Please help with sweep

Rhino Rhino for Windows
1

handrail.3dm (70.6 KB)

Hello,

Could someone please help? I am still new to Rhino, and I am trying to create a bannister. My problem is, is that the sweep command either twists or flattens the profile while generating it, where as i am trying to achieve a result similar to the upright extrusion plugin in sketchup (which doesnt work on this curve).

I have not been able to figure out how to align the axis or orient the profile in a way that the result isnt mangled, or travels upside down the rail.

2

I suggest completing this in two steps: separate the parts with significant curvature changes from the smoother parts to create the Sweep surface, as demo below,

handrail.3dm (2.1 MB)

3

Thank you for your advice, the main issue that I’m facing is in keeping orientation of the cross-sections world aligned as the sweep is generated. While the end profile being rotated 180 degrees from the original isn’t the solution I was looking for, I do appreciate you taking your time to help.

4

It screams for improving section crvs quality.

5

Have you tried the “Super sweep” plug-in? It’s free and awesome. Keep in mind that it only supports a single profile. It does not need to be exactly on the curve, because the plug-in is smart enough to relocate it on the rail relative to the point you pick.

It features a dynamic preview, as well as the ability to trim either end in a numerous ways while the rail output is still in a preview.

supersweeprhino7.zip (52.6 KB)

Check the video description, too.

https://www.food4rhino.com/en/app/super-sweep

3 Likes
6

Can you provide instructions on how to install this plugin for Rhino 8?

7

I’m running into the same issue. Any help would be appreciated.

8

It’s pretty straightforward, just like any typical exe file for Rhino:

  1. Download the ZIP file from Food4Rhino;
  2. Unpack it;
  3. Double-click on the exe file;
  4. Follow the instructions to complete the installation;
  5. Open Rhino;
  6. Drag the RHP file into Rhino’s viewport (it will inform you that there is a new command called ! _Super_Sweep);
  7. (Optional) Edit the “Sweep 1 rail” or the “Sweep 2 rails” icon and add the new ! _Super_Sweep to the RMB.

Screen Shot 01-22-26 at 12.03 PM
Screen Shot 01-22-26 at 12.03 PM1796Ă—1523 127 KB

9

I am certain that I have tried all the instructions here and in the original location of the file. My computer has user restrictions, and as I am not an administrator, I think the exe file cannot be run. A second possibility is that my version is Rhino V8. I will try again another PC

Thank you for your help!

10

yes… file sweepform.exe not run

Screenshot 2026-01-22 194453
Screenshot 2026-01-22 194453861Ă—713 80.8 KB

11

Perhaps the Rhino developers could help with some opinion on the matter. From what I heard in the past, Rhino 8 should support the scripts and plug-ins made for Rhino 7, however, there’s always a chance for some incompatibility.

2 Likes