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turkish bow project

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DC:

--- Quote from: gorazd on April 22, 2017, 06:11:58 pm ---
--- Quote from: DC on April 22, 2017, 12:27:49 pm ---Is there a trick to getting the teeth so evenly spaced? Or is it just talent?

--- End quote ---

No special tricks , only Good file and gentle moves... I use ski files...
I find nice saw blade with 10 teeth per 2cm ... I filed only one side of the teeth - and counted file moves - 3 moves of the file and the side of the tooth gone from 90 degree to 45 degree angle...only some correction were needed - pretty quick job - maybe half an hour

--- End quote ---

Ahhh, so you're not making new teeth, you're modifying the existing ones! Sometimes I can be so slow. Thanks

BowEd:
gorazd....Yea that could just be the photo playing tricks.I used a recipricating saw blade.Around 12 grooves to the inch.Around 1/32" deep on the horn and core inner locking grooves too.Use a self made guide at first till the grooves get started.Some go with a lot more grooves.
I think your bow looks fine.Good luck.

mikekeswick:
I doubt the core will withstand the stresses.
why did you not bend in any kasan eye reflex? I presume you were worried about steaming the core?

gorazd:

--- Quote from: mikekeswick on April 24, 2017, 03:21:58 am ---I doubt the core will withstand the stresses.
why did you not bend in any kasan eye reflex? I presume you were worried about steaming the core?

--- End quote ---


I got the bamboo for free so I started to experiment with it 2 years ago...

With this turkish bow:
I did some bending of the core - but dry heat, but only in kasan area and not the sal. I thought that would be ok that.
Steam bending will destroy the bamboo floring  I think  - so I didnt even  try this.


I choosed the bamboo flooring core because I have some positive experience with it.
I tried it before in one epoxy laminate bow (carbon lam + 5mm bamboo core + Gordon glass laminate). I saw that people use the same lam with good success in laminate bows using as core...

The core thickness in my turk bow is only 2.4mm - 4.5mm. The bending part with 2.4mm core  thickness is over 10cm in length.

I did some testing with bending the bamboo flooring lam (same thickness - 2,4mm) and achieved the RADIUS of bending under 10cm without any damage.

So I hope it will held but cant be sure of course...
I have obtained some good looking maple boards and will try the next bow with maple too...

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