Flow along surface - spiral shaped

pic-2 Flowalongsrf.3dm (7.7 MB)

Uupsi, I somehow missed the text, this is it:
Hi,
I want to visualize an led-strip wrapped around a pipe, but I am having severe problems with the flow along surface command.

I make a spiral 82 height, 8 turns, 10 mm diameter, measure its length (243 mm), place a 8 mm line at its end and use one rail sweep with these settings (pic1)

i make a rectangel srf 8 x 243 mm as base srf, copy it, extend it by 0.2 mm as strip, male a cube 3x4x1 mm as led, linear array to spread it along the strip and group the strip and the leds.

I the use flow along surface with these settings (pic 2), but get the weirdest result … (pic 3)

According to a posting from August 20 I also tried shrink trimmed srf, but get: all srf are already shrunk

Am I fighting with a bug? Is it a problem that my led-strip consist out of two groups?

I am at my wits end …

Thanks in advance Jan

Hi Jan - please post the file. FYI, you can edit your own posts - like adding the words you forgot - no need for a new post.

-Pascal

Hi Pascal,

thanks for the info … I just didn’t think about editing the post … and the file is already there, “Flowalongsrf.3dm” right to the bottom picture.

Best - Jan

Hi Jan - is this what you are after?

Flowalongsrf_Maybe.3dm (577.0 KB)

-Pascal

Yes, great, exactly! If possible, I’d like to add some more details like the copper contact and some type. that is on an led-strip, but this is what I want. How did you do it or rather, where went I wrong??

Not sure where you went wrong, I get the same result as Pascal using the file you posted. All I did was move the green surface so it was directly behind the polysurface and used the settings from your screenshot.

-Kevin

Thanks, Kevin, for trying … I moved the base surface behind the polysurface too and still got the same weird result. I am wondering, whether it might be a problem with work memory on my MacBook – I am having problems with rendering too, when I apply an environment and turn it with this little dial to see which reflections I like best, it does not work if the file is somewhat complex. Need to try it out on my iMac when I am back home.

Hi Jan - in the file I posted, you’ll see there is a red surface behind your strip - that is the base surface - note it is not larger than the strip - there is no ‘gap’ allowance needed on this surface because the target already has the gap so to speak.

-Pascal

Hi Pascal - I keep having the same problem, using the file you posted. I can flow the strip itself, but when I do it with the grouped led-boxes, I keep getting the weird thing.

I will try it on my iMac next week – I still think it might be lack of memory with my MacBook … see no other possible reason …

But thanks for your help, I’ll let you know if it works on a different Mac.

Best - Jan

Hi Jan - I don’t think this has anything to do with hardware - try this: Make sure in FlowAlongSrf that AutoAdjust=No (for now) and when you select the base surface and target surface, click on corresponding locations:

-Pascal