# Release 3 Bill of Materials {% file src="/files/-Ln1ByUUOtvUackbUs70" %} {% file src="/files/-Ln1C1JEfH-qq1wfvcRz" %} ## ## BOM | Part number | Quantity | Description | Source | | ----------- | -------- | ---------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- | | #110-001 | 1 | OPTICS BRACKET MAIN BODY | 3DPRINT | | #110-002 | 2 | SLIDE ENDCAP | 3DPRINT | | #111-001 | 0 | LEFT DISPLAY TRAY - 75cm FOCAL | 3DPRINT | | #112-001 | 0 | RIGHT DISPLAY TRAY - 75cm FOCAL | 3DPRINT | | #111-002 | 1 | LEFT DISPLAY TRAY - 25cm FOCAL | 3DPRINT | | #112-002 | 1 | RIGHT DISPLAY TRAY - 25cm FOCAL | 3DPRINT | | #113-001 | 1 | LEFT ROTATION ADJUSTMENT SLIDE MOUNT | 3DPRINT | | #114-001 | 1 | RIGHT ROTATION ADJUSTMENT SLIDE MOUNT | 3DPRINT | | #115-001 | 1 | FOREHEAD REST BASE SHAPE | 3DPRINT | | #120-001 | 1 | HALO MAIN BODY | 3DPRINT | | #120-002 | 1 | HALO LID | 3DPRINT | | #121-001 | 1 | HALO ELECTRONICS HOLDER | 3DPRINT | | #121-002 | 1 | HALO ELECTRONICS DP PORT HOLDER | 3DPRINT | | #130-001 | 0 | SIMPLIFIED OPTICS MAIN BODY | 3DPRINT | | #131-001 | 0 | SIMPLIFIED DRIVER BOARD MOUNT | 3DPRINT | | #131-002 | 0 | SIMPLIFIED DP PORT HOLDER | 3DPRINT | | #210-001 | 1 | FOREHEAD MAIN STRUCTURE | 3DPRINT | | #210-002 | 1 | FOREHEAD HEADGEAR SPAN | 3DPRINT | | #210-003 | 2 | FOREHEAD HINGE CAP | 3DPRINT | | #210-004 | 2 | FOREHEAD HINGE BASE | 3DPRINT | | #220-001 | 2 | REAR HINGE BASE | 3DPRINT | | #220-002 | 2 | REAR HINGE CAP | 3DPRINT | | #230-001 | 1 | LEFT SIDE MAIN SPAN WITH SLIDE BRAKE | 3DPRINT | | #230-002 | 1 | LEFT BRAKE HOUSING | 3DPRINT | | #230-003 | 1 | LEFT BRAKE BUTTON | 3DPRINT | | #230-004 | 1 | LEFT CABLE GUIDE | 3DPRINT | | #240-001 | 1 | RIGHT SIDE MAIN SPAN WITH SLIDE BRAKE | 3DPRINT | | #240-002 | 1 | RIGHT BRAKE HOUSING | 3DPRINT | | #240-003 | 1 | RIGHT BRAKE BUTTON | 3DPRINT | | #240-004 | 1 | RIGHT CABLE GUIDE | 3DPRINT | | #500-001 | 1 | REFLECTORS | [CombineReality](https://www.smart-prototyping.com/AR-VR-MR-XR/AR-VR-Module/Project-North-Star-Lenses-Single-Piece-Set-v3_1-SPC) | | #630-001 | 1 | 0.304-in OD TORSION SPRING 180 DEG. L-HAND WOUND | [McMaster #9271K603](https://www.mcmaster.com/9271k6) | | #630-002 | 1 | 0.304-in OD TORSION SPRING 180 DEG. R-HAND WOUND | [McMaster #9271K668](https://www.mcmaster.com/9271k668) | | #640-001 | 28 | M2.5x0.45 6mm LONG STEEL FLAT HEAT SCREW 90 DEG CS | [McMaster #91420a016](https://www.mcmaster.com/91420a016) | | #640-002 | 2 | M4x0.7 20mm STEEL BUTTON HEAD SOCKET SCREW | [McMaster #91239a152](https://www.mcmaster.com/91239a152) | | #650-001 | 36 | M2x8mm LONG THREAD-FORMING SCREWS FOR PLASTIC | [McMaster #96817a212](https://www.mcmaster.com/96817a212) | | #660-001 | 2 | M4x0.7mm ZINC PLATED NYLON INSERT HEX LOCK NUT | [Amazon](https://www.amazon.com/gp/product/B015A3CV5S/ref=oh_aui_detailpage_o00_s00?ie=UTF8\&psc=1) | | #670-001 | 2 | 5/16 ID x 3/4 OD x 1/16in NEOPRENE WASHER | [Amazon](https://www.amazon.com/s?k=5%2F16+ID+x+3%2F4+OD+x+1%2F16in+NEOPRENE+WASHER\&i=industrial\&ref=nb_sb_noss) | | #690-001 | 21 | M2.5x0.45 3.4mm LONG HEAT-SET INSERT FOR PLASTICS | [McMaster #94180a321](https://www.mcmaster.com/94180a321) | | #700-002 | 2 | BOE 3.5-in VS035ZSM-NW0 120HZ LTPS 1440\*1600 Module | [Polaris AR](https://www.smart-prototyping.com/Display-for-Project-North-Star-3_5inch-1440x1600-pixels) | | #800-001 | 1 | DISPLAY DRIVER BOARD | [Polaris AR](https://www.smart-prototyping.com/Project-North-Star-Display-Driver-Board) | | #900-001 | 1 | MILLER WELDING GEN. III HEADGEAR | [CyberWeld](https://store.cyberweld.com/miwehegeiiir.html) | | #900-002 | 1 | 2mm THICK SELF-STICK ANTI-SKID RUBBER | [Amazon](https://www.amazon.com/gp/product/B01K7JFXAA) | | #900-003 | 1 | FOAM FOREHEAD PADDING | [Joann](https://www.joann.com/airtex-0.5-16-oz.-high-density-foam/2180313.html#start=1) | | #900-004 | 1 | FOAM BACKED FABRIC | [Joann](https://www.joann.com/headliner-utility-fabric-55-black/3496072.html) | | #900-005 | 1 | 3x10x165mm 6061 AL. BAR SLIDE | [McMaster #9146t21](https://www.mcmaster.com/9146t21) | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.projectnorthstar.org/project-north-star/mechanical/release-3/headset-bom.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.