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grain orientation on plug

 
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Mat Roop
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Joined: 24 Mar 2007
Posts: 911
Location: Wyoming Ontario

PostPosted: Sun Apr 21, 2013 9:26 am    Post subject: grain orientation on plug Reply with quote

Been thinking... on the plugs for the mortise, I have always had the grain running parallel to the bow. But seems to me that if the grain were to run perpendicular, that might be a benefit because wood swells with humidity and moisture across the grain but not significantly along the grain. therefore there is less chance of splitting a cheek in the event that the head might get wet (as in someone trying to clean the hair).
Is there a disadvantage to this?

Cheers, Mat
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ctviolin
Super Member


Joined: 07 May 2009
Posts: 961
Location: Roswell

PostPosted: Sun Apr 21, 2013 10:12 am    Post subject: Re: grain orientation on plug Reply with quote

Mat Roop wrote:
Been thinking... on the plugs for the mortise, I have always had the grain running parallel to the bow. But seems to me that if the grain were to run perpendicular, that might be a benefit because wood swells with humidity and moisture across the grain but not significantly along the grain. therefore there is less chance of splitting a cheek in the event that the head might get wet (as in someone trying to clean the hair).
Is there a disadvantage to this?

Cheers, Mat


I've always had the grain running (in both of the plugs) along in the same direction as the grain in the bow also. (even the frog's wedge, it runs like that - not surprisingly)

As I was taught, and as I have seen other bow makers and re-hairers do.

So, I believe that probably it is the correct method generally accepted.

I don't believe that I would change any of the methods I have learned, in case of such an event (as, somone wetting the head) after which - the bow would not work correctly in any case.
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Mat Roop
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Joined: 24 Mar 2007
Posts: 911
Location: Wyoming Ontario

PostPosted: Sun Apr 21, 2013 5:18 pm    Post subject: Reply with quote

Thanks CT... I guess I was looking for a reason why the traditional is the way it is.... the only reason I can come up with is that if the grain is across the stick then the hair tension can collapse the edge of the plug leaving a gap where the hair exits the mortise... unless you use a hard maple plug.

What wood did the old masters like Tourte use for the plug?

Cheers, Mat
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ctviolin
Super Member


Joined: 07 May 2009
Posts: 961
Location: Roswell

PostPosted: Sun Apr 21, 2013 7:19 pm    Post subject: Reply with quote

Mat Roop wrote:


What wood did the old masters like Tourte use for the plug?

Cheers, Mat



I don't really know.

But would find the answer very interesting.
Plus, if they used the same grain orientation for the plugs as we do?

I'm going to assume that the frogs ferrule wedge was the same grain direction as today, but the rest?

Anyone?
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