Old remedies were to spray tons of chemicals all over everything, spread egg shells in your garden, or place white paper butterfly decoys - but now we have 3D printing.
So I designed a 3D cabbage butterfly in AutoCAD and used STLOUT or 3DPRINT command to generate a STL file for use by 3D printers. I could also have easily designed the 3D Butterfly and generated an STL 3D Print export using the free Autodesk 123D solid modeling software. I then printed it on my MakerBot Replicator and then affixed it with fishing line to some 1/8” copper wire.
It will now fend off any other cabbage butterflies in the garden.
Step 1: Materials Required
Acetone to smooth the completed ABS plastic or chemically weld the antennae to body of butterfly (optional) You could also use a hot glue gun as an alternative.
Black magic marker to add black dots to the final 3D printed butterfly
3 feet of 1/8 inch copper wire available at Home Depot and other home supply stores.
8 inches of fine fishing line