Main Discussion Area > English Warbow
An idea for ash bow dimensions & tillering tips
willie:
--- Quote ---The dimensions Ruddy has written down are actually perfect for a finished bow with slight elliptical tiller.
--- End quote ---
That was my guess also, Will. Seems like many warbows are built by first establishing a depth taper and then side tillered to finish, at least more so than than with other type of bows, where most tillering is done on the belly after a width profile is established.
I often see warbow dimensions presented in this tabular form, and presume that many of the mary rose bows measurements are tabulated in the same way? Not having the ability to review these dimensions, or other tables often mentioned by the warbow community, I was curious if the additional thickness tapering in the outers is........ typical, common, uncommon or rare?
Ruddy Darter:
I finished getting the stave worked down to 40mmx30mm ready to start working it to dimensions.
The stave is relatively straight save for a little wiggle inner mid limb. One question I have is the slight D-flex on the limb nearest...would it pay to heat this straight after working it down or would it be more trouble than its worth as it might throw me by creeping back in when I tiller?...would I be better off leaving it alone?
Thanks for any advice,
R.D.
WillS:
Heat treating to correct tiller is done once the bow is braced, not before.
Before bracing, you want to try and preempt issues like reflex and deflex. Reflexed areas are left slightly thinner, deflexed areas slightly thicker.
So basically, leave maybe 2mm extra thickness on the belly in that deflexed area, take everything else down to exact finished dimensions and check, check and check again the eyeline, looking for swells, dips etc that shouldn't be there. Get all of those sorted, until you're absolutely sure the bow is ready (I tend to ask myself if I'd sell it and if the answer is yes, it's ready!) and then get the horns on, brace it up and see what's happening.
That's the stage where you bring in the heat gun, charcoal etc to temper the areas that are bending too much at brace height.
Ruddy Darter:
O.K. thanks, I'll just leave it be then...dont want to chance complicating matters,
R.D.
willie:
--- Quote ---deflexed areas slightly thicker.
--- End quote ---
Will, would that mean that you must also leave the thicker area appearing to be stiffer in the bend profile when tillering?
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