Installed and calibrated the dual head today. So adding to my observations earlier:
Good:
- Auto-Z levelling - that is sooo nice! Had to manually adjust the left by -0.05 mm and the left by +0.05 mm, but that’s not really an issue.
- The calibration procedure is well thought through - only suggestion for improvement: include a chance for Z-height-adjustment for both nozzles during the X/Y-calibration. Like printing a longer line with each head for fine-tuning the Z-offset.
- The nozzle change mechanism is really clever. I like that!
Bad:
- The feeder levers - others already reported that, and mine are barely holding (yet), but on the right nozzle I heard the extruder clicking and pressed the lever back in place before it popped. I guess I’ll need the ominous “repiar kit” also…
- It would have been absolutely no problem to mount the head 2 cm higher - there’s enough room to the enclosure roof!
Minor thing: Found a “bug” - temp management with the test cross needs improvement.
I used firmware 1.15.13, and yet did not run into any issues, but beyond calibration I basically did not do anything else.