print splitting

Can anyone tell me what I am doing wrong that this part is splitting as shown in the attachment? I am using Village ABS with the out of the box profile for ABS in Simplify 3D. Thanks.

Looks like pretty standard ABS layer splitting. Turn off the part cooling fan, add an enclosure to the printer. Those should help. It’s just part of the reason lots of people don’t like ABS. Doing those two things, I can pretty reliably print ABS on my Mini.

also bump the print nozzle temperature to 240 or higher.

I agree on upping the heat. Unfortunately, the sheer size of your print is going to virtually guarantee splitting like that. There’s lots of shrinking plastic to pull up on previous layers.

Would a high layer height also contribute to this? I see the default in S3D for ABS is .38, but in Cura it is .22. Seems like a big difference.

Will the lower layer height improve cohesion between layers and then produce less splitting?

nGen is looking pretty great after this big fail with ABS…

Smaller layers can help, but the main fixes are higher nozzle temps and enclosures.

Yea. Granted this is the first time I’ve tried ABS… I upped the head and bed temps, but as you can see in this photo, much the same result. I think the enclosure is needed to keep the vertical elements warm. White version is nGen, green one is ABS. As you can see it is still totally delaminated.

if you are still getting splitting with ABS, your nozzle temperature is still too low, or your fan is still too on. An enclosure does help, and thin wall parts are most difficult to print, but it is possible to print things like that in ABS with a Taz without an enclosure,

Yep… piercet and ttabal provide the best advice. Turn off the fan or use minimally (<60%), extrude a little hot.

Try covering your print with a blanket as a temporary enclosure. In the winter, I us a basic enclosure made of coroplast sheets found at the hardware store. Check that your printer isn’t close to air vents either… the environment does play a lot into good ABS prints, hence the enclosure to control).