VIDEO (in Italian) - https://www.youtube.com/watch?v=Faah33z4IVw
READ - Blog post about TL-smoother (in Italian)
BUY FROM GEARBEST - TL-smoothers
BUY FROM BANGGOOD - TL-smoothers
TL-smoothers are pieces of electronics that can improve the surface quality of models printed with the Alfawise U20 and many other printers. Here are my tests, where you can see models with the "salmon skin" and without it, of course printed with TL-smoothers installed. You need at least 3 of them, for X, Y and extruder motors. In the video I show how to install them - the video is in Italian, but it is very easy to follow.
TEST MODELS
DOWNLOAD - 3DBenchy
DOWNLOAD - Woman body