To remove the shaft from your Gyre please do the following:
Remove the cages, propellers and propeller bushings until you are left with just the motor block and the shaft. Hold the motor block in your hand with the shaft vertical and the side with the star bushing (driver door - see attached picture) facing upwards. Gently tap the opposite end of the shaft on a tabletop or other hard surface until you see the star bushing begin to move. Once the star bushing comes out enough to be able to grab it; take a pair of regular pliers and GENTLY grab around the bushing and pull it out of the motor block. You will then be able to remove the shaft and the motor block bushings.