Bill of Materials

The Lockbox uses a custom printed PCB with additional off-board components including a display, battery, motor, encoder, buttons, and magnets.

Parts

This parts list is generated from hardware/bom.csv during the assembly-docs build — do not edit the table below by hand. Update the CSV instead. Parts are referenced throughout the Assembly Guide.

Lockbox-OSS/hardware/bom.csv · 679750e

#	Part Name	Category	Description	Qty	UOM	Manufacturer	MFG PN	Vendor	Vendor PN	Source	Notes
1	Top housing	FDM	FDM-printed top enclosure housing	1	each	–	–	–	–	cad/top-housing.step	–
2	Bottom housing	FDM	FDM-printed bottom enclosure housing	1	each	–	–	–	–	cad/bottom-housing.step	–
3	PCB cover	FDM	FDM-printed PCB cover	1	each	–	–	–	–	cad/pcb-cover.step	Secures over the populated PCB.
4	Back button	FDM	FDM-printed back/arrow button cap	1	each	–	–	–	–	cad/back-button.step	–
5	Enter button	FDM	FDM-printed lock/enter button cap	1	each	–	–	–	–	cad/enter-button.step	–
6	Locking latch	FDM	FDM-printed locking latch	1	each	–	–	–	–	cad/locking-latch.step	Installs onto motor shaft.
7	Encoder wheel	FDM	FDM-printed rotary encoder wheel	1	each	–	–	–	–	cad/encoder-wheel.step	Installs onto rotary encoder shaft.
8	Motor clamp	FDM	FDM-printed motor clamp	1	each	–	–	–	–	cad/motor-clamp.step	–
9	Lockbox PCBA	PCA	Populated Lockbox PCB assembly	1	each	JLCPCB	–	JLCPCB	–	pcb/production/v1.4/bom_v1.4.csv	Top-level PCB assembly line item; populated component EBOM is tracked in git at source path.
10	PCB button switch	SWI	Tactile switch for PCB buttons	2	each	Same Sky	TS02-66-100-BK-260-SCR-D	Mouser	179-TS0266100BK260SC	pcb/production/v1.4/bom_v1.4.csv	Vendor link: https://www.mouser.ca/ProductDetail/179-TS0266100BK260SC
11	Rotary encoder	SWI	Rotary encoder	1	each	Bourns	PEC12R-2120F-N0012	Mouser	652-PEC12R-2120F-N12	cad/encoder.step	Vendor link: https://www.mouser.ca/ProductDetail/652-PEC12R-2120F-N12
12	4 mm magnet	FBO	N52 neodymium magnet, 4 mm x 5 mm	4	each	Generic Factory	–	TBD	–	–	One in locking-latch, one in top-housing, and two in bottom-housing. Source costing sheet marks supplier as LOOKING FOR NEW SUPPLIER.
13	Rubber foot	FBO	Polyurethane bumper foot, 0.312 in diameter, clear	4	each	3M	SJ5302	Digi-Key	SJ5302-7-ND	https://www.digikey.ca/en/products/detail/3m/SJ5302/2345107	Glued onto backplate.
14	Motor	MTR	DC micro gear motor, 12 V, 60 RPM	1	each	Generic Factory	–	AliExpress	33022320164	cad/motor.step	Drives locking latch. Vendor link: https://www.aliexpress.com/item/33022320164.html
15	Motor wire	CHA	Motor wire harness, 1 mm pitch female connector, 2P, 100 mm, single head	1	each	Generic Factory	–	AliExpress	1005007218127653	https://www.aliexpress.com/item/1005007218127653.html	Connects motor to PCB.
16	Battery	BTY	3.7 V 500 mAh lithium polymer battery with custom 2-pin JST and 5 cm black/red cable	1	each	Generic Factory	–	AliExpress	1005009279419327	cad/battery.step	Installed into top-housing. Vendor link: https://www.aliexpress.com/item/1005009279419327.html
17	Screen	ASM	PS 2.0 inch 14-pin SPI TFT LCD module	1	each	Generic Factory	–	AliExpress	1005005865407299	cad/screen.step	Installed into top-housing. Vendor link: https://www.aliexpress.com/item/1005005865407299.html
18	Torx screw	FST	#4-20 x 1/2 in 6-lobe flat Plastite alternative 48-2 screw, black oxide	7	each	Shorpioen	0408LTFB	Shorpioen	BC-0408LTFB	https://shorpioen.com/4-20x1-2-6-lobe-flat-plastite-alternative-48-2-fully-threaded-black-oxide-and-wax-box-qty-10000-bc-0408ltfb/	2x for motor-clamp, 5x for pcb-cover; installed with T7 Torx driver.
19	USB-C cable	CBL	USB-A to USB-C cable, 4 ft braided	1	each	Generic Factory	–	Amazon	B0CRYMGXMX	https://www.amazon.ca/dp/B0CRYMGXMX	–
20	Resealable bag	PKG	6 x 8 in resealable bag	1	each	Uline	S-5065	Uline	S-5065	https://www.uline.ca/Product/Detail/S-5065/Resealable-Bags/6-x-8-15-Mil-Resealable-Bags	–

Assembly tools and shop supplies