I have lost more ABS prints to warping than I care to total up. The first layer goes down beautifully, the part climbs a few centimetres, and then the corners curl up off the bed like stale bread. PLA never did this to me. ABS just wants to shrink as it cools, and an open printer in a draughty garage gives it every excuse.
The fix everyone tells you is a heated chamber. The fix I actually did, after weeks of telling myself I'd build a proper one, was to put the printer in a cardboard box. Genuinely. A big appliance box, a hole cut for the spool, and the lid loosely on top. The waste heat off the bed and hotend brought the inside up to around 40°C and held it there, and the warping mostly stopped. Not eliminated, but the difference between a usable part and scrap.
It is embarrassing how well it worked. I'd been mentally pricing up acrylic panels, hinges, a silicone seal, maybe a small heater and a thermal cutoff so I didn't burn the garage down. All sensible, all on the someday list. The box cost nothing and bought me the data point I actually needed: the problem was air temperature and draughts, not bed adhesion or some exotic slicer setting.
A proper enclosure will come eventually. Insulated, vented when I'm printing PLA so I don't heat-creep the hotend, with a thermometer I can read without lifting a flap. Until then the box stays. The lesson, again, is that the cheap experiment usually tells you whether the expensive one is worth doing.