It’s here! NinjaTek, 3D printable synthetic rubber. But… when? Okay, this is actually quite old, it’s been around for like 5 years? So, really, it’s not like this is recent innovation to be able to 3D print rubber on FDM (Fused Deposition Modeling) printers.
20200805/DuckDuckGo ninjaflex
20200805/https://www.bhphotovideo.com/c/product/1407488-REG/ninjatek_3dnf1417505_ninjaflex_tpu_flexible_filament.html/?ap=y&smp=y&msclkid=9093c8df674510961bce97f4e5329d82
20200805/https://www.amazon.com/NinjaFlex-TPU-3D-Printing-Filament/dp/B00WFD94E8?th=1