Sinew delamination/fracture how to repair?
I added a lot of sinew on one place of bow, because bow was bending too much, when "bending" backwards with sinew. I did this to correct potential problem.
I think because of the whiteness some of the new sinew has delaminated slightly while drying, despite the fact that I wrapped it with ace bandage. ( I think this may be due to too quick drying due to low ambient moisture at this time of year, combined the thickness of the layer. I did not bend the bow backwards at all this time.)
I want to repair it. Would it be possible heat and compress the sinew, or would moisture need to be added? If yes would it be possible to add moisture with for example wet toilet paper without detaching the horn under the wood.
The trivial thing would be to sand of everything until the delamination, but this would require adding new sinew and would waste the existing sinew.
I thought that I could compress it with electric iron. and wrap thighly for example with cable ties.
Any better ideas or practical experience?
Electric iron
[external image]
cable ties
[external image]
I'll add picture of the bow, once I have taken a photo about it.
I found Iron temperatures from Finnish wikipedia:
● cold (about 100 ?C)
●● warm (about 150 ?C)
●●● hot (about 200 ?C)
I am thinking of ●●
I think because of the whiteness some of the new sinew has delaminated slightly while drying, despite the fact that I wrapped it with ace bandage. ( I think this may be due to too quick drying due to low ambient moisture at this time of year, combined the thickness of the layer. I did not bend the bow backwards at all this time.)
I want to repair it. Would it be possible heat and compress the sinew, or would moisture need to be added? If yes would it be possible to add moisture with for example wet toilet paper without detaching the horn under the wood.
The trivial thing would be to sand of everything until the delamination, but this would require adding new sinew and would waste the existing sinew.
I thought that I could compress it with electric iron. and wrap thighly for example with cable ties.
Any better ideas or practical experience?
Electric iron
[external image]
![[external image]](https://upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Electric_iron_lie.jpg/220px-Electric_iron_lie.jpg){kind=link}
cable ties
[external image]
![[external image]](https://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Cable_ties.jpg/300px-Cable_ties.jpg){kind=link}
I'll add picture of the bow, once I have taken a photo about it.
I found Iron temperatures from Finnish wikipedia:
● cold (about 100 ?C)
●● warm (about 150 ?C)
●●● hot (about 200 ?C)
I am thinking of ●●
i had a problem like this, where the top layer of sinew delaminated from the first layer. i flooded it with hot hot glue then (as it was at the fades) i wrapped it in a thin layer of sinew, after pressing it down. That was a couple of months ago and the thing has stayed down...but i also haven`t finished tillering it yet, either.
Ottoman t?rkish bows calls for dipping into hot thing glue with alcohol added in it.
The problem is that I see no gaps that could accept that glue. I was also wondering if there really is a problem
Also I do not know any suitable container to do that in. Frying pan?
The problem is that I see no gaps that could accept that glue. I was also wondering if there really is a problem
Also I do not know any suitable container to do that in. Frying pan?
I'll post new as soon as i have time.
photoshopped version of bad image
Tried dipping into thin hot glue with alcohol (windshield cleaner) in it. Did not get into the fractures, but took some glue away.
Next attempt I made is that I put wet piece of cloth on sinew and wrapped it with plastic wrap for a day. The sinew was wetted anough the detach the outtest layers as I had wished. The sinew however looked too short and were attatched from both ends and were quite short.
I made a new wrap and detached the sinew until the end. Then I added hot glue and reglued the sinew. After it has gelled I wrapped it with rope and wrapped it with plastic wrap. Next morning I put some barbacue stics between rope and horn to make japaneses like tightening. I wapped again in plastic wrap, but added some puncture hole, to allow some drying.
Next attempt I made is that I put wet piece of cloth on sinew and wrapped it with plastic wrap for a day. The sinew was wetted anough the detach the outtest layers as I had wished. The sinew however looked too short and were attatched from both ends and were quite short.
I made a new wrap and detached the sinew until the end. Then I added hot glue and reglued the sinew. After it has gelled I wrapped it with rope and wrapped it with plastic wrap. Next morning I put some barbacue stics between rope and horn to make japaneses like tightening. I wapped again in plastic wrap, but added some puncture hole, to allow some drying.
Do not wrap with plastic. It started to smell slightly, so I took the plastic away and put it drying closet.
I notised that I had wrapped the rope too tightly and all the glue had been squeced away and the sinew while was thighly presses was not glued.
I did NOT take pictures from the too tightly wrapped sinew.
I should since failures should be more documented that succeses, since
they teach more.
I added dipped into glue and a added more with paint brush. Wrapped with ace pandage.
Now it finally looks still like properly glued.
I notised that I had wrapped the rope too tightly and all the glue had been squeced away and the sinew while was thighly presses was not glued.
I did NOT take pictures from the too tightly wrapped sinew.
I should since failures should be more documented that succeses, since
they teach more.
I added dipped into glue and a added more with paint brush. Wrapped with ace pandage.
Now it finally looks still like properly glued.