Pattern along a compound curve.
Forum rules
and Helpful information
and Helpful information
IMPORTANT: Please click here and read this first, before asking for help
Also, be nice to others! Read the FreeCAD code of conduct!
Also, be nice to others! Read the FreeCAD code of conduct!
-
- Posts: 42
- Joined: Fri May 12, 2023 4:14 am
Re: Pattern along a compound curve.
I'm at the step where I am trying to pattern holes along the curve. The problem I am having right now is that I am unsure of how to get the holes to be tangent to the surface of the body. This is what I have attempted so far:
. The annotated image below is what I am trying to achieve: . I want a set of 12 holes evenly spaced at the centre of the arc. I am also unsure of how I can specify where the first instance of my pattern should occur along the curve so that it doesn't start at the very beginning. Thanks for the help.-
- Posts: 42
- Joined: Fri May 12, 2023 4:14 am
Re: Pattern along a compound curve.
I'm at the step where I am trying to pattern holes along the curve. The problem I am having right now is that I am unsure of how to get the holes to be tangent to the surface of the body. This is what I have attempted so far:
. The annotated image below is what I am trying to achieve: . I want a set of 12 holes evenly spaced at the centre of the arc. I am also unsure of how I can specify where the first instance of my pattern should occur along the curve so that it doesn't start at the very beginning. Thanks for the help.-
- Veteran
- Posts: 3106
- Joined: Thu Sep 24, 2020 10:31 pm
- Location: Hawaii
- Contact:
Re: Pattern along a compound curve.
@keshmaster81
It was easier to start from scratch. Too much unnecessary clutter in your file.
Used a revolution not a sweep to make the base object.
Adjust the point in Sketch to locate the line of centers.
Sketch002 is a construction line to attach the pocketing Sketch001 to.
Used polar patterns to replicate the holes. You adjust the number and angle.
It was easier to start from scratch. Too much unnecessary clutter in your file.
Used a revolution not a sweep to make the base object.
Adjust the point in Sketch to locate the line of centers.
Sketch002 is a construction line to attach the pocketing Sketch001 to.
Used polar patterns to replicate the holes. You adjust the number and angle.
- Attachments
-
- hydro.FCStd
- (417.92 KiB) Downloaded 14 times
- Shalmeneser
- Veteran
- Posts: 9474
- Joined: Wed Dec 23, 2020 12:04 am
- Location: Fr
Re: Pattern along a compound curve.
- Attachments
-
- mytyreisflat_SHALM.FCStd
- (273.14 KiB) Downloaded 12 times
-
- Capture d’écran 2023-05-16 181415.jpg (49.89 KiB) Viewed 935 times
-
- Posts: 42
- Joined: Fri May 12, 2023 4:14 am
Re: Pattern along a compound curve.
Wow thank you so much! I wish I had thought of using a revolution instead of a sweep. It's so much cleaner and well designed.edwilliams16 wrote: ↑Mon May 15, 2023 8:38 pm @keshmaster81
It was easier to start from scratch. Too much unnecessary clutter in your file.
Used a revolution not a sweep to make the base object.
Adjust the point in Sketch to locate the line of centers.
Sketch002 is a construction line to attach the pocketing Sketch001 to.
Used polar patterns to replicate the holes. You adjust the number and angle.
Screenshot 2023-05-15 at 10.33.44 AM.png
-
- Posts: 42
- Joined: Fri May 12, 2023 4:14 am
Re: Pattern along a compound curve.
challenge: do this pattern along a spline. (the hole is on the 45° radial)
- Attachments
-
- Capture.JPG (27.06 KiB) Viewed 846 times
-
- Veteran
- Posts: 3106
- Joined: Thu Sep 24, 2020 10:31 pm
- Location: Hawaii
- Contact:
Re: Pattern along a compound curve.
@Vincent B
Your solution had to be less convoluted than mine.
Your solution had to be less convoluted than mine.
- Attachments
-
- holesonbsplinehalfpipe.FCStd
- (324.85 KiB) Downloaded 15 times
-
- Veteran
- Posts: 3106
- Joined: Thu Sep 24, 2020 10:31 pm
- Location: Hawaii
- Contact:
Re: Pattern along a compound curve.
This is a little cleaner. Attached a vertex to the hole curve, then the sketch can be attached tangent to the surface at the vertex. As before, use a Lattice2 paraseries looping on the Vertex's map path. Had to discretize and interpolate the sweep path so as to make map path linear with distance to get equally spaced holes.
I suspect I could use Draft|Path Array instead of Lattice2, but couldn't figure out how to get the circle sketch tangent to the surface.
I suspect I could use Draft|Path Array instead of Lattice2, but couldn't figure out how to get the circle sketch tangent to the surface.
- Attachments
-
- holesonbsplinehalfpipe2.FCStd
- (257.05 KiB) Downloaded 12 times
Re: Pattern along a compound curve.
Hi Vincent B, Greetings to the Community!
...here is my flow for your "snake" with holes at 45°
- Attachments
-
- holey_snake_domad.FCStd
- (265.91 KiB) Downloaded 17 times
-
- holey _snake_domad.png (137.6 KiB) Viewed 650 times