Fruit Fly Trap Jar Lid
by AlexEnglish, published
This is based on this canning jar lid: thingiverse.com/thing:19105
The fly trap lid pictured was printed with a low, draft resolution on a Mosaic with ProtoParadigm Red PLA.
This thing is a part of a collection of things featured in this post: protoparadigm.com/blog/2012/08/what-to-do-with-a-3d-printer-make-canning-jar-accessories/
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I made one and it works great! I have captured many fruit flies. I didn't have a canning jar on hand, but I found a clear plastic jar in my cupboard with the same size threads -- can't remember what came in that jar originally. For bait, I found that fruit flies love red wine. I discovered that when I left a glass of red wine on the coffee table for a very short time and came back and found two drunk fruit flies doing the backstroke in my wine. So I use maybe half a teaspoon or so in the jar. If I have a banana or a peach handy I put a chunk of banana or peach skin in also. My fruit flies go out in gourmet fashion! Peaches and red wine sounds like a great way to die to me!
Any chance you could upload a Makerbot-friendly file? When I use ReplicatorG, I feel way over my head configuring the infill and shells. I am new to all of this.
Thank you for your consideration!
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After printing, put some bait in a canning jar and screw the lid on. This bait can be pieces of fruit, fruit juice, or anything else that will attract fruit flies. As luck would have it, I haven't had any fruit flies around since I finished this (not that I'm complaining), so I haven't had a chance to test it, but I've had good luck with cruder traps of similar design in the past. Apparently a mix of some fruit juice with just a little bit of vinegar in it is a decent bait.
Place the baited trap near where you have fruit flies. They should enter through the hole at the end of the inverted cone, and will be unable to escape.
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