Can anyone help me fix this issue. It doesn’t happen every print but it happens on about 50% of them. I have my outer wall set to 100 and my inner wall set to 250. Print temp is 250.
I was struggling last night too. This isn’t perfect, but I made some changes that has helped a ton. I also went much higher with the temps and kept the lid on.
This is starting with the Generic PETG and .12 Fine presets:
First Layer Temp: 255C
Others: 262C
First layer Height .30
Default Line Width .43
First Layer Speed: 30mm/s
Outer Wall Speed: 100mm/s
Inner Wall Speed: 100mm/s
Uncheck Slow Down for Overhangs
Bridge: 100mm/s
I THINK that was all, and the result was much better. Still needs some tweaking, but I think I have it close.
I print Atomic PETG black and silver with X1C with excellent results.
Noz temp: 250/255c
Bed temp: depends on area of part, but usually 70- to 90c
Part fan only for overhangs and small parts, minimal use.
No chamber fan
I can not tell if your image is a side, top or other.
Show more pictures of the fault area and overall part so we can analyze it.
-Uman
If you get any closer please update me! Still having some issues.
I also have a really big issue if I print more than 1 at a time. All of them turn out terrible.
Looks like part sides are drooping under heat build up.
Force the part fan On 90% at wall layer beginning.
If part warps from build plate, reduce fan speed.
Also try printing the walls will total loops (no infill)
At 150mm/s @ 255c
I’ve had excellent results with Atomic PETG filament.
-Uman
How do I force the part fan to come on only at the wall layer beginning?
So you kept your fans on? What Atomic PETG color are you using?
This example is similar to your print and requires fan at layer 22+.
No cooling for 22 layers set.
Keep fan aways on is checked.
After 22 layers, the part fan will be forced on at 20% +.
In this particular model, layer 22 and above, cooling is required.
Or …
Set layer time threshold (10 secs here) to trigger the fan and uncheck Keep Fan ON, if this does not interfere with other layers.
Layer time can be determined by pull down windown for layer time and verified by fan speed pull down.
Cheers,
-Uman
This is my layer time. Would 10 sec still be best? Also if it’s not too much to ask is there a way you could show your full settings or maybe send the preset so I can get all the settings right?
I’m not just not sure like infill time and overhang time and so on. I’ve tried changing so many things that I don’t really have even a base map anymore
Thanks for all your help so far I really appreciate it!
Also not to sure how to turn off the chamber fan
I will make some assumptions and try to get you a base print that works.
This is crude, but not knowing your model…this is best guess.
These are the basic settings for a draft print.
In my opinion, this thing would be printed as a solid; 100% infill.
Set filament to generic PETG
temp: nozzle 250 first layer & 255 others
cooling: no cooling for first 5 layers
min fan speed 20 / layer time 10
keep fan on: checked (part fan stays on and blows 20% after layer 5 to cool vertical solid walls)
aux fan 0%
No setting for chamber fan; let it be.
Set layer to extra draft (0.28mm) tweak later
wall loops 5 (produce solid walls, more loops if needed)
first layer speed=50/infill 100
other layer speed=150 all
Message me if you want more details.
-Uman
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I’ve printed two rolls of Atomic PETG Pro filament without too many issues. I print with plate at 75c and filament at 260c for the entire print. Print in silent mode or about 15% higher speed, but I find standard speed introduces some occasional artifacts, so I go slower. I keep chamber fan at 90% (which is nice because that is about half as loud as 100%), part fan at 0 for first 5 layers and then 40%, check “keep fan always on” and check “slow printing down for better layer cooling”. I am printing inner outer infill. I use more walls and as little infill as possible (though I don’t recall why, somewhere I had read to try that). My prints are quite nice if not perfect.