We have been experimenting with our new dual extruder and have been having some great success. However we are having minor issues with the Wipe and Prime tower falling down on occasion.
The issue seems to me that Cura is choosing to use the 2nd extruder to lay down the first layer of the tower. This is an issue since the bed temp is usually optimized for the first extruder filament.
For example, we are having good success with NGEN in extruder 1 and HIPS in extruder 2 for support (the HIPS just comes off so easily without the need to even try to dissolve it with limonene). But NGEN likes the bed to be around 80-85 degrees. HIPS seems to work best between 100-110. But since NGEN is the primary filament for our part we need to set the bed at 80-85. And since Cura lays the first layer of the tower down using the HIPS, the tower does not adhere as well as it could.
My theory is that if we could get Cura to lay down NGEN first, then the tower would work better. Any ideas how to make that happen on my own?