had to set print speed to like 30mm/s (as opposed to 50mm/s), bed temperature to 100°C (ass opposed to 80°C), and painstakingly adjust z-offset until it stuck to bed without scraping the bed. First layer is a bit thin but it gives a nice visual indication if parts of it unstuck (they become lighter in color). Still, were on verge of failure because one of supports got partially unstuck and started wobbling, because the thing strings like crazy and i have to set retraction distance and z-hop to higher values often it leaves a "needle" where it retracted and nozzle can sometimes hit that needle, knocking the entire structure. Also because of humidity i guess ABS makes a lot more pops/bubbles and unlike PLA when that happens it doesn't come out thinner it just doesn't come out at all, so lower print speed counteracts that.