Mason (Ball) Jar Fruit Fly Trap
thingiverse
Remix of @charlesodonnel's smaller insert. Beefed up a few things, adding ~5m longer printing but stronger funnels. Uploading .step and .f3d (fusion360) files for parametric customization. Took a moment to describe parameters so should be easy to modify for any diameter of jar/container. Set 'Outer Diameter' to exterior diameter of container top and 'Support Diameter' ~10mm smaller, depending on thickness of container walls.
Download Model from thingiverse
With this file you will be able to print Mason (Ball) Jar Fruit Fly Trap with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Mason (Ball) Jar Fruit Fly Trap.