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Single person full product design

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jonpaul:
Since 1970s designed and made many products, some one off, some were in production.

Used hand drawn schematics, NO simulations, CAD only for mechanincal and a SW pgm for magnetics.

So it can be done but years of experience to get a viable and economic result,

Jon

Kasper:
Yes one person can do this.  When I design PCB and mech it is more efficient, easier to minimize the size and more enjoyable compared to just designing electronics and working with a mech designer.

Anthocyanina:
I don't know why she unlisted some of her videos, her best ones in my opinion, but fortunately i had the link to this one when i shared it to someone. She designed everything for this phone, from the electronics, to some of the software, to all the mechanical parts, including the rotary dial and case, not sure about the bell. This is i think the best example of one person alone designing a complete product:

PlainName:

--- Quote from: e100 on July 11, 2023, 03:30:04 pm ---For example, the normal way to cover an unused electrical port on a normal bit of outdoor electrical gear is to have a screw cap and O ring seal that looks something like this
https://www.newark.com/productimages/standard/en_US/5064788.jpg

Rechargeable bike lights don't use this obvious solution. Instead they use this


--- End quote ---


A silicone rubber bung and weak lanyard that is engineered to fail after 18 months. Once the bung is lost water gets in and the light fails within a few days.

--- End quote ---

Not sure that's a good example. For a consumer product the 'obvious' industrial solution of a screw cap can be just a pain in the arse to use, and many users would prefer the ability to quickly pop off the rubber and slip the USB plug in, all taken a mere moment. Particularly if they're going to do it often. Added to that, there's no loose cap swinging on the end of a tether which will get in the way, and... oh, just many reasons the bung is better in practice even though it's worse in function.

I think the automatic assumption that things are designed to fail is not usually the right one. A good design is a trade-off of many competing and incompatible requirements, and focusing on the single 'must last forever and never wear out' is perhaps a bit too narrow.

e100:

--- Quote from: PlainName on July 13, 2023, 11:40:03 am ---Not sure that's a good example. For a consumer product the 'obvious' industrial solution of a screw cap can be just a pain in the arse to use, and many users would prefer the ability to quickly pop off the rubber and slip the USB plug in, all taken a mere moment. Particularly if they're going to do it often. Added to that, there's no loose cap swinging on the end of a tether which will get in the way, and... oh, just many reasons the bung is better in practice even though it's worse in function.

--- End quote ---

The screw cap is not an 'industrial' solution, it is literally everywhere in common use because it does a specific job exceptionally well and it's use can be mastered by young and old.

The rubber bung style used on bike lights is actually more inconvenient because it requires you to use your finger nail to lever it off. Something you can grab with two fingers is far easier to use.

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