How to mirror without plugin?

Hello. I would likt to know how only using the flip along method… because I found only a paid plugin to mirror a object. How to manually mirror without using the scale mode?

Are you still using SketchUp 2020 as shown in your profile?

2021 now

Start with a search on You Tube.

Here’s one:

Correct your forum profile.


You can also scale to negative values.

Select object.

Activate scale.

Chose a middle handle perpendicular to the plane you want to mirror - think of it as pushing the object through itself - like turning a paper bag inside out.

Once you push it through type -1 and press enter.


It will snap to -1 too…