Re: Problem with layer adhesion (I think)
Wish there was some marker letting people know when they had .35 and .4 nozzles. Is the SD timestamped, or just that serial number on the back?
Regardless, the change in slicer will take one second to test.
If that is not the case (and like Ian said, if that was the problem, then your wall thickness would not be any good) I have one lat thing to offer: Double check your EEPROM settings in Repetier for steps/mm. There is something in the firmware that reloads defaults, so maybe your steps/mm on the Z got switched back? That would also take one second to rule it out as a possibility.
I think the nozzle diameter could have been my problem. Changed the nozzle diameter to .4 and kept all the other settings.
Retraction
Length: 1.5
Life Z: 0
Speed: 50 mm/s
Extra length on restart: .3
Minimum travel after retraction: 1mm
Retract on layer change "Yes"
Wipe before retract "Yes"
Extrusion Multiplier: .8
All extrusion widths set to .42
Measuring the single walled cube I get .4 for my wall width so it looks like I can now calibrate my nozzle correctly. There were some sparse parts on the single walled cube but I think they have to do with my retraction settings. See below:
You can see it looks like I'm retracting too much, so I switched off retraction setting for a print I'm running now. And here's a picture:
There isn't any sparse parts any more with no retraction on, and the vertical band where each layer starts isn't particularly visible here, at least not when it's at the corner of a square. Things are looking much better! The picture above is from turning off retraction and setting the flow rate from .8 to .84 so now I'm doing another print with everything the same but flow rate changed from .84 to .82 and I'll check the wall width after that.
Edit: That print finished and two walls gave me .44 and the other two gave me .43 so I'm going to change the flow rate from .82 to .815 and see if I can get it perfect.
Edit2: The .815 flow rate print finished and I'm getting .42 on the best walls, that's good enough for me! Going to try a print at .1mm layer height now to see how that fairs without messing with any of the other settings.
Thinking back it seems to make so much sense that my nozzle size was off, since it seemed like the extruder wasn't moving x, or y amount enough per line it laid down. However having the nozzle size wrong just never occurred to me.