Simple geometry generation error

[duffy55]

Hello, I'm using Freecad sometime, so I'm not so skilled to use it.
I met a difficulty with very simple geometry, I'm using:

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.29177 (Git)
Build type: Release
Branch: releases/FreeCAD-0-20
Hash: 68e337670e227889217652ddac593c93b5e8dc94
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.2
Locale: C/Default (C)

The geometry I would want obtain is in fig. 1
I drawn the sketch (fig. 2) with no DoF bat when I try to do the Pad always the following message is shown:
Recompute failed! Please check report view. (the large curves are drawn wit h 3 point tool)
I solved the problem importing a sketch geometry from a dxf, generated in a 2D CAD system.
I'm thinking to do a very stupid error, can you explain me what may be my mistakes.
Thank you
Regards

[thomas-neemann]

...

can you upload the file ?

[heron]

Hello, if you can attach the file it would be easier to find out the issue.

It seems that there is some line overlapping other lines. Maybe where the arrows point

capture.png (57.27 KiB) Viewed 894 times

[Bance]

It's just a poor constraints scheme.....

[duffy55]

Attached needed file

[heron]

Bance gave you the solution.
My comment was wrong, there are no overlapping lines. Sorry for the noise.

[thomas-neemann]

...

here is a quick suggestion


https://www.youtube.com/watch?v=rvtMi3LaVRA

phpBB [video]

[chrisb]

When I try to pad the sketch I get the message "Wire not closed". The Sketcher's validation tool show the vertex in question. An automated repair will of course create overconstraints. You have created something like a "homemade tangency" by using two point-on-line constraints. Remove them, and create a point-to-point tangency.. As this consumes 3 degrees of freedom you have to remove another constraint, e.g. one of the radii at the left.

I recommend to use the same tangency for the other similar vertices as well.

If you need it, I can upload the file.

[Shalmeneser]

Sketcher_ValidateSketch > Highlight troublesome vertexes :
* problems with left edge of 70mm line (suppress the Sketcher_ConstrainPointOnObject, add Sketcher_ConstrainCoincident)

But the sketch is not perfect.

[duffy55]

Thanks to all.
Regards