Main Discussion Area > Bows
About sinew. Pic heavy
superdav95:
Hey guys. Here a composite bow I’m working on currently while waiting on others to dry and materials for others nearing completion. It’s a bamboo horn sinew composite bow. It’ll be a somewhat Scythian style profile hopefully when done. It’s about 58”ntn. I stuck with slightly thicker bamboo core then the 1/3rd thickness on this one. It’s more like 40%. 30% horn 30% sinew. I did no pre tillering on this core as an experiment. Also testing out more crowned core prior to sinew. I did the 20tpi longitudinal grooves as I usually do but kept them shallow and clean. I did lots of size coats with very thin glue. Basically water with a little glue. Probably at least 10-12 coats or more. Just kept going till it was shiny when dry. I’d say 5% glue. I use a half and half mix of high strength hide glue and sturgeon bladder glue for sinew. For the horn I use mostly sturgeon glue. Longer gel time for horn glue up is nice.
So far I’ve got 2 layers of sinew totaling 75-80grams. I use horse leg wrap after a couple hours after laying sinew and gelled up good and firm. I let this sit for 3-4 hours then wrap in opposite direction and then leave sit over night. It’s got just the right amount of stretch and breath ability when using horse leg wrap. I use a straight stick and couple clamps to keep my tips aligned. I’ve had them dry and pull a bit wonky before. I’ll keep in creasing the reflex a little more on this one but it’s close to where I want it now. Couple of weeks for drying I imagine and will be ready for next stage. I’ll likley wrap with some thin rawhide. I suspect a peg board for this one will be needed.
Thanks for looking. Here’s some pics showing some of process in reverse order unfortunately. Hopefully it’s helps someone out there.
superdav95:
The next day after removing wraps off of second layer.
superdav95:
The horse leg wrap put on after an hour or 2 of gel up after second layer.
superdav95:
Just after second layer
superdav95:
Wraps on after first layer
Navigation
[0] Message Index
[#] Next page
Go to full version