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tiller help needed -full draw added plus questions

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George Tsoukalas:
What I used to d when I first started was, when I went to a shoot, I would just watch as other people shoot just to see how their bows bent and recovered. This forum was not around then.

Now, you can go to the Bow of the Month portion of this site and look at some nicely  bending bows.

Bownarra gave you good advice and  I see the same.

Jawge

stuckinthemud:
Thanks both, your comments are much appreciated.  I softened the tips a little and took a few mm out of the centre but it looks like I didn’t go far enough. I’ll have another go, haven’t used a gizmo yet as I’m trying to go for an ellipse/D-profile.  Ntn is 33”, draw length will be 10”

bownarra:
The gizmo will still help.
For an elliptical tiller I simply wind the screw in as I move along the limb, with a bit of practise it will still show you stiff/weak spots on an elliptically tillered limb. I( use one on my elbs all the time and it doesn't get much more elliptical than the true elb tiller.

stuckinthemud:
oooh, ok, I will give that a go, thanks!

stuckinthemud:


How's it coming along?  This is full draw, I'm thinking to get it braced next then heat treated before a final tiller.  The profile now looks like this:



It used to look like this:



Photo is the other way up.  Most of the recurve has pulled out which is disapointing. 

When I heat treat this, how dark should I cook it, and should I set the handle back, or try to restore the recurve, or attempt to straighten it???  It will be under a lot of stress as it will be held at full draw for many seconds, as opposed to the fraction of a second at full draw for an archery bow so I'm thinking of a relatively gentle toasting - small colour change, heat soaking through 'til the back is warm to the touch - but leaving the profile as it is, but, I would really welcome your thoughts.

Draw weight is over 70lb at the moment.  Thickness taper is from11mm thick at the end of bending section to 18mm thickness at the centre.

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