Tiller Question?

Joe(thebow)M · Tiller Question?

Of the three bows I have built thus far, when checking for the proper Tiller of the bow after it appears to be correct on the Tillering Board, I have been within 1/16", 1/8th, and 5/64" of an inch...

Not knowing if this is considered good or not, or perhaps falls within a tolerance level accepted by bowyers (other then it being Tillered perfect), is these measurements that I'm off anything to worry about?

My concern is that I don't want to take off to much away from one limb when I'm so close to proper Tiller that it would throw the other limb off and I'd have to work it.

Steve B

Let me have a guess here Joe, as that is all it would be. I hope my logic is half reasonable. Tiller measurements on compound can affect the nocking point hight and vertical nock travel and therefore affect the accuracy of the bow. On Long bows and hand crafted wooden bows I am guessing that the measurements that you have are considered minimal and as there is nothing that can be adjusted anyway (ie: the tiller will always be that and will only change if the properties in the timber change) so the effect is constant and therefore no problems. I would be like you Joe and aim at something that is very close though.

Another question would be if you are going to have uneven tiller is it better the have the larger measurement on the top or bottom limb?

( I hope I am allowed to ask that Joe and I hope you don't think me hi-jacking your thread)

Joe(thebow)M

No, I don't mind at all you asking that question, Steve. I would like to know as well;

"Another question would be if you are going to have uneven tiller is it better the have the larger measurement on the top or bottom limb?"

I'm up to date on tweeking the compound bows as that is what I started out with and everything you've said is on the money. I to agree with the no change in the properties of the timber so the effect is constant on pull.

I have now shot all three bows (including the newest maple) 200 or more times and they have each taken set. I understand this to be a good thing and the Tiller/measurements have stayed true throughout the bow. I think I'm all right, but confirmation never hurts.

Steve B

Well as I said Joe, I am not a good one to ask about longbows and self bows, but I hope that logic prevails as thats all I have and that is sometimes as well

. I am sure that the more experienced people Like maybe Fred will pop in and answer though...well I hope so anyway