first few layers of ABS print are smaller, the rest is amost perfect.

Hi all

I jumped now from PETG to ABS, and I already start to like ABS.
much easier to setup until now. But I have a small problem and that is that the
first few layers are it seems shrinking, and after a few layers it stabilizes and starts printing perfectly strait.
Head bed is set 110 degrees, but I think it did completely reach that temperature when I started printing
So will fix that by waiting longer and will implement a contact less temperature sensor above the bed.

I also read that I have to reduce the temperature of the head bed after first layer

So this is what am going to try tonight but is there anything else to try to fix this ?

Edited 1 time(s). Last edit at 03/30/2016 05:39AM by amigob.

I found the Print Troubleshooting Pictorial Guide there I found this picture



I only have a a lot less
So fixing the issues I mentioned should should fix the problem, maybe even reduce the first layer temperature.

Edited 1 time(s). Last edit at 03/30/2016 06:50AM by amigob.

almost perfect ??



I reduced the bed temperature with 5c to 105c
I also reduced the min layer time to 15 sec.
I really like the quality.