Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Sat Nov 23, 2024 5:57 am


All times are UTC - 5 hours





Post new topic Reply to topic  [ 19 posts ] 
Author Message
 Post subject:
PostPosted: Sun Jan 30, 2005 6:21 am 
Offline
Koa
Koa

Joined: Wed Dec 29, 2004 3:25 am
Posts: 886
Location: United States
OK Gang...

I've been using three types of sanders in my work:

1. A belt sanding station for timming necks and other things (actually I have two, one big and one little for for doing trim).

2. A Bosch 5" ROS that I use for sanding out tops after they come out of the thickness sander.

3. Lots and lots of cork blocks, rubber molds for doing waists etc etc...

So my question is twofold...

a. What are the rest of you using to do things like sand the body?

b. Is there a sander that you could use safely on the waist and especially on a florentine?

I'd love to speed up my finishing process, but ROS sanders are normally made for one thing: to remove material and to be honest that's not my goal.

The 5" is great but it's a little too much for a delicate guitar and I've never seen one that would curve into a waist. I'm especially interested in finding something that I could use to sand in a florentine and smooth that area out, right now I'm just using an autobody rubber mold for it. It works but man is it a pain..

Advice?

Thanks

-Paul-

_________________
-Paul-
Image
Patriot Guitars


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jan 30, 2005 6:21 am 
Offline
Koa
Koa
User avatar

Joined: Mon Jan 03, 2005 2:40 am
Posts: 993
Location: United States
Does anybody have a good procedure or method for brushing lacquer? Remember the DIY show where Lynn D. brushed lacquer on his guitar, that's what I'm looking for. How thin do you need the lacquer, how long between coats, how many coats, etc... Any advice would be greatly appreciated.

Thanks!

John


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jan 30, 2005 6:24 am 
Offline
Koa
Koa

Joined: Wed Dec 29, 2004 3:25 am
Posts: 886
Location: United States
Hey Brock..

Weird thing about this thread..

I posted a new thread on this topic and when I finished John's message was already there... WEIRD

Could it be that we chose the same topic name at the same time??

Just curious..

-Paul-

_________________
-Paul-
Image
Patriot Guitars


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jan 30, 2005 6:49 am 
Offline
Koa
Koa
User avatar

Joined: Mon Jan 03, 2005 2:40 am
Posts: 993
Location: United States
Hi Paul,

That definitly wasn't my topic name. I'm not sure how my question got in this thread. I'm going to try and repost with the correct title.

Cheers!

John


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jan 30, 2005 6:56 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Dec 29, 2004 5:10 am
Posts: 2020
Location: Argentina
I use a PC quarter sheet finishing sander, square base, from my carpentry days. I read where one old-timer liked to buy the really thick flipflops when they come out in the Spring. He then saws them to size in a bandsaw wraps sandpaper around them for jobs just like you are talking about, Florentine cutaways and waists, other than those areas, I get by fine with the PC.





Top
 Profile  
 
 Post subject:
PostPosted: Sun Jan 30, 2005 12:41 pm 
Offline
Old Growth Brazilian Rosewood
Old Growth Brazilian Rosewood
User avatar

Joined: Mon Dec 27, 2004 1:20 pm
Posts: 5915
Location: United States

You are right... that is a very odd beginning to this thread... Ghosts in the machine perhaps...

We will look into it.


_________________
Brock Poling
Columbus, Ohio
http://www.polingguitars.com


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 31, 2005 3:07 am 
Offline
Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
[QUOTE=John Elshaw] Does anybody have a good procedure or method for brushing lacquer? Remember the DIY show where Lynn D. brushed lacquer on his guitar, that's what I'm looking for. How thin do you need the lacquer, how long between coats, how many coats, etc... Any advice would be greatly appreciated.

Thanks!

John[/QUOTE]

John the best tip I can give for brushing on lacquer is buy several very high dollar China brissel brushes. Get the best. you get what you pay for. A high quality China brissel Will not shed and this is one of the major pitfalls of brushing. I would always use a different cleaned brush between each session. This is why I said to buy several. Learning to allow the medium to flow off the brush and not be painted on by the brush makes all the difference. Never ever back brushing is also a major key.


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 31, 2005 3:47 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Tue Jan 04, 2005 1:43 am
Posts: 1524
Location: Morral, OH
Hi Bruce: I have a PC sander like you have pictured. IMHO it isn't the best to use them for fine finish sanding even though it is a "finish sander". It leaves teeny weeny circular scratches that the Random Orbital sanders don't leave. You have to look very close but they are there.

_________________
tim...
http://www.mcknightguitars.com


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 31, 2005 4:39 am 
Offline
Koa
Koa

Joined: Wed Dec 29, 2004 3:25 am
Posts: 886
Location: United States
So tim what are you using then?

I'd love to find something small and *not* powerful to flatten finishes. I do it by hand now because I can maintain a fine control over the process...

-Paul-

_________________
-Paul-
Image
Patriot Guitars


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 31, 2005 4:51 am 
Offline
Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
I have seen a 3" pneumatic RO sander before but I have been unable to locate one. I would almost kill to have one. I use a combination of hand and my 5" RO with micro-mesh pads to final level with. hand work is on the sides and neck only the 5" RO does great on top and back.


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 31, 2005 5:00 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Dec 29, 2004 5:10 am
Posts: 2020
Location: Argentina
Hmmm, I've not noticed them. The RPM on mine is about 12,000 OPM. Just haven't seen any since I went to this unit. I had an old 4,000 OPM unit of Black and Decker, now that thing left so many circles it look like aliens had landed in and left crop circles..... grin. I'll look the next seven over really good, may have to cough up some cash for a Dynorbital sander, I've wanted ever since Hoffman said it was his all time favorite tool... Like I said, I get by with the PC.... after Brock sent me the Ryan download using the sander on the neck, I'm beginning to wonder if I'm underfunded.....


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 31, 2005 12:00 pm 
Offline
Old Growth Brazilian Rosewood
Old Growth Brazilian Rosewood
User avatar

Joined: Mon Dec 27, 2004 1:20 pm
Posts: 5915
Location: United States
[QUOTE=MichaelP] I use a combination of hand and my 5" RO with micro-mesh pads... [/QUOTE]

Did you say Micro Mesh Pads for a 5" RO? I have been longing for something like this!! .... where can such a product be found?

bpoling38383.8338194444

_________________
Brock Poling
Columbus, Ohio
http://www.polingguitars.com


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 31, 2005 1:09 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Tue Jan 04, 2005 1:43 am
Posts: 1524
Location: Morral, OH
Paul:

I am using a DeWalt 5" RO for 95% of my sanding. The other 5% is by hand.

_________________
tim...
http://www.mcknightguitars.com


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 31, 2005 2:29 pm 
Offline
Koa
Koa

Joined: Wed Dec 29, 2004 3:25 am
Posts: 886
Location: United States
I want something smaller..

Bruce...

Anything that Grizzly catalog like that??

Gotta order one of those tonight...

-Paul-

_________________
-Paul-
Image
Patriot Guitars


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 31, 2005 3:35 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Dec 29, 2004 5:10 am
Posts: 2020
Location: Argentina
McKenzie went to Mexico, but he bought a two inch ROS before he left. I think. Don't hold me to it. You could search for McKenzie or ros?

Grizz has only 5" ROS and 1/4 Sheet air sanders.Dickey38383.9886111111


Top
 Profile  
 
 Post subject:
PostPosted: Tue Feb 01, 2005 1:23 am 
Offline
Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
[QUOTE=bpoling] [QUOTE=MichaelP] I use a combination of hand and my 5" RO with micro-mesh pads... [/QUOTE]

Did you say Micro Mesh Pads for a 5" RO? I have been longing for something like this!! .... where can such a product be found?

[/QUOTE] Brock you can get them from www. micro-surface.com 5" no-hole (I cut my own holes with a leather punch) hook and loop variety pack 1500 thru 12000 for $13.00MichaelP38384.395162037


Top
 Profile  
 
 Post subject:
PostPosted: Tue Feb 01, 2005 1:41 am 
Offline
Old Growth Brazilian Rosewood
Old Growth Brazilian Rosewood
User avatar

Joined: Mon Dec 27, 2004 1:20 pm
Posts: 5915
Location: United States

Awesome.... Thanks!! ...   

_________________
Brock Poling
Columbus, Ohio
http://www.polingguitars.com


Top
 Profile  
 
 Post subject:
PostPosted: Tue Feb 01, 2005 2:20 am 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Thu Jan 06, 2005 7:29 am
Posts: 3840
Location: England
My Bosch ROS runs at 5000 - 16000 opm, for sanding wood smooth it is the finest power tool I have ever found. Anyone who doesn't have one or similar in their shop is just making themselves work. That, a bench disc/belt sander and papers on a variety of shaped hard closed cell foam blocks and I can smooth or shape just about everything I need.

By the way, when I built my 7-course lute I wanted to do the whole thing as authentically as possible. They didn't have sandpapers and power tools when these were originally built so I used only scrapers and shagreen (dried sharkskin) to smooth surfaces they worked really well but, they kind of make you appreciate modern technology.

Colin

_________________
I don't believe in anything, I simply make use of a set of reasonable working hypotheses.


Top
 Profile  
 
 Post subject:
PostPosted: Tue Feb 01, 2005 3:37 am 
Offline
Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
Heck I remember my grandfather hand sanding cabinets with AA, AAA, and AAAA dry pumice. Talk about work. But you know we still have the Dinning set he made for my grandmother before their wedding. It was built with out any power tools except a band saw. The finish is goat urine stained Pecan and French Polished. It has some dings and wear marks from 75 years of use but the base surface is as flat and smooth as any I have seen machine planed. Of course he worked for three years on it, so my grandmother tells me.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 19 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 45 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com