I’ve recently become responsible for a Taz 5 dual extruder. I do not know much about its history or previous problems so am just taking things at face value for the moment. The filament being use is Chromastrand Innova 1800.
The dual extrusion feature is really gnarly… The in the images below, the white (T0) does not want to adhere to the red (T1) on beginning layers. The red support prints cleanly and smooth, but the white is nothing but enormous blobs and gaps in the surface. The white has huge drips dragging all over the place.
The hobbed bolt is clean and fine.
The nozzle is not clogged.
The nozzle is clean/wiped itself
The filament is extruding fine and there is no shearing/flaking.
There is gluestick on the bed and I set it to do 5 skirts so it gets a nice clean extrusion from the get go.
I have tried both an ooze shield and a wipe/prime tower. Doesn’t matter which I use, the result is the same.
When printing in single color, there are no issues. The surfaces are smooth with minimal blobbing.
Any tips on where to go from here?