I've been using 3D printers for fifteen years now and they're still magic. The fact that they even exists is amazing. Thinking about how they work is amazing. Looking at what you can make is amazing. Considering how it can change your workflow is really, really amazing. I thought up a part on the way home from work and worked through seven iterations before going to bed.
So anyway, these parts are for my newest hobby project. I moved into an apartment with blinds on all the windows, very tall windows, and it's tedious to open and close them all every day by hand. So I want them to be motorized and remote controlled. But I don't want to replace the existing blinds with commercially available motorized shades, I want to automate the existing blinds. I doubt anyone even makes motorized blinds or shades that would fit these enormous windows. So the parts above are for that project. The object on the left is a profile to fit over the window molding and the part on the right is a latch to hold the blind string ratchet in place so the motor can lower the blinds without interference. It'll take a while to complete, but it'll be nice when it's done.