Join Date: Sep 2008
Location: Bavaria, Germany - the center of 15th and 16th century gunmaking
As to rebuilding a composite hornbow crossbow and a matching cranequin, believe me: it is virtually impossible!
In post #54, I posted a cross-section of a composite hornbow and detailed description. Please study carefully. Below I attach photos of a similar cross-sectioned hornbow fragment that I took in the reserve collection of the Historisches Museum Luzern in 1995.
I have heard of several people who, like you, tried to copy such an item and all failed in the end.
That's exactly why there is not one single replica of such a hornbow on the market!
As to the cranequin: I think the best idea would be to view a piece you would like to have in an upcoming auction, photograph it there and take all the measurements.
Again though: rebuilding it would prove to be a tremendous piece of toil. I suggest purchasing an original piece that works alright and use that. This will be both more efficient and cheaper as well.