Help printing ABS

[EZ-Corer]

Unless i missed it the one thing no one has said is, Do not have a fan blowing on the part when printing ABS!
what % infill are you using? the bubbling could be from your infill when it connects to the shell. also check the infill over lap.

[ServiceXp]

Why? I use a print fan after the 5th layer. I find that it improves the surface finish. (FFCP Hatchbox 220c/100-90c 60mms)

[EZ-Corer]

When I turned off the fan the warping stopped and delaminating went away.

[ServiceXp]

Thanks for the reply. That's the one thing about 3D printing, (like medical stuff) what works for some may not work for others.

[curious aardvark]

I used A fan with abs as it massively improved the overall print quality.

I suspect the most important thing is to have an enclosed print bed.

[Davo]

On ABS, we always use a fan at 50% after layer 5; never before layer 5. We use this recipe on all of our production prints.