Callier-Scollard Violins
Craig Scollard

50 E. Green St. Suite 142
Pasadena, CA 91105
(626) 795-2870

Mon, Tue, Wed 10:00-1:00.
Thu, Fri, Sat 2:00 to 5:00

Intercom Access Code, Press:
142 and then the CALL button:

Bow Frog Repair Methods

Sometimes when you are rehairing a bow, you remove the ring off a frog and there is nothing holding the broken tongue together. Where there is a large crack surface area it can be glued back together.

IMG 20200904 142156 3

IMG 20200904 142156 3

IMG 20200904 142156 3
IMG 20200905 135720 2

IMG 20200905 135720 2

IMG 20200905 135720 2
 

 

The edge that holds the slide was broken off.

IMG 20200910 155106 9

IMG 20200910 155106 9

IMG 20200910 155106 9
IMG 20200910 173355 4

IMG 20200910 173355 4

IMG 20200910 173355 4
IMG 20200911 143224 4

IMG 20200911 143224 4

IMG 20200911 143224 4
IMG 20200911 150035 9

IMG 20200911 150035 9

IMG 20200911 150035 9
 
IMG 20200911 150041 3

IMG 20200911 150041 3

IMG 20200911 150041 3

 

This frog's tongue broke off. Here is one way to do it without inlaying in a new piece of ebony.

IMG 20200610 100509 4

IMG 20200610 100509 4

IMG 20200610 100509 4
IMG 20200611 141939 4

IMG 20200611 141939 4

IMG 20200611 141939 4
IMG 20200612 142302 7

IMG 20200612 142302 7

IMG 20200612 142302 7
IMG 20200612 143357 2

IMG 20200612 143357 2

IMG 20200612 143357 2
IMG 20200612 145400 7

IMG 20200612 145400 7

IMG 20200612 145400 7
 

 

This is a nice ebony and silver Hill bow. The back of the mortice broke away. This is the first time I have ever seen this type of break.

IMG 20200610 102925 6

IMG 20200610 102925 6

IMG 20200610 102925 6
IMG 20200610 101824 0

IMG 20200610 101824 0

IMG 20200610 101824 0
IMG 20200610 102925 6

IMG 20200610 102925 6

IMG 20200610 102925 6
IMG 20200610 105128 0

IMG 20200610 105128 0

IMG 20200610 105128 0
IMG 20200611 151331 1

IMG 20200611 151331 1

IMG 20200611 151331 1
IMG 20200613 155338 6

IMG 20200613 155338 6

IMG 20200613 155338 6

 

Here is a frog that I repaired about 10 years ago. The surface area of the crack is very small, so I needed file a 1/2 round slot in the tongue and insert a stainless steel pin. I have rehaired this bow many times since the repair.

IMG 20200716 154810 6

IMG 20200716 154810 6

IMG 20200716 154810 6
IMG 20200716 155222 7

IMG 20200716 155222 7

IMG 20200716 155222 7
 

 

This is a Chinese bow with an abalone lined from. These frogs are made in China and they have a nice look. The only problem is when you try to rehair the bow. Basically the inside of the frog is a plastic or resin material and the block hole is very tiny. The two sides are faced with abalone, but whatever type of glue they use does not hold. Sometimes once you take the ring off, both sides of the frog basically fall off. Then they need to be reglued back onto the center core of the frog.

IMG 20161125 143140

IMG 20161125 143140

IMG 20161125 143140
IMG 20161125 143149

IMG 20161125 143149

IMG 20161125 143149
IMG 20161129 110718

IMG 20161129 110718

IMG 20161129 110718
IMG 20161129 110745

IMG 20161129 110745

IMG 20161129 110745
  

 


IMG 20180604 102018

IMG 20180604 102018

IMG 20180604 102018
IMG 20180604 104417

IMG 20180604 104417

IMG 20180604 104417
IMG 20180606 103659

IMG 20180606 103659

IMG 20180606 103659
IMG 20180608 143501

IMG 20180608 143501

IMG 20180608 143501
IMG 20180609 170649

IMG 20180609 170649

IMG 20180609 170649
 

 

Here is a frog where the tongue was missing. About a year ago when I rehaired the bow there was no tongue, since it was an inexpensive bow, I casted a new tongue and glued it on. Recently the bow came back for rehair and from the outside everything looked ok, but when I took it apart, the replacement tongue was no longer attached. I reglued the tongue and this time added a thin strip of fiber that stretches from the cast piect into the frog. This seems very solid, but time will tell if it holds up till the next rehair and beyond.

IMG 20220118 113331 705

IMG 20220118 113331 705

IMG 20220118 113331 705
IMG 20220118 113352 250

IMG 20220118 113352 250

IMG 20220118 113352 250
 

 

Another frog that's completely missing the tongue.

IMG 20220426 122843 364

IMG 20220426 122843 364

IMG 20220426 122843 364
IMG 20220426 133444 397

IMG 20220426 133444 397

IMG 20220426 133444 397
IMG 20220427 092031 031

IMG 20220427 092031 031

IMG 20220427 092031 031

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