ORIGINAL: Ilikebipes
ORIGINAL: noveldoc
Make a root rib and a tip rib. Mark and drill holes to exactly center ribs properly.
Cut rectangular rib blanks and drill matching holes, 1 blank per rib. Fasten ribs together, usually with a long bolt. Carve and sand until the outline flows smoothly from root to tip.
Separate and voila, tapered ribs.
Tom
This is the process Jim Whitley describes in his Daddy Rabbit article. It works...
Brian
This technique works fine for ribs of equal spacing. The main advantage is that you can shape better percentage thickness root to tip, that is if you want the root to be a different % thickness than the tip. BUT IF you want unequal spacing root to tip, some trial and error affair will probably be necessary.
CAD drawn rib stack gives all kinds of options to you, such as accurate ribs of any spacing desired. If you want to build a precise thickness percentage, your ribs can be designed with skin undercut in mind. Spar notches and lightening holes in the ribs? NP.....The best of the options is handing the file over to an NC lazer cutter.
More work for sure, but when you say "you designed it" it actually means something