Attach the bearing to the knob with an 8 mm long M3 screw.

Insert the diametrically polarized magnet into the center cutout over the screw in the bearing. The magnet will fit snugly into the cutout and stick to the stainless steel M3 screw.

Attach the AS5600 to the sensor mount with four M2.5 screws and nuts. The front AS5600 text label on the board silk should be facing away from the two mounting hole standoffs that are slightly taller.

Insert the QT Py RP2040 into the QT Py mount.

Connect the AS5600 to the QT Py RP2040 with a STEMMA QT cable.

Now you'll stack the components together inside the enclosure with four 25 mm M3 screws securing everything.

Start by threading the M3 screws into the bottom enclosure. Insert the QT Py holder with the mounting holes aligned with the USB port facing towards the cut out in the enclosure.

Insert the sensor mount by aligning the screw holes with the enclosure and QT Py mounting holes. There is a longer set of stand-offs on the mount. Those should be opposite of the USB cutout so that the AS5600 silkscreen text is facing towards the USB cutout.

Continue to thread the M3 screws into the sensor mount standoffs. 

Line up the bearing mounting holes with the sensor mounting holes. Continue to thread the M3 screws.

Once the M3 screws are fully threaded into the enclosure, the assembly is complete!

If you are concerned about screws on your desk surface, you can add some bumpers to the bottom of the case.