Pump my moka is the ultimate Moka for coffee extraction. 
It enables you to select temperature and pressure with a chemical thermometer and a bicycle pump, without spending 4000€ or more for a variable pressure coffee machine.
Temperature range is from 60°c to 90°c
Pressure range is from 0.5 to 2 bar (~15 to 30 psi)
Extract your specialty coffee with all the flavors and fruity notes.

Once you have finished extraction, disconnecting the pump needs to wait some time for the inox insert to cool down, this keep the coffee in the extraction chamber and eventually it dry up and can be difficult to clean. 
Instead I made this tool to disconnect the hexagonal insert by pushing on the spring ring on the Moka pot bottom connector.


The tool also have a hook that retains the inox insert along with the tube in place to avoid bashing into the glass of an induction top or your kitchen furniture.

Printing instructions:
I printed it in PETG, PLA should be good as well.

Assembling Instructions:
After printing assemble the tool inserting the tube hook in the extractor until it arrives to the second ring. 
Some force may bee needed: if too difficult sand it a bit.