Follow Me perpendicular on path

Hello. I am trying to make a curved stairs handrail with Follow Me function. The native Sketchup function rotate the extruded surface. I tried Eneroth Upright Extruder, but I can’t keep it perpendicular on path. I tried FollowMeAndKeep, but the rezult is very jerky. There is some plugin/extension that can help for making some smooth result? Thanks in advance.

FollowMe.skp (152.4 KB)

Upright Extruder will work if you create the entire path and extrude from the end. Give it a straight run at the strat with the profile perpendicular to that first segment.

The curved part of the path appears to need some help. Do you really want that hard bump where the curve transitions to the upper straight run?

I think you’d find it easier to work in your model if you turn off Length Snapping in Model Info>Units and switch the camera to Perspective. Save Parallel Projection for scenes for output.

I can’t see that hard bumb in path. Only in the result. I tried to make the handrail in one unique path, but I still have that bump. :slightly_frowning_face:

Set the Camera to Perspective and orbit around. The hard bump is there in the path. You really need to redo the path to eliminate it. I’ve done so here.

I did set the Perpective mode. Here is a screenshot from the original file. I still don’t see any bumb.

I did rebuild the path. I tried to extrude from bottom to top, and from top to bottom. No change, and the middle is some strange contact between up and down.

Without lifting a finger as yet, I know from experience that juncture is always problematic. For each of the straight runs, the rail has a simple rise-run-rise-run slope to it, but the inside corner of the landing stacks two rises with no run in between, so there’s this abrupt step up that has to happen somewhere.

I am aware of that, but the path is steeper at the transition point between the two ramps.

I just want to create this Follow Me on this path, and I can’t found the right solution, with or without plugins/extensions.

You could try this too: extrude the path vertically and PushPull the surface horizontally (Vertex Toos and Fredo JPP).

That curved part of your rail has 54 segments in 46 centimeters. I think you are hitting the small face problem.

If you make the lines and the face to extrude a component, move + copy it to the side, then use the scale tool to make it 10x larger (leaving the original where it is) - then run follow me on the large version it might work cleanly…

It still is a weird bump…

Sorry, I tried but i didn’t obtain a decent result.

If you put guide lines on the straight lines you’re trying to merge, you see then never intersect in 3D space.


That means they can’t lie in one plane, but all the segments of the arc DO lie in a plane. That’s why you can’t get all the points AND all the tangents at those points to match with just line-arc-line. I think line-arc-arc-line will work or, if someone else has a bézier plugin (I don’t at the moment) they could try that.

I know they don’t align on the same plane. I didn’t intend for them to. I just want to join them with a curved line—using “Follow Me” or something similar—to create a handrail for this type of staircase.

After reading Mike’s message I realized that it should have been the first tip, but out of habit I redo the curves with Fredo Spline to have equal segments to avoid the problems created by too many segments for a small distance and some of them being very small. I automatically avoided such a situation.

Your curve looks very well. But I’ didn’t get how to obtain it. I tried. This is the rezult. :grinning_face_with_smiling_eyes:

:play_button: Balustrada.skp (163.4 KB)

Thanks for the railing. It has that soft look I was after. I’m not sure which extension was used to create it. I really ought to learn how to use Fredo Spline so I can create the curve exactly the way it needs to be. Here’s how the curve you made fits onto the original drawing.

You’re welcome!

The model you shared only had the railing.

Fredo Spline

Connecting the two lines by means of two arcs instead of one works pretty well together with Upright Extruder, but I like @mihai.s approach with splines or bezier.


Thank you. I'll give it a try tomorrow.