Bed without Kapton tape

The Kapton tape on the bed started looking a bit tatty, and as an experiment I tried printing ABS directly on the plate glass. Initial prints show that the workpiece does not stick as well as to the Kapton tape, but it does stick and does not warp.  For the moment I will keep the glass bare and at 110 degrees, and see how that goes.

Acceleration of 100 mm/s/s gives good results, as well. Slow but smooth.