The idea of interchangeable nozzle for UM2 is great, however, I was not able to check out its realization.
On Sept, 21 I have ordered the thing at http://www.3dsolex.com and have paid for it using paypal. Even thought I have checked the box "tracked shipment" and paid for it some extra money, I have not received the shipment, nor any proof the shipment have been ever sent.
Once I received an answer from some Carl Beck :
DeAr Vladimir! I am in Hong Kong. I am on oslo Friday 25. Them send u tracking!!
Thank you!
But ever since I have just been ignored.
No custom heater block, no money, no answer.