Morning everyone, one quick question, I'm trying to set the grid at 0.005um, but it remains at 0.01um. I was searching here and @Tim Edwards mentioned here to use

snap internal

but it didn't change it. Does anyone have any idea?

Which technology file? Both sky130 and GF180MCU should have a minimum grid setting of 5nm. You should start magic with the

-rcfile

switch (e.g.,

magic -d XR -rcfile /path/to/sky130A.magicrc

), which runs (among other things important to the PDK setup) a grid scaling that scales from lambda (an initial grid scaling chosen somewhat arbitrarily) to the minimum manufacturing grid. If you're not using

-rcfile

(hint: you should), you can scale the grid down with the

scalegrid

command.

I was working with sky130. Thanks Tim, I'll start using the rcfile.

First: The

grid

command just draws grid lines. If you want to draw on the fine scale, just use

snap internal

(what you did is fine, too, just a bit more roundabout). If you are drawing geometry from the command line (or a script file), the

grid

and

snap

are irrelevant as long as you specify units (e.g.,

box 10um 10um 20um 20um;  paint m1

) "save all of that" followed by "nothing is saved" is contradictory. Can you provide an example of something you scripted? (A common misunderstanding is using the

save

command instead of the

writeall

command, which could be the issue here.)