arc disassembly: 2011 edition
tools needed: hex (allen) keys: 3/32”, 1/16”, 0.05”
below: use 3/32” to remove enclosure screws
if the plate is tight, push the tool through the enclosure hole to apply pressure to the plate.
unlatch and pull the ribbon cable from the usb board.
remove the mounting plate using a 1/16” hex.
remove the knobs using a 0.05” hex.
the hex nut should hand-removable.
hold the edges of the encoder board near the connector when removing.
the ribbons are now accessible.