Correct, I will redo some screenshot to make things clearer. Thanks for mentioning it.

Cool idea, thank you!

This is not normal, make sure the belt is correctly inserted in the X carriage (completely pushed in). Also check the idler is not wobbling, belt not damaged and no excessive tension is applied to the belt

It is extremely hard to get the X belt in the middle due to how the X axis is structured. I have done several improvements compared to original axis (like screws on steps 5 and 6 here) but the X axis is always going to be unstable unfortunately. In general you get the opposite effect, belt is going in the direction of the extruder.

Better without mainly to avoid people using the textured sheet which might not be very reliable.

No I mean moving from their pocket. Dual bearings will definitely add a bit of friction to the smooth rods because of small variations on the bearing manufacturing and the plastic parts. The clamps are design to put similar pressure but if you tighten it very strongly you might increase friction and this is not what we want. A bit of friction is fine.

Esteps is not an accurate setting as it is hard to measure precisely and like for extrusion multiplier it depends on the filament.

It might only be necessary to calibrate estep if you use several printers. In this case make sure to calibrate estep with the same filament from a quality manufacturer.

Definitely a good idea, thanks for sharing it!

Prusa changed several times the hardware coming with the extruder and the latest version does not have M3x25 screws anymore. Please refer to our BOM for all the necessary hardware.

We need to keep some margin for this one unfortunately.

This one is a bit more difficult as there is the bridging, I need to keep some margin for not perfectly calibrated printers.