# Iterations 9-10
## 9: gantry_wrist_bracket.stl (56x48x32mm, watertight) — adapter from Y-carriage (M4 @36x28) to STS3215
   holder (M3 @32x18) with output-shaft clearance. The last TODO printed part from the BOM.
## 10: wired carriage_plate.stl (x3) + gantry_wrist_bracket.stl into gantry_arm_motorized.urdf (HTTP 200) so
   it shows the real printed parts instead of placeholder carriage boxes.
## Next
Endstop/limit-switch reps at the 3 axis homes; simple controller wiring note; then mobile differential-drive detail.