I expanded the fox transfer inner press from printables (Jeff Hudnut) and printed this tool to perform a mini service on a Fox Transfer 2018+ dropper post. The tool separates the seat post so you can clean and lubricate the top rubber seal. Refer to Fox instruction about how to perform the procedure. You might need to adjust the number of space but my 150mm seatpost required 2 spacers+inner press+hollow crew. It allows easy separation of the seat post without complication, worked well for me.

Printed at 0.16mm layer heights and 50% infill using PETG. It allows crisper threads.