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| Kasper:
--- Quote from: e100 on July 13, 2023, 04:00:22 pm --- 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. --- End quote --- Screw cap is easy to design too. Took me about half a day and most of that time was just learning how to make threads and searching for o-rings. |
| PlainName:
--- Quote ---because it does a specific job exceptionally well --- End quote --- Exactly. It only has to be good enough, not perfect. As I said, with screw caps I've had crossed threads, lost the cap, got annoyed by the tether catching on stuff (if there is one - see lost cap), etc. Sure, bungs can be hard to pull out (though Garmin seem to have that one solved) but that's just a shit example. |
| Kasper:
--- Quote from: PlainName on July 13, 2023, 04:13:31 pm --- --- Quote ---because it does a specific job exceptionally well --- End quote --- Exactly. It only has to be good enough, not perfect. As I said, with screw caps I've had crossed threads, lost the cap, got annoyed by the tether catching on stuff (if there is one - see lost cap), etc. Sure, bungs can be hard to pull out (though Garmin seem to have that one solved) but that's just a shit example. --- End quote --- If you use AAA then you dont usually have the cap off for long enough to lose it. How many iterations do you think it took Garmin to solve it? What is the cost and time for each iteration? I like 3D printing prototypes but have not had good results with 3D printed or molded 'rubber' in low cost, low quantity builds. |
| e100:
--- Quote from: Kasper on July 13, 2023, 04:04:43 pm --- --- Quote from: e100 on July 13, 2023, 04:00:22 pm --- 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. --- End quote --- Screw cap is easy to design too. Took me about half a day and most of that time was just learning how to make threads and searching for o-rings. --- End quote --- Depending on the application you might not even need an O ring. If you look at the construction of a modern fizzy drinks bottle you'll see that the seal is plastic on plastic with a simple wedge shape to provide the leverage. I know from experience that these can survive hundreds of cycles and still be airtight. Incidentally your average $0.10 PET plastic disposable fizzy drink bottle is far more durable than the vast majority of $10 SAN plastic 'sports bottles'. Perhaps those are made to fail as well..... |
| PlainName:
--- Quote from: Kasper on July 13, 2023, 04:22:03 pm --- --- Quote from: PlainName on July 13, 2023, 04:13:31 pm --- --- Quote ---because it does a specific job exceptionally well --- End quote --- Exactly. It only has to be good enough, not perfect. As I said, with screw caps I've had crossed threads, lost the cap, got annoyed by the tether catching on stuff (if there is one - see lost cap), etc. Sure, bungs can be hard to pull out (though Garmin seem to have that one solved) but that's just a shit example. --- End quote --- If you use AAA then you dont usually have the cap off for long enough to lose it. --- End quote --- If you have AAA then there's no need for a USB cable so the choice of bung vs cap is irrelevant because a bung is inappropriate (very). --- Quote ---How many iterations do you think it took Garmin to solve it? What is the cost and time for each iteration? --- End quote --- No idea, but I would prefer to buy a product that is designed to be used rather than one that is easy to make. If you're competing with other producers then you need to be better in some way, and being a bit more of a pain to use is not, I would suggest, 'better'. --- Quote ---I like 3D printing prototypes but have not had good results with 3D printed or molded 'rubber' in low cost, low quantity builds. --- End quote --- My attempts at creating a microprocessor on a chip have been... not good. But I don't suggest that microprocessors on a chip are therefore bad, just that I've been crap at making them. If your 'rubber's have not been suitable, that isn't necessarily saying all rubbers are rubbish. [/quote] |
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