I bought a thing which had a single job to do, it didnt work and sat in the garage for years
I tried it again and it worked rather well, perhaps too well.
The thing is a Humane Rat trap and probably didnt work when new as it smelt new, it now has authentic dust and spider crap and I only handled it wearing crusty old gardening gloves.
Bait was a Foil tray from under a pie with a dollop of yesterdays cat food.
Checked at 10pm, trap was as I left it.
Checked this morning, Pie tin had vanished entirely being replaced by
Rodentus-Fattus-Largenteum (deceased) and no sign of the foil tray.
The Rat seems to have died while eating a foil tray.
Either way its going in the black bin, if it was poisoned as well I don’t want anything else to eat it.
The experiment with foil Pie trays will continue even if I have to eat more pies, suffering for the purposes of research…
not sure my brain is geared towards these 3D printing apps though :-/ large learning curve there not quite the same as using raw numbers start here go there start stop so next year quite a learning to do. But as you say lots on the Thingyverse hopefully I don’t fall into that trap all the other 3D peeps I know printing off hundreds of Benchy boats 
