Posted by dellus on Nov 17, 2024; 3:43pm
URL: https://forum.librecad.org/Newbie-needs-quick-help-tp5725650p5725667.html

Here is the file with added tab.
The original fin is not a polyline, but an inserted block. It has to be exploded too. Tools - Modify - Explode.

Javelin_Fin_with_tab.dxf

I don't believe in the use of videos to learn cad on the fly. You have to invest quite some studying.
There is the manual to be reached at the top of LibreCAD's starting page, and a nice introductory booklet is this: https://heikell.fi/downloads/LibCAD_220rc1.pdf