dust catcher for drilling in the ceiling - parameterized

There are lots of dust catchers out there for drilling into drywall walls. But I had to drill holes in my plaster ceiling. A lot of them. So I built this. It worked great for its main purpose. I have since parameterized it so it should work for any size drill. All the dimensions are based on the drill size, so it should scale pretty well, making the cone small enough to let you drill with a tiny drill, but I haven't tested it out to be certain. You can always edit the model if necessary.

Prints with the large side down, no supports. 

The cone is designed to fit tight around the drill shaft, but there is a parameter ("ease") you can add if your printer prints it too tight or if you prefer to have some space around the drill (but not too much or it becomes pointless). The lip around the edge keeps the plaster dust inside the cone with the cone spinning. Don't let the cone get too full, though - dump it out after every hole or two.

(Note - if you have an old plaster ceiling that has been damaged, and parts of it are sagging away from the laths, you can actually fix it in place. You drill lots of holes, squirt special adhesives up in the holes, then print or buy plaster repair washers (see my other models), and use them with drywall screws into the rafters to pull the plaster up into place until the glue is dry. Search on YouTube for good tutorials and more information. And then thank me for this model for keeping all the plaster dust off your face, clothes, and floor.)