I'm trying to print a topographic relief, I'm close to the end but I can't find a way to have the back of my object perfectly flat without changing the top.
(I tried to SY
0. didn't worked)
The solidify modifier can be removed, if you need to do this kind of thing a few times do this instead:
You can use the mouse, or left / right keys, or even type the number you want directly with the num keys.
Here's a view from the underneath before and after the flatten.
there are all kinds of factors that can interfere with how straightford this is, the location of the reliefs Object origin being one of them. If I had to do this repeatedly, it would be something to write a small python script for.
The recipe for such a script might be:
This would produce a mesh with a minimum thickness.
In case you are using the solidify modifier :
in the material tab select the second material and click Select (the first image )
All bottom vertices are selected now hit S then Z and last 0
Select bottom vertices, press S > Z > 0.