Did you calibrate the extruder when you changed filament? That's the critical step I was missing when I was starting out, and out of all of the other calibrations is the one that 's going to affect how the filament is initially laid out.
Find/ make a plain cube model. 20mmx20mmx20mm.Aha! no sir, I had no clue I had to.
Yeah I have never found the need outside of one finicky filament sample I got in a sample box. This is essentially what material profiles are for though. Use the multipliers to adjust flow if absolutely required but leave your steps / mm alone IMHO.In all honestly, I never do this besides once for each filament type.
Yeah, I was looking at the ones on aliexpress, but I think the amazon.ca creality storefront has a kit for $70 so I'll probably go that route just to be sure I'm getting the real deal. When half the ads for a product are pushing the word "authentic" it's probably a good time to be wary....A good inductive sensor is more consistent w/ results and less prone to issues as there are no moving parts. However it requires a thick aluminum bed. No glass, no plastic print surface (except for 0.1mm thick).
For the Ender 3, the BL Touch is probably the best you can get. There are lots of fakes out there. So make sure you are paying for what you get.