I just noticed that my p1s printed models had significant differences in supported areas. see attached photos. this model is cut into halves. and one half is absolutely beautiful, but the other half turned bad in supported areas. not sure what is going on. anyone can point? cheers.
I’m using PETG filament and the layer height is 0.16 bed temperature is 75 and nozzle is 245
The bad one could be from a few things - moisture content in filament, possibly calibration, or something else. The bad one looks like what I’ve seen with wet PETG HF filament, though.
Not enough information to say anything else at least for me.
PETG HF is known for printing issues if not dried, though. Here’s a before/after drying example from my printing. First one shows a doughy looking surface with some lifting from the build plate. There are random larger layer lines. The second are the same parts and settings but after drying the filament. Surfaces are uniform, flat, no lifting, etc.
the Petg I used is dry. and I’m just wondering why the models were printed on the same plate, but showed totally different results in support areas. I assume that this might be caused by the uneven cooling fan.
I don’t know the answer to that one. Sorty.
It’s cooling, probably. The air coming out of the part cooling fan ducts isn’t totally omnidirectional. Were the supported surfaces facing the same way on the bed, or were they facing in opposite directions?
You don’t have and/or weren’t running the AUX and chamber fans, were you?
Show us a screengrab of the build plate with the objects on it.
But your print looks a bit blobby in other areas. I think your PETG isn’t dry enough. Maybe PA needs a tweak, too.
What @RocketSled said + PETG HF, PETG Basic, or another brand?
PETG Basic had hughe issues due to the defaults being way off. There are a number of long threads in the forum on that.
Just some speculation, is the seam here by anychance?
If you take screenshot at troubling layers showing lines, like retract and travel, would help us to understand more the problem.
Yes, that is the seam just right above the support. I solved the problem by re-doing the flow rate and changing the order of the outer/inner wall. Then it printed great!
I redo the flow rate and changed the order outer/inner wall. it prints great!
