In order to print TPE on my ender 3, first i tried thing:2144277. But after 10 wrongly cuted PTFE tube, i give up. Then i found this remix by konrad_3d (thing:2853137). But after printing it, i found out that the hole for filament is too tight, and i was lazy to go and buy 2mm drill since i didn't had one. So i drilled 2mm hole in TinkerCAD. And now it works amazing! Without drilling :D.
P.S. Everyone said that you have to extract more plastic with TPE and TPU. But i found out (via trail and error) that i had to lower my extrusion from 1.05 on PLA to 0.90 on TPE. What happens is that a lot of pressure is accumulating in PTFE tube and it's causing extruder to drill filament after some point instead of pushing it. Lowering extrusion multiplier that pressure is much lower/gone and i was able to print easily with 45mm/s without any trouble of drilled filament and failed prints :D.