How can i do it? Please help me
You don’t need JPP for that, just select the geometry and move it 4mm.
If you attach your model someone might be able to show you how.
Sure, here it goesFX6SU8JJUQS8NCW.stl (74.5 KB)
I already tried with the stock push/pull button but it doesn’t seem to work (or maybe i’m not using it well)
In future add the .skp file not the .stl unless asked for it.
Select left to right so it only selects what is inside the fence, then start to move it with the move tool and type 2mm then hit enter.
Repeat for the other side.
And if you only want the ‘groove’ to change, just select those parts.