Violin Forum/Message Board Forum Index Violin Forum/Message Board
Provided by Violin Vision
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

working flamed maple

 
Post new topic   Reply to topic    Violin Forum/Message Board Forum Index -> Violin Making and Restoration Forum
View previous topic :: View next topic  
Author Message
kjb
Super Member


Joined: 06 Feb 2013
Posts: 385

PostPosted: Thu Mar 14, 2013 5:05 pm    Post subject: working flamed maple Reply with quote

when working with it it tends to have rolling hills on the harder flamed part, when scraping is there a technique that help prevent that. I am now just going 90 degrees to the hump to bring it down then with for finish . thanks
Back to top
View user's profile Send private message
kubasa
Member


Joined: 13 Sep 2007
Posts: 212

PostPosted: Thu Mar 14, 2013 8:46 pm    Post subject: Reply with quote

I'm thinking outloud here so this isn't necessarily advice. -- I don't know that I necessarily angle at 90 degrees when I'm trying to even out the hills and valleys. I think I do it at around 45 degrees.

Sometime ago, I think I remember Michael posting a photo of an older instrument with these hills and valleys on it. I have to wonder how common these waves were on older instruments.

James
Back to top
View user's profile Send private message Visit poster's website
TimRobinson
Junior Member


Joined: 02 Jul 2009
Posts: 4
Location: Sydney, Australia

PostPosted: Thu Mar 14, 2013 8:49 pm    Post subject: Reply with quote

kubasa wrote:
Sometime ago, I think I remember Michael posting a photo of an older instrument with these hills and valleys on it. I have to wonder how common these waves were on older instruments.

James


FWIW I have a Georg Leeb from 1785 with a nicely flamed one piece back. The undulations are quite distinct. I have often wondered if they increased with age.

Tim
Back to top
View user's profile Send private message
actonern
Super Member


Joined: 15 Aug 2007
Posts: 444

PostPosted: Thu Mar 14, 2013 9:39 pm    Post subject: Reply with quote

For me, working in angled sunlight is my best friend in this situation.

The sun throws such hard shadows that you can see the smallest undulation in stark relief. Then work the scrapers so that the hills are clipped off and the plate flat.

But I also think flat plates with a vigorous curl will re-introduce wavyness over time, particularly moving back and forth through humidity cycles.
Back to top
View user's profile Send private message
Janito
Member


Joined: 08 Oct 2007
Posts: 114
Location: USA

PostPosted: Thu Mar 14, 2013 10:02 pm    Post subject: Reply with quote

At the 2010 (?) VSA, there was a fantastic Burgess viola on display - amazing varnish on a super rippled back.

Embrace the ripple.
Back to top
View user's profile Send private message
kjb
Super Member


Joined: 06 Feb 2013
Posts: 385

PostPosted: Fri Mar 15, 2013 8:19 am    Post subject: Reply with quote

I was wondering if it enhanced the 3d effect
Back to top
View user's profile Send private message
actonern
Super Member


Joined: 15 Aug 2007
Posts: 444

PostPosted: Fri Mar 15, 2013 11:44 am    Post subject: Reply with quote

like this???

http://www.youtube.com/watch?v=iEnCKEfSgUM
Back to top
View user's profile Send private message
Michael Darnton
Moderator


Joined: 23 Mar 2007
Posts: 1347
Location: Chicago

PostPosted: Fri Mar 15, 2013 11:53 am    Post subject: Reply with quote

A lot of makers work hard to get that ripple. The easy way is wet the wood, then scrape with your scraper very vertical and in line with the curls so that it falls into them. Once you have a good crude ripple going you can go back and carefully smooth it.
_________________
new blog at my site! http://darntonviolins.com/blog
my work sites: http://darntonviolins.com and http://darntonhersh.com
Back to top
View user's profile Send private message Send e-mail Visit poster's website
kjb
Super Member


Joined: 06 Feb 2013
Posts: 385

PostPosted: Fri Mar 15, 2013 4:23 pm    Post subject: Reply with quote

ok I won't worry about getting rid of it. thanks
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Violin Forum/Message Board Forum Index -> Violin Making and Restoration Forum All times are GMT - 4 Hours
Page 1 of 1

 
Jump to:  
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 vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group