Worth a try dropping it into AngelCad, that generates stl's much faster from openscad files. https://forum.abmesh.com/index.php?topic=70.0  You may be surprised at the speed difference, I was, a few days ago. On 09/04/2021 15:12, superaorta@gmail.com wrote: > Folks, > > Thanks so much for your help. > > I've implemented both the hull() and the sweep() methods and both work > but the > sweep is fastest. I'd never seen this library before but it does <exactly> > what I wanted. > > One final question: my final model has many (100s) repeats of this simple > shape and, even with the sweep() method the final render is very slow (how > slow I don't know yet but the memory requirements seem sane). > > At the moment I'm saving my shape to .stl and then tiling this .stl file. > Perhaps with the sweep() function I should skip this step? Clearly I > need to > benchmark both approaches but while I wait for the final render would > anyone > care to guess which would be faster? > > Thanks! > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org