- tray.pl (zf): lower floor by another mm, leaving 3-4 mm of material
- tray.pl (vd): increase vial diameter by 0.1 mm to allow for vial
tolerance and material expansion. Also, working from the inside to the
outside (instead of plunging into uncut material first) decreased the
hole radius slightly.
- tray.pl (do_cols, do_circles): removed exclusion of the first column
radius after vial
tolerance,