Inverted Sketch

[dubstar-04]

I'm looking for some guidance and Ideas on how to prevent sketches getting inverted.

Typical Example:

StdSketch.png (35.99 KiB) Viewed 536 times

If I make changes to the sketch one end becomes inverted

InvertedSketch.png (33.17 KiB) Viewed 536 times

Thanks,

Dan

[chrisb]

You can try to use angles, as the angle constraint respects the direction of lines. You find some additional information in this document: https://forum.freecadweb.org/viewtopic.php?f=36&t=30104.

[bejant]

One solution using an Angle Constraint:

20200224b-HoseAdapter2.FCStd

(13.59 KiB) Downloaded 17 times

(Check your wall thickness at the left end of the smaller barb fitting after you change the Vertical Distance Constraint from 15 mm to 8 mm)


OS: Ubuntu 18.04.4 LTS (ubuntu:GNOME/ubuntu)
Word size of OS: 32-bit
Word size of FreeCAD: 32-bit
Version: 0.19. (dated 2020-02-22 15:16:34)
Build type: Release
Python version: 3.6.9
Qt version: 5.9.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

[dubstar-04]

You can try to use angles, as the angle constraint respects the direction of lines. You find some additional information in this document: https://forum.freecadweb.org/viewtopic.php?f=36&t=30104.

Thanks chris, some really good guidance in there.