Hello,
H2D, SUNLU PLA+ 2.0, dried about 6 hours, 0.4 and 0.6 nozzles
I have problem printing a part with decent quality. The bad print quality is always on the same places on the print. Filament was dried. What I can check?
Is that side of the print by any chance have cool air blowing directly on it during the print?
@TurboManELou chamber is closed in h2d as you probably know, but top vent is opened during the print. I dont know how exactly air circulates in h2d.
Right now Im trying H2D Belt Tensioning Procedure | Bambu Lab Wiki
The Aux fan may be enabled in filament profile, which can cause issues on that side of prints (left side when looking at the printer). I’d try disabling it in that case.
Overall for wall quality on my H2C I typically need to slow things down, and especially the speed transitions.
The speed and fan colored views in the slicer can help highlight problem areas, especially compared to an actual print.
Speed and fan could account for the wavy bits, but I don’t really understand the rough patches though. Looks like nozzle scraping on a top surface due to warp.
-Max
its on the right side when you look at chamber. Belt tensioning didnt help. I moved an object to the left to see if that will help. Also I hear some weird sounds when its printing. I will try to record it
One other place you could check is how thick the walls of that object are. I made a container last week that the outside was looking really messy and I couldn’t figure out what was wrong with my printer. Parts of the print looked okay, but other parts of the walls were a mess not too unlike what you have there. In my case, it turned out that I had decided for some reason to make the walls of my container thinner than I had been designing for in the past. From what I understand you want to make the walls a multiple of your nozzle diameter. So when I made my walls 1.4mm thick, that no long was a multiple of my 0.4mm nozzle. Changing the walls to be 1.6mm thick seemed to have made all the difference to the quality of my print.
Of course, that could just be for me… and something still could be wrong with my printer, but I thought I would share just in case it helps.
Turn chamber air down low
outer wall speed down to 80
Classic wall generator uses “gap fill” to fill in areas that should be wall and have no room for infill, but do not divide by the wall LineWidth. It tends to do undesirable aesthetic things [IMO]. Arachne will fluctuate your wall LineWidth so that you get an even number of slightly fatter extrusions that add up to the same width.
Very important thing which removed small artifacts on edges, that almost made print looking perfect was to change z hop type from auto to slope, not spiral in printer settings → left/right extruder.
Other thing that helped was change to arachne.
Thanks!