Hard-Hat Clipable Safety Notification System (#3) Blind
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**PROJECT FILES ARE ENCRYPTED**
The project files are encrypted using 7-Zip, a free encryption and zipping application. Please message me and I will give you the password to open the project files. Once I share the password with you, please keep it private and do not share it with anyone.
This is a conceptual design project. Awards will be given based on individual feature design ideas, not complete enclosure design although CAD designs will be accepted if that’s the best way you brainstorm. The project submissions won’t necessarily be graded on looks, but functionality. If the design idea is superior, that’s what counts.
Project Objectives:
1) IP 68 fully-waterproof enclosure: (a) PCB uses waterproof USB micro-b connector (b) over molded perimeter gasket.
2) Dust cover for USB micro-b connector: (a) IP6X (only needs to protect from dust/dirt ingression) (b) Reliably stays sealed (c) Not too fragile as to tear/break off.
3) Easy press-fit assembly (matell bosses: Round into Hex Interference fit) (a) 2-6 press fit connectors so that the enclosure can stay sealed, but not too much space is consumed by the connector features. (b) Smallest “Round into Hex Interference fit” connector design possible which is manufacturable.
4) Removable clip feature: (a) accepts clips which clip the enclosure to the underside brim of a hard-hat, and (b) (bonus) accepts a second platform which adheres to the bottom-side of a hard-hat. (c) Clips must be easily exchangeable, durable, and not add too much bulk to the enclosure design. (d) (hint): there aren’t much electronics to the right and left side of the battery allowing for space for these removable clip features.
5) Speaker protective over-Grille: (a) Our previous design just has a hole for the piezo speaker sound output. A waterproof gore vent goes over this hole to allow sound out, but no water in. Design a grill to go over this gore vent hole to protect it from being punctured. (b) This speaker-grille will probably have to be a separately molded piece which snap-fits or glues to the case exterior.
6) Protective over molding for added durability and grip to hard-hat.
7) (optional) Forward-facing window to allow for an integrated flash-light.
8) Contains example electronics: (a) PCB secured internally with clips (press-fit connectors can’t secure the PCB as the PCB would be impinged if the case was crushed) (b) Electronics CAN be slightly re-positioned to accommodate optimal placement of press-fit connectors.
Awards:
1) ($100) Best overall aesthetic design(all must be manufacurable): (a) best conceptual body shape, body texturing, aesthetic details (b) aesthetic LED light bar design (c) aesthetic front button design (d) aesthetic and durable overmolding
2) ($100) Best removable clip design: durable, easily swappable, easily plastic injection molded, and (optionally) adaptable to clipping into stickable mount on underside of hard-hat.
3) ($100) Best USB dust-cover design: simple to manufacture, reliably stays sealed, compact design yet not too fragile it will rip off during normal use.
4) ($100) Best Speaker grill design: (a) Allow for full sound transmission out of the enclosure (b) Allow for gore vent to seal the sound-hole opening for IP-68 water resistance (c) Allow for grill over the sound-hole and gore vent to prevent puncture of the vent.
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I added some images to the "Attachments" section to show an example enclosure and exploded view of the two case halves and the PCB assembly. I hope this clears up any confusion.
John
Buyer
I&;ve added the PCBA cad files in .STEP format as requested by a few participants (G2_PCBA(.STEP))
please provide the password of zip file.
Buyer
How is the project going sofar? Does everyone have a clear understanding of what the project is requesting? Does everyone have all the materials they need to start the project?
Buyer
please provide password .
Hari Prasanth