I've designed a few other turning or tipping zig zags but this is definitely the best one so far. It works 99% of the time, it works very smooth and is easy to build. You can always watch the video to see it in action.
If there are any problems/ questions feel free to ask me in the commets below.
Thanks for watching/ building,
If you don't have the small black tyres, you can just use 2 blue spacers per tire instead.