Hey @3Dken

So as you are finding PETG is a bit tricky to print with and for the most part it is going to be rather difficult to stop the stringing.

I would say that the best bed to is keep playing with the Retraction speed/distance in conjunction with lowering your nozzle temp a bit. After that I think it is best to adjust the fan speed settings for the part cooling fan.

You can always upload a few pictures of the issues you are seeing and we may be able to spot out something and advise a bit further.

Thanks!

We don't yet support different size nozzles in the same print but it is in the road-map. We just shipped 1.7.0 with lots of updates to path planing in the slicer and our focus is going to be on editing tools as the next big feature. Once that is in we are looking to do lots more with multi material printing including various nozzle sizes.

Thanks for the kind words.

Lars.