I can confirm the indestructible bit, having printed a croquet mallet in TPU for AMS. Belting a 454 gram ball so that it travels over 30 metres across a lawn is a pretty rigorous test. (Actual striker face printed in PC, but only 4mm thick, so the TPU takes some punishment)
I did find a few good uses for it:
I also use it is some dual material H2D TPU prints, 95A + TPU for AMS. When I need one part of the print to be more stiff.
When printing tpu mixed with PLA, make sure you manually set the filament changing flash to 900 . Otherwise, PLA may contaminate the tpu to reduce the layer bind. But tpe for ams is really not very fun material to print.
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Did you end up finding better settings for Bambu TPU for AMS for layer adhesion?
What are your settings? Default Bambu TPU for AMS?
I think i did slow down and increase the print temperature a but for best results… HOWEVER! I have since found a FAR superior product for strong flexable parts like RC car parts, etc its from CC3D called TPU 72D and its has a mix of nylon! I found the bambulab tpu for ams would deteriorate over time and eventually become quite weak. This new one is far stronger to start with and remains that way. Easy to print with too! I started with settings for generic TPU for AMS and I did tweak them a little, do some search online