After a long time of ignoring it I've finally been trying to get the 3d printer working nicely again. It's an original Prusa i3 Mk2 for anyone interested. I've had it about 9 years I'd say. Or since whenever it first came out.
The current project as some may know is an open source telescope. I ordered a load of new PLA for this and everything but the black colour is Filamentum brand, the black is Prusament or something, Prusa's own brand. Annoyingly this is pertinent as the black has a different temperature recommendation to the Filamentum. And it also did this:
To be clear there are 5 separate prints here. The Upper Tube Assembly with the hole for the thing Brian gave me, the Lower Tube Assembly which I think will house the primary mirror, then for each of those a separate inner liner in black to aid reducing any reflectivity. The last was meant to be a baffle, whatever one of those does. Except it went rather wrong as I don't think baffles are meant to be... That shape.
Now I have the fun task of problem solving. One can see it started OK, which is the thin crescent shape that's about 5mm high within the mess. But somehow it got knocked off the print bed and obviously it can't print in thin air.
I slightly regret not sticking to one brand, but the Filamentum black had flipping glitter in it for some silly reason.
