ZazaCast
Major Contributor
As far as I know they currently test curved rails at Igus Germany. Before christmas there was an email invitation to make product suggestons. My naive "christmas wish" was a carriage that can be used on curved and straight rails plus quarter circle rails that can be connected similar to the race car tracks of our childhood. To my surprise I received a phone call from Igus the next day. They thanked for the suggestion and said they liked my idea and that this will be tested. The man from Igus also said that the new hybrid bearings might do the trick.
I haven't heart anything since then but at least (if it works) there's a slight chance for curved DryLIn W rails. We'll see.
Yes... I asked about a curved rail over a year ago and was told the same thing.
Maybe they're getting closer now.
I've been looking at this other stuff for awhile now:
https://tech.thk.com/en/products/thk_cat_main.php?id=315