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 Post subject: sander R/O
PostPosted: Fri Jan 06, 2023 5:54 pm 
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Koa
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Joined: Tue Jul 22, 2008 9:34 pm
Posts: 507
Location: ottawa, ontario, ca
First name: Mike
Last Name: McNerney
City: Ottawa
State: On
Country: Ca
Focus: Build
Status: Amateur
I am thinking about getting a 3" R/O sander (and maybe for buffing too) (and what size orbit is acceptable) so it's a bit easier to get in to the waist area. I don't have a large compressor so the palm style sanders, which would be my first choice, are probably not going to work for me unless someone has experience which this type using a smaller compressor.. As far as electric goes there are some cheaper ones by companies I've never heard of that I might consider. I'd like to hear from anyone that uses one or has another method for sanding & polishing the waist area

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 Post subject: Re: sander R/O
PostPosted: Fri Jan 06, 2023 10:05 pm 
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Brazilian Rosewood
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Joined: Wed Feb 20, 2008 9:12 pm
Posts: 6977
First name: Mike
Last Name: O'Melia
City: Huntsville
State: Alabama
Focus: Build
Status: Semi-pro
I have been down this rabbit hole so much. Mirka has what you need in the old style sander. 3", ROS, small stroke. I almost went that way until I found a solution with Festool (did not want air tools). For me it was 3mm stroke, 3" and 5". Festool has that. But I found very similar solutions with Mirka. Airflow is the key thing.

With Mirka, so much to look at. Self generating vacuum, non-vacuum. Ugh. But there are kits to convert. Here is the one I think you might like:

https://buymirka.com/collections/mr-san ... ro-mr-3sgv

2.5mm good for finish work, 5mm good for aggressive work.


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 Post subject: Re: sander R/O
PostPosted: Sat Jan 07, 2023 7:06 am 
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Joined: Fri Jul 10, 2009 4:44 am
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First name: colin
Last Name: north
Country: Scotland.
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Just a small question, for buffing a finish I was under the impression a larger orbit was the way to go.
I've been using a 12mm orbit DA polisher, like an Adams polisher.

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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


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 Post subject: Re: sander R/O
PostPosted: Sat Jan 07, 2023 8:49 am 
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Joined: Wed Oct 08, 2008 11:36 am
Posts: 7241
Location: Southeast US
City: Lenoir City
State: TN
Zip/Postal Code: 37772
Country: US
Focus: Repair
I’ve got the Festool RO90. It’s a 3 1/2”. It works for me and I found I use it more than I expected. Too bad Festool tools are so so expensive.

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Steve Smith
"Music is what feelings sound like"


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 Post subject: Re: sander R/O
PostPosted: Sat Jan 07, 2023 9:00 am 
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Old Growth Brazilian Rosewood
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Posts: 12973
Location: Ann Arbor, Michigan
First name: Hesh
Last Name: Breakstone
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State: Michigan
Country: United States
Status: Professional
My Festool cordless drill and 5" ROS and big-arse dust "extractor" are all 17 years old now and they have all performed beautifully and in a commercial environment too.

Dave prefers less expensive drills and he's gone through three of them to my single Festool making mine less expensive. ;). I have had to replace the battery and check this out the original charger that came with my drill was engineered to be forward compatible with battery tech changes and advances. So when I purchased my single replacement battery the charger still works great with it and it's also 17 years old.

Good stuff

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These users thanked the author Hesh for the post: Durero (Sat Jan 07, 2023 5:29 pm)
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 Post subject: Re: sander R/O
PostPosted: Sat Jan 07, 2023 12:31 pm 
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Brazilian Rosewood
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Joined: Wed Feb 20, 2008 9:12 pm
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First name: Mike
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Colin North wrote:
Just a small question, for buffing a finish I was under the impression a larger orbit was the way to go.
I've been using a 12mm orbit DA polisher, like an Adams polisher.


In the sanding world, smaller orbit equals less aggressive. I have the Adams polisher too. And if you are using the glaze like me, you know that it has almost no buffing grit. But, I cannot exactly answer your question. Maybe someone who understands car buffing can.


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 Post subject: Re: sander R/O
PostPosted: Sat Jan 07, 2023 12:36 pm 
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Brazilian Rosewood
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Joined: Wed Feb 20, 2008 9:12 pm
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First name: Mike
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State: Alabama
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SteveSmith wrote:
I’ve got the Festool RO90. It’s a 3 1/2”. It works for me and I found I use it more than I expected. Too bad Festool tools are so so expensive.


That is the one I am getting (working sides of guitars). 125 ETS for the rest. Both have 3mm orbit. The RO90 worries me with that rotex setting. In Rotex mode, it becomes a beast. Gonna tape mine lol!


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 Post subject: Re: sander R/O
PostPosted: Sat Jan 07, 2023 2:40 pm 
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Joined: Wed Oct 08, 2008 11:36 am
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Location: Southeast US
City: Lenoir City
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Zip/Postal Code: 37772
Country: US
Focus: Repair
Was just using it in that aggressive
Mode. It is a beast but the selector is well marked and it doesn’t move easily.


Steve

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These users thanked the author SteveSmith for the post: Hesh (Sun Jan 08, 2023 3:36 am)
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 Post subject: Re: sander R/O
PostPosted: Mon Jan 09, 2023 7:38 am 
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Koa
Koa

Joined: Tue Jul 22, 2008 9:34 pm
Posts: 507
Location: ottawa, ontario, ca
First name: Mike
Last Name: McNerney
City: Ottawa
State: On
Country: Ca
Focus: Build
Status: Amateur
I'm much closer to the end of my career and can't see spending the money for festool or mirka as much as I would like to. I will probably try the cheapo zota or manusage maybe a metabo at 280. do you need interface pads in the waist area for fine sanding & polishing.

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 Post subject: Re: sander R/O
PostPosted: Mon Jan 09, 2023 11:33 am 
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Cocobolo
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Joined: Sat Feb 02, 2008 12:15 pm
Posts: 474
Location: Santa Barbara, Ca
First name: John "jd"
City: Santa Barbara
State: Ca
Focus: Build
Status: Semi-pro
I have the 90mm metabo. Nice sander with excellent dust collection when connected to a vacuum.
Only down side is the grip is on the large side.
I use a soft pad when sanding anything that is not flat.


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