To help, more information may be necessary. You could link the factory file and some images/youtube vids, or share the general settings:
- ABS manufacturer and/or their recommended starting temps
- hot end temp that you're using
- print platform temp
- fan temp
- print speed
That said, based on the limited info given, it sounds like either your ABS is cooling too slowly:
- You could try printing at a lower temperature. Each ABS color will print differently, but generally I've found that 230-245C works well for most colors.
- You could lower the print platform temp to help the fresh extrudate cool faster. Depending on your substrate material, this will vary. For polycarbonate, which is what I usually use, I have it around 60C. For PEI/Kapton tape, 100-120C may be ideal. Try lowering it incrementally till the part stops sticking, then raise it back up 5 or 10C
- Print slower till you get a better handle on using ABS. Slower prints = more forgiving overall, and will help you troubleshoot.
Edit: try to minimize fan use. As you observed, the mechanical properties suffer. If you must use the fan, then keep it low, at maybe 1/4th as high as you use the fan for PLA, ie. if you use 80% fan speed for PLA, don't go higher than 20% for ABS.
OR your ABS is not sticking to the platform properly:
- Print slower
- Try a different substrate/tape material
- Level bed on-the-go. Most printers have a utility to help with bed leveling, but nothing is better than doing it while a skirt is printing.