Posted by dellus on Nov 16, 2024; 1:30pm
URL: https://forum.librecad.org/Newbie-needs-quick-help-tp5725650p5725657.html

No dxf provided?

Ok. Be sure you have Free Snap, Snap on Endpoints, and Snap Intersection on.

Tools - Line - Two points : click first point at the left fin root, for the second point activate the command line by clicking into it or press the space tab and write   @0,-0.75  

Tools - Line - Parallel: Select this first vertical fin tab line, in the Tool Options bar appearing at the top of the screen enter Distance (2.5) and Number (1). Close command with right mouse click.

Same procedure for the back vertical fin tab line with distance 4.5.

Horizontal bottom fin tab line with  Line Two Points , click first and second point using endpoint snap.

Delete first vertical fin tab line, select it and press Delete.


Now remove the middle part of the original fin shape: If it is one entity (polyline) you have to explode it first. Then brake up the bottom line twice with Tools - Modify - Divide. Select the line to be divided and then the dividing points by snap on the upper endpoints of the vertical fin tab lines.

Delete the middle part separated now.