Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Tue Aug 12, 2025 12:25 am


All times are UTC - 5 hours


Forum rules


Be nice, no cussin and enjoy!




Post new topic Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Mon Oct 04, 2010 10:40 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Oct 22, 2008 9:31 pm
Posts: 1877
First name: Darryl
Last Name: Young
State: AR
Country: USA
Focus: Build
Status: Amateur
Can a good buffing machine be built from one of What are your thoughts on using one of these units from Grizzly to build a buffing machine?

Image

What size shaft do most of you use? (I could get 1/2", 5/8". or 3/4")

I have a small motor I could use that pulls 3 or 4 amps. Think that is enough for a loose belt setup? Where is a good source with a good selection of pulley sizes to control the rotational speed?

Thanks!

_________________
Formerly known as Adaboy.......


Top
 Profile  
 
PostPosted: Tue Oct 05, 2010 5:28 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Aug 31, 2005 7:30 am
Posts: 1792
Location: United States
You need much longer shafts, particularly to buff the sides.

_________________
Laurent Brondel
West Paris, Maine - USA
http://www.laurentbrondel.com/


Top
 Profile  
 
PostPosted: Tue Oct 05, 2010 5:41 am 
Offline
Koa
Koa
User avatar

Joined: Sat Mar 07, 2009 7:56 am
Posts: 1825
Location: Grover NC
First name: Woodrow
Last Name: Brackett
City: Grover
State: NC
Zip/Postal Code: 28073
Country: USA
Focus: Build
There's some good pictures and info in this thread.

http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=28825&hilit=buff

_________________
I didn't mean to say it, but I meant what I said.
http://www.brackettinstruments.com/


Top
 Profile  
 
PostPosted: Tue Oct 05, 2010 5:57 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Mon Jan 28, 2008 5:21 am
Posts: 4915
Location: Central PA
First name: john
Last Name: hall
City: Hegins
State: pa
Zip/Postal Code: 17938
Country: usa
Focus: Build
Status: Professional
you can use this uniit , it isn't that expensive .
http://www.grizzly.com/products/Buffing-Assembly/H3559

_________________
John Hall
blues creek guitars
Authorized CF Martin Repair
Co President of ASIA
You Don't know what you don't know until you know it


Top
 Profile  
 
PostPosted: Tue Oct 05, 2010 8:12 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Oct 22, 2008 9:31 pm
Posts: 1877
First name: Darryl
Last Name: Young
State: AR
Country: USA
Focus: Build
Status: Amateur
That's a great suggestion John, thanks. Thanks Laurent for pointing out the flaw with the width.

Any suggestions on a source of pulleys of various diameter to control the rotational speed of the shaft? I will check out the thread suggested by Woody, thanks.

_________________
Formerly known as Adaboy.......


Top
 Profile  
 
PostPosted: Tue Oct 05, 2010 8:42 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Aug 31, 2005 7:30 am
Posts: 1792
Location: United States
The Shop Fox buffer suggested by John is what I use with an old Delco 1/4HP 1725rpm motor and 12" wheels. The buffer already has 3 pulleys.

_________________
Laurent Brondel
West Paris, Maine - USA
http://www.laurentbrondel.com/


Top
 Profile  
 
PostPosted: Tue Oct 05, 2010 11:22 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Mon Jan 28, 2008 5:21 am
Posts: 4915
Location: Central PA
First name: john
Last Name: hall
City: Hegins
State: pa
Zip/Postal Code: 17938
Country: usa
Focus: Build
Status: Professional
I did similar but have a 16 and 12inch wheel on mine. The 1/4 hp is plenty and it won't throw the guitar out of your hands like more powerful buffers. It isn't hard to set up.

_________________
John Hall
blues creek guitars
Authorized CF Martin Repair
Co President of ASIA
You Don't know what you don't know until you know it


Top
 Profile  
 
PostPosted: Tue Oct 05, 2010 1:48 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Oct 22, 2008 9:31 pm
Posts: 1877
First name: Darryl
Last Name: Young
State: AR
Country: USA
Focus: Build
Status: Amateur
Ok, thanks.

Looking at older posts, it seems most folks are running from 500in/sec - 700in/sec at the edge of the buffing wheel. Seems slower for lacquer/varnish and a little faster for polyester. So does the surface speed depend on the hardness of the finish? I will be using KTM-SV (a water based, cross linked urethane) which supposedly is a little harder than lacquer. So I'm wondering what speed would work well. If I err on the slow side, what will it hurt? Just take longer to buff or will it not do as good a job?

_________________
Formerly known as Adaboy.......


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: Bing [Bot] and 42 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