These are 90 degree turn with a 10 degree bank hot wheel tracks with joiners. Its input / output are level so there is no drop in this design. The tongues are designed to be push together / pull apart, which is showing to be easier than the push button design but time will tell how this new design holds up.
Step and Fusion 360 files are included if you want to modify the design.
I print with a cheap dehydrator to heat my printer chamber and have no delamination problems with ABS. Worth trying if you are having issues with ABS delamination.