As stated earlier, ABS is prone to warping and layer adhesion issues. Usually, in ABS 3D printing, the upper layers are slightly colder than the bottom ones because they are far away from the heated bed. As a result, these upper layers will contract more, and if the contraction force exceeds the bed adhesion forces, the first layers will start to peel away from the bed’s surface.
To prevent this and increase the surface area at the bottom of the print, it is necessary to use brims or rafts while printing with ABS. You can even use an ABS slurry instead of a glue stick to ensure that the ABS print sticks firmly to the print bed.