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Rib scraping video - building new Negra flamenca   You are logged in as Guest
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estebanana

Posts: 9351
Joined: Oct. 16 2009
 

Rib scraping video - building new Ne... 
I'm building a new negra right now and the person who commissioned it ask that I make detailed notes on how some of the process works.

I don't currently have a drum sander so I thickness ribs the heave ho way with a plane. I made a video of scraping half a rib to a final rough thickness using a fixture that holds a scraper blade 2mm off an indexing block.

You just pass the rib under the stop and scrape just enough for it to pass under. Result is nice prepared rib on both sides dimensioned to an even 2mm. Ready to have any fine adjustment to flexibility done by feel. At this point I might go a little bit thinner at waist, or on a cutaway, but rib otherwise ready to bend.

I may build a dedicated rib drum sander next year, with big electric motor, nothing sadder than an underpowered rib sander.

Meanwhile I'm in good historical company with this method.

https://youtu.be/QpYYQzYh2RY

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  REPORT THIS POST AS INAPPROPRIATE |  Date May 21 2018 1:27:02
 
estebanana

Posts: 9351
Joined: Oct. 16 2009
 

RE: Rib scraping video - building ne... (in reply to estebanana) 
If anyone can repaste the video to play on the page here much appreciated..

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  REPORT THIS POST AS INAPPROPRIATE |  Date May 21 2018 1:32:48
 
Richard Jernigan

Posts: 3430
Joined: Jan. 20 2004
From: Austin, Texas USA

RE: Rib scraping video - building ne... (in reply to estebanana) 
  REPORT THIS POST AS INAPPROPRIATE |  Date May 21 2018 4:20:12
 
Leñador

Posts: 5237
Joined: Jun. 8 2012
From: Los Angeles

RE: Rib scraping video - building ne... (in reply to estebanana) 
Wow! That is gorgeous rosewood!
Is a machine planer not delicate enough for this?
A lot more interesting to watch hand planing I’m just curious.

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  REPORT THIS POST AS INAPPROPRIATE |  Date May 21 2018 6:10:48
 
RobF

Posts: 1611
Joined: Aug. 24 2017
 

RE: Rib scraping video - building ne... (in reply to estebanana) 
That indexing fixture is really cool. Clever, too. Also interesting is your collection of home made scrapers.
  REPORT THIS POST AS INAPPROPRIATE |  Date May 21 2018 8:56:33
 
estebanana

Posts: 9351
Joined: Oct. 16 2009
 

RE: Rib scraping video - building ne... (in reply to estebanana) 
Someone asked to show the how I made the fixture, it's pretty simple. I'll make a video about it.

The rosewood is about as good as any Indian rosewood I've seen these days.

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  REPORT THIS POST AS INAPPROPRIATE |  Date May 21 2018 9:50:35
 
JasonM

Posts: 2055
Joined: Dec. 8 2005
From: Baltimore

RE: Rib scraping video - building ne... (in reply to estebanana) 
Cool. I made a jig like this on a smaller scale for thicknessing veneer
  REPORT THIS POST AS INAPPROPRIATE |  Date May 23 2018 2:11:00
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