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Hi guys, I am printing with my flashforge creator pro, with ABS and at 230C Extruder, 105 Bed, 4200mm/s speed, and 20% infill. I know the design seems to slim but it is what my client wants. As I have said I do not have any warping issues during printing, my warping occurs after and when I remove the part and it starts to cool down. Anyway check the attached photo, and thanks for the response,. This happens to all my thin flat large parts. Please help.

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Have you tried letting the bed cool down to room temp before you remove the print?

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Hi Robert,

I did let it cool down before removing, and on another print I even placed it in the cooler just to make sure it is cool enough, but with the same result. I am using ABS, with infill of 10% infill, and object size almost covered the whole build plate. I was happy that I did not get any warp, but sad after I removed the part and discovered it warp inward. It is very hard to find a solution online since I feel that I am the only one having this weird issue. Any ideas, I would really appreciate it. Thank you.

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It looks like extreme shrinkage, but the raised part on the right prevents that bit from shrinking as much. Does it happen with other colours or brands of ABS or just this one? How thick are your perimeters? Also, you’re probably printing ABS for a reason but PLA would be easier.

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Hi Robert,

Thanks for your response. To answer your question, yes it does happen to most of my thin(less than 3mm thick)-large-flat prints, and only to that kind of designs. Yes there is a reason on why I use ABS, it’s actually clients choice, and against my advise. So yeah don’t have a choice on that one. But I would really like to get to the bottom of this issue. Do you think if I increase infill it would minimize bowing, since infill makes it warp upward?

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Increasing the infill couldn’t at least hurt. It’s worth a try. Perhaps printing on a raft would help as well? That way the temperature difference between bottom and top while printing would be less.

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15% minimum infill for abs anything less I’ve always had warp issues. Also if you are warping on the same side consistently you might not be level. Also print at .1 resolution. Final for me best stick the closer the extruder is to the build plate the better. Good luck

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Try using extra skirt and brim and as Robert says let it cool down with ease, do not remove instantly

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Thanks all, I will try to do your suggestions :

1. Let object cool naturally

2. I will use brim or raft so that bottom layer will not be so hot

3. I’ll increase infill to 15% and maybe change it to grid style instead of rectilinear (simplify3d)

Let you guys know how it goes.