A motor signal smoother used to dampen subharmonic oscillation during printing, leading to smoother print surfaces. Particularly useful for the DRV8825, but can be used with the A4988 style drivers as well. Not recommended for TMC style drivers.
Doesn’t fit on an engine ender 3
These TL smoothers provided a marked improvement in my Ender 3 Pro's performance. There was a substantial reduction in salmon-skin and a noticeable difference in printing smoothness. Print quality overall showed a definite improvement. I only implemented 3 smoothers (extruder, x and y-axes). There didn't seem to be any advantage to installing one on the z-axis. Overall, very pleased with the upgrade and highly recommend them, especially at the very low price offered by 3DPC.