Una has fallen...

Una, my Ultimaker original 3D printer, has been happily printing out bits and bobs for the last week or so, although I have been needing to use higher and higher printing temperatures to get a decent flow of material through the print head. Not a thing that should be happening on the way into summer. Anyhoo, today I set her off as usual and went back to check on progress, only to discover that she had been waving her print head around for an hour or so, printing nothing.

So, I took everything to bits to discover that the filament had melted into the end of the Bowden tube (the tube that delivers the filament to the print head). This has produced a pretty solid blockage which is not going anywhere in a hurry. I think it was caused by the little PTFE fitting (the white bit in the picture above) wearing out and collapsing.

So, no more 3D printing for a while. I’m going to have to track down some spares.