Sometimes you have to shut off water, for maintenance or repair.
Shut off valves are very often hard to reach and I find 'butterfly' handles even harder to manipulate. They tend to be a bit jammed and you have very little space for your fingers to work your way.
A tool to leverage those handles was one of my first 3D design in 2017. It worked well but I was inspired to make a better version when I saw Jarounet's design (here: https://www.thingiverse.com/thing:5262959)
This is my version. It is a bit less elaborate but does not require any assembly or gluing. And no supports.
I made this thing for my valve knob, fitting its dimensions (which you can read on the uploaded diagram; dimensions are in millimeters). The design is parametric so if some of you would like a version of this same design but with different dimensions for the butterfly cut, let me know in the comments.
Butterfly_handle_amplifier.stl | 233.7KB |