This is a live-catch jar mouse trap based on a 1927 patent (see attached file) and a creation from @entomophile. I completely recreated the design in Fusion 360, because wide-mouth mason jars are not so common in Europe / Germany. I've added a holder for the glas and a small ramp, too.
To assemble the trap you need a twist of jar with a 81.6mm opening, two to three paper clips and a wire with a 2mm diameter for the hinge.
I've added some variations for the glass holder, but if your glas is different you can simply load the attached Fusion 360 file and change the parameter Glas_Diameter and create your own stl files. Same goes for the paper clips. I've added gates for 0.8mm and 1mm thick paper clip wires.You can create your own wire dimensions by changing the parameter Trap_WireDiameter. If you're not a Fusion 360 user, you can use the attached STP-file as a base for changes.
2019/05/23: Tap is working fine. Already caught a mouse.
Because some parts are a bit slippery I've applied some Plasti Dip to the top of the holders and to the bottom of the ramp.This might not be need or you could use some blue tape too but I had a can with Plasti Dip laying around so I used it.
Depending on your paper clips you might want to add a drip of superglue to fasten them at the gate.
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