The difficulty I'm encountering is that the angle of the rectangular profile is modified as it is swept along the helix. Any help greatly appreciated.
Thanks in advance.
- The issue
- rfh-spiral.png (43.63 KiB) Viewed 447 times
Create spiral with profile always perpendicular to spiral axis
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bzb.dev001
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Create spiral with profile always perpendicular to spiral axis
I'm trying to create a spiral chute using a helix geometric primitive and a rectangular profile. I would like to have the rectangular profile maintain a position that is perpendicular to the axis of the helix as it is swept along the helix.
The difficulty I'm encountering is that the angle of the rectangular profile is modified as it is swept along the helix. Any help greatly appreciated.
Thanks in advance.
The difficulty I'm encountering is that the angle of the rectangular profile is modified as it is swept along the helix. Any help greatly appreciated.
Thanks in advance.
- Attachments
-
- sample-spiral.FCStd
- sample FreeCAD file
- (54.11 KiB) Downloaded 12 times
Re: Create spiral with profile always perpendicular to spiral axis
I'm with my phone ATM and can't check, but IIRC there is a transformation mode called "Frenet" whose this is the purpose. 
Re: Create spiral with profile always perpendicular to spiral axis
Change the orientation mode
- Schermafdruk van 2019-06-22 08-01-22.png (122.35 KiB) Viewed 433 times
Re: Create spiral with profile always perpendicular to spiral axis
you can also just toggle the property value of the Pipe under Sweep ...Mode...to Frenet.