I just wanted to say a big thank you to Foehnsturm, Tinkergnome and everyone else involved in the development of the Mark-2. This is a fantastic modification, managing to do 2 colour prints on a UM2 when Ultimaker had already given up on the idea!
I've now got my 2nd head working and after some painfully frustrating setup (my fault no-one elses!) I've managed to print a few sample pieces.
I think I need to dial in my 2nd extruder (orange material in following photos) as I seem to be suffering a lot of ooze. Printing with an ooze shield definitely helps, but I need to