Mack The Knife,
Have only seen a couple of these and have no idea about the exact measurements.However, it seemed pretty simple to make.All that you need is tempered steel/spring steel.You can ask some of the makers of such stuff in Rajasthan about the dimensions of the bows that they sell.If memory serves me right,Curious House also make's steel bows.
With a laminated bow,one possibility that would have to consider is that of de-lamination.It is not without reason that the mughals moved from the compound bow of wood and sinews to that of steel.Making a laminated bow does seem to require a dedicated set up.Wood and steel jigs to form and cure the bow and ovens for curing.Knowing you,you would want to follow the instructions to the T.At the end of it,you may find that buying one would have been cheaper and less frustrating.
All this information on the net does not tell you many things and you find at a later stage that the entire exercise is a lot more complicated and expensive than the source would have you believe.You would be learning as you make mistakes and at your own expense.Good if you want to make 'bowery' your profession but not if it is going to be just one bow
Steel would be much easier to source and machine.You seem to have access to the services of a machinist.He can help you to source the steel and to cut it to the required shape.Also, it will not go 'crack' and at the end of it,if you are not happy with the result it will still sell as scrap
