I didn't see anyone respond to this. I think the easiest way to duplicate a tip would be to use one of those moulding duplicators and make a "rib" for any "station" along the planform, then just flip each rib 180 deg. Strictly a manual process but you can duplicate any shape, concave or convex.
The moulding duplicator looks like a sort of comb with teeth on both sides, except these teeth don't have gaps. They are essentially pins held in a single row by a handle of sorts. You press it against the shape you want and you have an inner copy of the shape on one side and an outer copy of the shape on the other side. Basically take an impression of the shape ever inch or so and transfer the pattern to stiff plastic "ribs" you can use to check your shaping. There are other practical ways to do this with out this device but I think you should be able to find this device at almost any hardware store. You can also do this with a compass (circle drawing device) or dividers...the same way a cabinet maker scribes the surface of a wall to a cabinet so you can make the cabinet fit an undulating or otherwise irregular wall precisely. Phill Hill Collinsville, IL On , Paul & Karen Smith <[email protected]> wrote: > Does anyone know of a good technique for copying one wing tip shape and > reversing it in 3d for the other wing? > I'm worried about setting up an imbalance if I get it wrong. > Paul Smith > Brisbane, AUSTRALIA > [email protected] > http://kr2spacemodulator.blogspot.com/ > _______________________________________ > Search the KRnet Archives at http://mylist.net/private/krnet/ > to UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html
