The top part of this unit is somewhat uncomfortable to open. For my setup, I only use the back hole of the dryer, so I designed a simple knob/handle that makes things easier. No need to modify the dryer, just print and plug.

I printed this model on a X1 Carbon and a A1 mini and both prints came great, but if the knob doesn’t fit properly scaled it down/up by 1%.

Check out my other design for the Sunlu S2 to get a good fit with the PTFE tube: https://makerworld.com/en/models/45541#profileId-63411