The rest of the BOSS plates are machined

The turntable's 32 ring bolts sit in Ø11 holes counterbored Ø17.5 × 10.5; before, the holes were Ø17.5 all the way through, which left the M10 heads nothing to bear on. Its yoke screws are tapped M8 blind, the hub screws are countersunk to Ø10.4 for their ISO 10642 heads, the encoder ring screws are tapped M3 from below, and a 0.5 mm relief over the fixed inner ring (Ø112 to Ø222) means only the turning outer ring carries it, as its name always said.

The base flange gets the four M3 holes its board standoffs screw into, which it never had, the housing screws tapped M8, and a 3 mm underside relief inside Ø250 so it bears on the mast adapter at its bolt ring. The yoke base has its windows, clearance holes, H7 dowel holes and the M16 × 1.5 gland port as features. The tilt stop dog is a real split clamp: a 1.5 mm slit over the bore and the M5 clamp screw drilled across it, counterbored on one side and tapped on the other. Its tip had been drawn twisted, with two corners swapped, and is now drawn straight.

Two new hole and pocket options came with this, countersinks and annular reliefs (also usable as face grooves). The pedestal is 0.3 kg lighter, at 97.7 kg with the payload, because these masses now come from the machined volume. Inspect lists every feature with the volume it removes.