For eazy swap nozzle, i add conectors for termistor and heaters. And this is simple holder for cables and connectors ;)
5/10 Pairs Mini Tamiya Style Battery Connectors Plugs Male And Female Plug Sets with Nickle Pins for RC Hobby Car Boat Plane
https://www.aliexpress.com/item/4000490325768.html?spm=a2g0o.order_list.0.0.35c11802WMzLWE
10sets/lot connectors SM2/3/4/5/6Pins Pitch 2.54MM Female and Male Housing + terminals SM-2P SM-2R JST SM2.54mm
https://www.aliexpress.com/item/33005540869.html?spm=a2g0o.order_list.0.0.35c11802WMzLWE