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Rib thickness scribing tool

 
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Terryfromok
Junior Member


Joined: 25 Oct 2010
Posts: 3
PostPosted: Fri Oct 26, 2012 6:24 pm    Post subject: Rib thickness scribing tool Reply with quote
I am wanting to make the tool, pictured in Michael Darnton's website where he is making a viola, that scratches lines in ribs at a set thickness. Anybody know how long the tool is?

Thanks for all answers in advance,

Terryfromok
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Michael Darnton
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Joined: 23 Mar 2007
Posts: 1347
Location: Chicago
PostPosted: Fri Oct 26, 2012 6:52 pm    Post subject: Reply with quote
Here's one like mine in use.
http://www.youtube.com/watch?v=bHo2WVJi9pc

To do ribs, you hold the handle down, and pull the rib through, leaving long deep scratches.
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new blog at my site! http://darntonviolins.com/blog
my work sites: http://darntonviolins.com and http://darntonhersh.com
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Terryfromok
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Joined: 25 Oct 2010
Posts: 3
PostPosted: Fri Oct 26, 2012 8:13 pm    Post subject: Thickness scribing tool Reply with quote
Thank you.
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actonern
Super Member


Joined: 15 Aug 2007
Posts: 444
PostPosted: Fri Oct 26, 2012 10:41 pm    Post subject: Reply with quote
David:

Do you use a punch for the top or use a backlight?

Best regards,

E
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actonern
Super Member


Joined: 15 Aug 2007
Posts: 444
PostPosted: Sat Oct 27, 2012 5:36 am    Post subject: Reply with quote
OUCH!

I meant "Michael": Do you use this tool on the top plate or use a backlight...

Distracted posting never works!

E
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Michael Darnton
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Joined: 23 Mar 2007
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Location: Chicago
PostPosted: Sat Oct 27, 2012 7:38 am    Post subject: Reply with quote
I don't use a backlight.
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new blog at my site! http://darntonviolins.com/blog
my work sites: http://darntonviolins.com and http://darntonhersh.com
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Janito
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Joined: 08 Oct 2007
Posts: 114
Location: USA
PostPosted: Sat Oct 27, 2012 8:32 am    Post subject: Reply with quote
actonern wrote:
David:

E


"Best slip 2012"

There is an 'edit' option. Very Happy
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kubasa
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Joined: 13 Sep 2007
Posts: 212
PostPosted: Mon Oct 29, 2012 9:25 pm    Post subject: Reply with quote
Terryfromok - I built one of these tools based on Michael's photo and another drawing I came across somewhere. I think you asked how wide the opening was and the opening on mine ended up being 35cm or about 14" across inside. For ribs it works great but I suppose that I wouldn't be able to shove a cello plate though it to set the depth like in the video. It's a nice tool to have though and sure speeds up rib processing!
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