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Hold my hand when I sinew my first bow

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jameswoodmot:
So my laminates have started over as I found out the hard way my cascamite had gone off and my yew is still drying. My 100lb roving bow still isn’t down to low enough moisture so I started another bow!

I’ve been waiting for the right elm stave to practice sinew backing. This one is 43” from the top of a sapling I took down. 1 5/8” in the middle down to 1” at the tips

Gave it a cook over coals, it’s ready for a short string.

It’s got a little bit of snakeiness and a little knot in the middle and quite high crown. Are these likely to cause an issue?

My tendons are roe deer leg tendons so pretty short but it’s all I can get.

Any suggestions as to weight of sinew and how many layers? I know it’s an open ended question but it would be good to have a guide for the first one

jameswoodmot:
Little knot and the reflex

superdav95:
It’s a great candidate!   What are your longest strands?  I would lay down a brick pattern with shorter sinew strands.  This allows for staggered and methodical approach to laying it down.  I measure in dried pounded and stranded sinew bundles.  I then lay down either a single combed bundle premeasured by dry weight for each limb.  I save the shorter strands for over the handle area to overlap a bit.  The brick wall pattern would be good for shorter strands.   Ask away any questions. Lots of experience guys on here. 

bjrogg:
I’m going to be watching this one to. I still haven’t done a sinew backed bow. I know Dave knows a lot about not only applying it, but also preparing bow for it, making glue for it. And knowing how to use it all.

Bjrogg

jameswoodmot:
Thanks guys!

Averaging about 6-7” long, tearing it up now.

I’ve found if I shred it too much it starts to turn into a curly mess so I’ve left it slightly coarser.

Going to use commercial hide glue bought as dried granules.

I was thinking about tbb with the diagram of the brick pattern. Are two layers ok for this or would three thinner layers be better? I’m thinking also that because of the crown that perhaps applying slightly more to the centre of the crown and less to the outsides.

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