Number	Purpose
Head-Fixation device
Base supports	2×	Supports the entire head load cell array
Curved base connectors	2×	Supports the load cell array above the animals’ head
Keystone beam	1×	Connects the left and right supports as well as attaches the Left/Right load cell
Top load cell connector	1×	Connects the Left/Right load cell to the Forward/Backward load cell
Bottom load cell connector	1×	Connects the Forward/Backward load- cell to the Up/Down load cell
Main load cell connector	1×	Connects the Up/Down load cell to the part of the head-fixation device that clamps the animal in
Perch main body	1×	Supports the animal and the perch which houses the foot loadcells
Perch feet platforms	2×	Provides a platform between the animal’s feet and the feet load cells
Perch curved cover	1×	Provides a covered housing for the animal
Load Cell Calibration Device
Part A	2×	Provides support and facilitates bidirectional calibration
Part B	1×	Joins the twin A Parts and attaches the load cell for calibration
Weighing platform	1×	Attaches to the free end of the load cell and supports calibration weights