Friendly mousetrap, fully printable

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Published on January 25, 2013
This thing was Featured on January 25, 2013

Description

One of the fascinating things with 3D printers is the ability to print mechanical objects. To catch some mice, I’ve designed a mouse friendly mousetrap. The trap is fully printable and you don’t need any screws or other hardware. Everything is press fit or screwable. Just add some peanut butter bread or other bait and you’re good to go!

One thing I hated from existing mousetrap designs is the inability to easily add bait to the trap. So I made an easy sliding lock door with a hook for the bate.

It took my quite some time designing this thing. So if you print one yourself, please share a pic. I always like to see things I designed used by others and it encourages me to share more 3D designs.

Printed with 0,25mm layer height on a Felix 1.5 3D printer with 0,15 infill. Used 140 gram PLA.

Instructions

Print every part, and press or screw together. See exploded view for assembly instructions.
Almost everything is printable without support material, only part “mousetrap [Top-door] [V2].stl” needs a tiny bit of support otherwise the hinges are floating.
The size is 20 x 70 x 71, if it doesn’t fit on your print bed, try to fit it diagonally. Otherwise you can shrink the complete design. I’ve printed one at 80% size and it’s fully functional, but I don’t think you should go smaller. The bigger it is, the more comfortable the mouse will go in.
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"...and the world will beat a path to your door."

Satoer, what software did you use to design this? and to make that screenshot with all the dimensions?

I use 3D studio max for my designs. But It’s not the most convenient way for Industrial designing. I’m a motion graphic designer so that program suits me the most.
The exploded view I also created in 3D studio max and rendered it with V-ray. Everything you see I made myself, so sadly there’s no automated way the measurements, grid andarrows magically appear. But if you if you want to create arrows easily in a 3D program, use the “windings 3” font.

i like it, makes me wish I had a mouse

Ummm - it's "bait" not "bate".

Thanks! I changed it. It'ts not my native language ;-)

It looks like it should work, but like CodeCreations said, it better be noisy when it goes off so you can go empty it. I don't think it much matters what kind of plastic it is, a mouse will chew its way out pretty quickly. It will probably take it a while to figure out it can chew it, after that I give it 1/2 hour, definitely not overnight. Maybe you could bait it with peanut butter mixed with benadryl. A sleeping mouse wont chew anything. :)

Tonight I caught a mouse with it, and it probably was trapped all night. No signs of chewing on the PLA

Well, the mouse in picture 3 was really caught with it. So it really works, but I havent tried a mouse endurance test with it

Wow, this is awesome! I wonder if the mouse would chew through it given enough time or if ABS is less tasty than PLA. I'm tempted to make a derivative for which you put the peanut butter on the print bed and then just print the trap over the mouse. :)

It's a beautiful design -- thanks for sharing it!

If you make that derivative, you're going to have to post a video.