Building the tipping ramp mouse trap
In its first five months, my build a better mouse trap video has got four million views on YouTube.
I didn't go into any detail on how to build the trap in the video. In fact, I just went into the shop with a vague idea and started cutting, so the design is not optimal, but it works.
At left, 1:1 printouts on one page which I took into the shop.
I used my callipers to copy the hole geometry onto the plastic and drilled them out.
Two screws with wide heads secure the plastic in place and lock the paper clip wire in the slot.
The magnet is one I saved from an older style SoniCare toothbrush head. It's not very powerful, but I really don't need a strong magnet.
Then installing another paper clip to touch the end of the magnet in the back. This takes some tweaking to get the attractive force just right. Too much and it never dumps the mouse, too little and it releases before the mouse is far enough down the ramp.
When a block of wood of this weight is carefully pushed along the ramp, it should trip once the block is half to two thirds of the way out. The block I'm testing with is some very dense hardwood, a typical wood block would have to be larger to have this weight.
The bait I typically use is peanut butter smeared to the end of the ramp, with some trace amounts smeared to the wood leading up to the ramp.
Based on previous observations, a mouse can just barely jump out of a bucket, though it can take an hour of trying before it succeeds.
Traps like this are typically used with some water in the bottom to drown the mouse and prevent it from jumping out. If you aren't from the country and never had mouse problems, you probably consider this cruel. In that case, it would be good to put about 2-3 cm of sawdust or kitty litter into the bottom of the bucket. It's much harder to jump high from a soft surface so even though the mouse is a little closer to the rim, it's very unlikely to make it out. And then you can release the mouse somewhere else and either have it die from exposure or lack of shelter, or you can make the mouse someone else's problem, but at least you didn't kill it.
Anti-deer tree cage
To my Woodworking website.