I have my units set to snap at 1/8 increments but some how the “tilde” always manage it’s way back into my drawing.
Sometimes if I’m modeling a small furniture I can do it carefully enough to avoid tilde, but when I’m modeling something big like a whole house the tilde is like inevitable… it will sneak in on you, and one will lead to another, and another, until you have to nudge a whole bunch of things and spend a whole day adjusting the model to remove the all tildes.
1 tilde actually won’t do much harm, but when you add a bunch of them your dimensions will be off, and in the construction industry precise dimensions can be crucial.
I’ve yet find a “snap all points/vertex onto unified grid” plugin, if there is such plugin I’m more than willing to pay for it.
But if the next SketchUp upgrade can just implement a “grid system” in the model space it would be a tremendous breakthrough. There’s a function in AutoCAD and Rhino that can snap all endpoints and quadrants onto the grid…