The PTFE tubes are going out one by one. How do I fix this?
After some years of using our i3 Mk2S - multi-material the PTFE tubes are starting to get out when the nozzle clogs.See the attached image.
The problem is that now if I put the tubes back, they will not stay there and they will get out immediately. I tried to cut the endings but it isn't working.
How can I make the tubes stick in the extruders again?
You need to replace the Festos.
I had 8 or 9 of them give up after a lot of use.
Festos? Do you mean that small metallic pieces with blue collars which are screwed on stepper motors?
From where can we purchase them?
TIA for your support.
Depends where in the world you are. eBay may be cheaper if you want to buy a pack of 10, or you should have a local Festo outlet (Google will help with this) where you can buy in greater quantity, but a lot cheaper.