A Followup on the CR10S S5 So I've been tinkering with the printer for about a week now. All of my planned upgrades have come in and some of them ended up not needing to be upgrades, I'll talk more in detail about that below. For those not wanting to read the whole article, the short of it is I've pretty much dialed in the settings with the new extruder/hotend using 3mm filament, and I am impressed with the results.