I have just finished my FT-5 R2. I am trying to get everything calibrated. I have a FT 2020 also and calibrating it made a huge difference in print quality.
I am using Triffud Hunter's guide as a reference. The suggestion is to command 100mm of filament through the extruder and measure what actually is extruded, then correct the e steps using the M92 Exxx gcode command. I am doing this from Octoprint.
The problem I am having is that changes to the e steps using the M92 command are not resulting in any effect on the amount of filament extruded. The default is 105 e steps, I have upped this to as high as 200 with no effect. I have verified via the control panel that the e steps are actually changing on the controller.
Any ideas? This worked great on the 2020.