 120g. Then I hand sand 220 to 320g.


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PostPosted: Thu Aug 03, 2017 11:06 pm 
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Joined: Sun Jun 25, 2017 3:58 pm
Posts: 189
Location: St. Louis area
Kbore wrote:
jbjewitt wrote:
An accessory I find indispensable for any ROS is a foam interface pad, for the waist.

https://www.amazon.com/Mirka-9155RP-5-I ... B001BKXWE4


Thank you! Mine will be here Wednesday. What kind of life do you get from this pad? I even have a abranet sample pack I forgot about...


My " interface " pad came today, very nice! Could have been using this for years. Homestead should sell them!

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Karl B


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