Inserting the Filament Tube in the connector


I am currently installing the upgrade kit for the Flux and when trying to insert the filament tube in the connector at the top of the printer in will not stay in.


In general if it does not stay in, you are out of luck, unfortunately you have to replace it. You can wiggle it a bit to see if it will grab the tube, but if it is worn-out, it may come off during printing and ruin you print. You can see some postings on this issue if you make a search for “PC-4M5” or “PTC connector”.