I'm new to Blender. I'm using it for 3D printing. and I'm trying to do something I thought would be easy but cannot figure out how.
The basis for the thing I'm trying to print is a sandwich board. I cannot figure out how to move vertices to precisely where I want them. I want to extend the one face so that the two vertices reach the ground. (I added a plane to represent the ground for clarity in the picture below.) Moving these vertices will also result in the bottom of this side of the sandwich board resting fully on the ground.
In non-Blender lingo, I want base of the sandwich board to lie entirely on the plane defined by z=0
.
The vertex slide seems really close, but it's missing two things. If you can slide it off the end of the edge it's on, I can't figure out how. And if you can tell it to slide no further than a given plane, I can't figure that out either.
I tried doing this with BoolTool and creating sacrificial cubes to cut the bottoms off the sandwich board. I found that the more I used BoolTool, the more I ended up with erroneous or superfluous vertices.
I know I could get out a pencil and paper and a trig table and manually calculate the vertex positions, but it seems there ought to be a way to do this.
(Another way of looking at this is that I want an extruded parallelogram, though I see myself having the same problem, just with one vertex instead of two.)
I'm open to alternative ways of doing this, too.
edit: I'm on Blender 3.2.0.
edit: This is what my Snapping settings look like.