The second photo looks like there is some underextrusion involved too.
this post was submitted on 10 Jul 2023
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The third photo is the bottom, right? It sounds like you've made the correct conclusion, that you need to calibrate the nozzle-bed distance better. Especially the dark filament looks like it was printed while the nozzle was too far from the bed. However I don't know how you adjust this distance on your printer. On a normal printer with a single nozzle and no probe you would do this by levelling the bed at a different height. On a printer with probe you adjust the "probe z offset" setting in firmware. But since you have dual nozzles there's probably some kind of calibration/levelling procedure specific to your printer that you need to follow. The transparent filament looks like it was printed at a better distance.
I would suggest that you try to improve the first layer before tackling the issues higher up.
Yeah I agree, Id say your white filament has good squish and blue one doesnt. I have 0 experience with dual extruder setup tho. If you are printing PLA glass bed is good
And avoid raft whenever possible imo
Id look at mouse ears as a replacement if you need to stop the parts from warping
I have very little experience (6 prints so far on an ender 3).
When is the last time you've leveled your bed?
I had a similar tubing issue (no idea what the term is) where there would just be random tubes off the objects body.
I manually leveled and printed again and the print came out fine.
Good luck