try to use screw_21.rb, It's very quickly to make spiraling tower.[image: 7mEd_tower.jpg]

Hello Anssi Thanks for your two sents. NEver heard of that problem. But it´s not that either. The model is entirelly created in SU and is pretty much build around the point of origin. Oh well. I got the pics in the end. Can it be that SU is still a pretty buggy app?

Thanks Juju. Now I know it is a bug too. I used Quicktime Pro and erased the frames in quetion. In fact, my last animation had so many "flashes" that I quit SU, restarted my machine while tossing all chaches and exported it anew. Now I was only left with the flahes at the exact exact transition point which where then easy to erase w/out too much damage to the animation. Truth to be told, I keep pondering if I should put money into my SketchUp skills with all the drawbacks, known bugs and limitations. Maybe I rather pay for tutoring in an established 3D programm like C4D or something. I still can construct in SU but do animations and rendering in C4D. Any suggestions anybody? Thanks Wolf

Hello Susan Well, it is almost closing time here too. Means it´s prolly deep in the middle of the night at your place. Thanks for the tip with attachment. I guess I was just too warped around work to see the tree in the woods. I´ll attach the data, then. Hmmm. Too big to attach. I´ll provide a new working link then. http://www.notneededanymore.com/emptypromise Anybody else got a guess or a tip? I´d hate having to start over again. Wolf