Table 1.

A table of rig components and commercial sources

Part number	Component	Item description	Number	Usage notes	Part ID	Supplier
P1	Base + head restraint	6″ × 6″ breadboard	1	Platform for all components	MB6	Thorlabs
P2		3″ × 1/2″ posts	2	Supports head plates	TR3	Thorlabs
P3		Adhesive Teflon sheet, (PTFE) 12″ × 12″	1	Covers the base, makes for easier cleanup	3M	3M
P4		Thread adapter, internal 4-40, external 1/4″-20	2	Mounting Arduino to the base	AE4E25E	Thorlabs
P5		1/4″-20 set screw, length 0.5″	1	Slotting treadmill front	91375A537	McMaster-Carr
P6		1/4″-20 cap screw, length 0.5-1″	3	Slotting treadmill, rear, fastening air/water holder to the base	92220A183	McMaster-Carr
P7		Button-head screw	1	Hold the Arduino case to the base	92949A110	McMaster-Carr
P8		4-40 cap screw, 1″ length	1	Hold Arduino to the case and base	91251A110	McMaster-Carr
P9		Head bars	2	Fastens head plate to head posts	headbar.stl	Printer
P10		Arduino Mega 2560	1	Control components and log behavior data	1,050-1,018-ND	DigiKey
P11	Air/water control	Flowmeter, 50 mm; 0.5 LPM Air	1	Regulates airflow to odorants	2968K201	McMaster-Carr
P12		M5 screw	1	Secures flow meter to holder	92290A277	McMaster-Carr
P13		Luer three-way stopcock, F/F/M	2	Air and water intake	PVAP-MFF-PC	ISM
P14		Luer three-way T-splitter, F/F/M	5	Coupled to water and odorant bottles	CFFT-WN	ISM
P15		Luer 3/32″ barbed connector, F	1	Connects water bottle to water intake stopcock	CFLLA-332-N	ISM
P16		Luer 3/32″ barbed connector, M	2	(1) Air intake to flowmeter; (2) water intake to solenoids	CIML-332EA-WN	ISM
P17		Luer elbow adaptor, M-F	3	(1) Water bottle to intake; (2–3) lickspout needles	CFLET-WN	ISM
P18		Luer snap-on threads	8	Secure male Luer adapters to female Luer adapters	CLFSR-WN	ISM
P19		1/8 NPT fitting (3/32″ barb)	2	Connecting 1/16″ PTFE tubing to flowmeter	F325483	ISM
P20		PTFE (Teflon) tubing, 1/16″ OD, 1/32″ ID	35'	Air and water lines	PTFE-132116-100	ISM
P21		Luer 3/32″ barbed check valve, intake	4	Air intake to the odorant tube	BCV-67220-ML	ISM
P22		Luer 3/32″ barbed check valve, exhaust	4	Air exhaust from the odorant tube	BCV-67FL-220	ISM
P23		6-40 threaded ferrules	24	Coupling to for 1/16″ OD tubing	SKU 640FF-16	Global FIA
P24		1/4 oz Luer-capped dispensing bottles	4	Contains odorants	JG0.25BC	Jensen Global
P25		2 oz Luer-capped dispensing bottle	1	Contains water	JG2.0BC Bl2	Jensen Global
P26		Silicon tubing, 1/32″ I.D., 5/32″ O.D.	10″	Coupling 1/16″ PTFE tubing to barbs	57286	US Plastics
P27		Silicon tubing, 1/16″ I.D., 1/8″ O.D.	10″	Coupling 1/16″ PTFE tubing to male Luer connectors at odorant bottles	57287	US Plastics
P28		Air/water holder	1	Holds flowmeter, water bottle, odorant bottles, and Luer connectors	airWaterHolder.stl	Printer
P29		Odorant manifold	1	Merges odorant exhaust channels	threadedManifold.emsx	CNC mill
P30	Lick stage	Gavage needle, 20 g	2		AFN2025S	GavageNeedle
P31		Translating post	1	Hold lick ports	BTP2.0	Newport
P32		XY translating stage	1	Hold lick ports	M-MT-XY	Newport
P33		6-40 nuts	2	Hold odorant tube	94812A663	McMaster-Carr
P34		6-40 threaded ferrules	18	Coupling to for 1/16″ OD tubing	SKU 640FF-16	Global FIA
P35		Plastic 8/32″ thumb screw	1	Securing lickspouts to holder	94320A393	McMaster-Carr
P36		2–56″ × 5/8″ screw	1	Securing translating post to holder	91802A083	McMaster-Carr
P37		2–56 nut	1	Securing translating post to holder	90480A003	McMaster-Carr
P38		Lickspout holder	1	Securing lickspouts to the XY stage and base	lickSpoutPostHolder.stl	Printer
P39		8–32 cap screw, 1/4″ length	3	(1) Lickspout holder to the XY stage, (2) head bars to posts	90128A191	McMaster-Carr
P40	Treadmill	Toy tank treads	76 links	Supports mouse, conducts lick detection current	TT35056	Warp United
P41		Steel bearings	4	Treadmill axle bearings	7804K143	McMaster-Carr
P42		2″ mini posts	2	Treadmill axles	MS2R	Thorlabs
P43		4–40 screws and washers	1 kit	Securing bearings to treadmill frame	ALAST0440	Fastener Express
P44		Rotary encoder	1	Measure running speed	AMT103-V	DigiKey
P45		1/4-20 cap screws, 1/2″	4	Secure treadmill to breadboard	92220A183	McMaster-Carr
P46		3 mm banana plug	1	3.3 V lick detection voltage connector	generic	Amazon
P47		Mouse platform	1	Supports mouse/treadmill	treadmillBase.stl	Printer
P48		Treadmill sprockets (aluminum)	2	Holds treads	treadmillSprockets.stl	Printer
P49	Command stage	Two-way solenoid valves, 12 V, face-mounted	2	Solenoid valves for dispensing water reward	LHDB1252115H	The Lee Company
P50		Three-way solenoid valves, 12 V, face-mounted	4	Route air to one of the four odorant tubes or bypass	LHDA1221411H	The Lee Company
P51		Air/water face-mount manifold (aluminum)	1	Mount solenoids to tubing	threadedFaceMount.emsx	CNC mill (e.g., Hubs)
P53		2–56 solenoid retention screws, 0.5″ length	8	Fasten solenoids to face mount	91251A081	McMaster-Carr
P54		DF Robot DF Player Pro	1	Play auditory and whisker somatosensory stimuli	1738-DFR0768-ND	DigiKey
P55		H-bridge	2	Gate 12 V power to solenoids and actuators	296-9911-5-ND	DigiKey
P56		six-pin screw terminal, 2.54 mm pitch	2	Connecting wires to PCB board	A98337-ND	DigiKey
P57		two-pin screw terminal, 2.54 mm pitch	1	Connecting linear actuator to PCB board	A98333-ND	DigiKey
P58		Eight-pin male header	6	Connecting PCB board to Arduino	732-5321-ND	DigiKey
P59		two-pin female header	6	Connecting solenoids to board	2057-RS1-02-G-ND	DigiKey
P60		six-pin female header	2	Connecting sound board to main board	2057-RS1-06-G-ND	DigiKey
P61		2 × 18 pin stackable female header	1	Connecting PCB board to Arduino	SSW-118-03-G-D-ND	DigiKey
P62		1 MΩ resistors	11	Dropping current (pull-down)	CF14JT1M00TR-ND	DigiKey
P63		Ribbon cable	1'	Connection from PCB board to components	3M157841-1-ND	DigiKey
P64		PCB board	1	Connects Arduino to peripheral components	FlexRigShield.fzz	Printer
P65	Vibration stage	Speakers (Tymphany, 20 Hz–20 kHz)	2	Auditory and whisker stimuli	HPD-50N25PR00-32-ND	DigiKey
P66		Locking Ball and Socket Mount	2	Mounting speakers to platform	TRB1	Thorlabs
P67		Lens Mount with Retaining Ring for Ø2″ Optics	2	Mounting speakers to platform	LMR2	Thorlabs
P68		Adapter 8–32 Threads and 1/4-20 Threads	2	Mounting speakers to platform	AP8E25E	Thorlabs
P69		Two-pin screw terminal, 2.54 mm pitch	2	Connecting linear actuator to PCB board	PRT-10571	Sparkfun.com
P70		Speaker funnels	2	Condensing sound wave, directing toward whiskers	speakerfunnel.stl	Printer

The left column (Part number) corresponds with blue labels in Figures 3⇓⇓–6, assembly instructions. Online product links and recent prices (accurate as of manuscript submission date) are available in spreadsheet format at the FlexRig Github page (spellmanlab/FlexRig).