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i am developing kits for a project,which i would then sell  smiley-money but i am having trouble with enclosure.i mean,i want to know in what kind of plastic should i cover my pcb,and which kind of plastic is easiest to mould.also,what kind of plastic apple and others use for their devices?please answer!!! smiley
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Is it commercial, then you should use enclosures that meet electrical standards I guess. CHeck the farnells and other companies for boxes.

Must it be watertight?

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it is commercial,and i am developing kind of a usb mouse,so it need not be watertight,but even if it is,then no problem smiley-lol
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Your question is way to generic. What exactly are you doing?

In general the only thing that I can say is that the enclosure is usually a non trivial part and also expensive part of the development cycle. So if you have "everything" but the enclosure consider your project ~20% done. Why only 20%? Because if you have not yet solved the enclosure part you are not even aware of what still lays ahead smiley-wink IMHO it is a very good idea to always consider the enclosure before even starting to design the electronics part.
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So if you have "everything" but the enclosure consider your project ~20% done. Why only 20%? Because if you have not yet solved the enclosure part you are not even aware of what still lays ahead
would you please clarify?i really don't know about prototyping,and this is my first time developing anything commercial(kind of commercial).is there some guide or something for it?
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No there is not. This is why I said that you are only 20% done. But go ahead it is a great learning experience. You will figure out soon what I am talking about smiley-wink
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ok but just give me a hint.....please smiley-cry smiley-eek
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Hint: developing the electronics and the software is only part of the equation. The seemingly "trivial" parts are way more work than you would expect. For example:

- Getting the enclosure right
- Getting it manufactured
- Getting the packaging right
- Getting the manual right
- Getting the sales channel up and running
- Getting marketing sorted out
- Getting proper and cost efficient support into place
- Getting profit out of it
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OK.i have pretty much more to do.i am really freaked out.what should i do?
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Gather experience while you proceed - what else smiley-wink
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 smiley-cry smiley-cry smiley-cry smiley-cry smiley-cry smiley-cry
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smiley-cry smiley-cry smiley-cry smiley-cry smiley-cry smiley-cry

Its not as bad as all that. First, DO NOT let a few road blocks crush your spirit! Buck up! You're going to hit this block, and many more, but they are not really road blocks, just bumps and pot holes. You can get past them.

Finding an enclosure can be a difficult problem. I encourage people to find something readily available that is close to what they need and then design to fit it. If your volume is low, this is the way to go. There are companies that make generic enclosures. Start with:

http://www.polycase.com

If you can't find something you can use, maybe because it needs a funny shape or something, you have to make a custom case. This can be pricy. Sometimes you need to use "injection molding" which means you need a mold made. That can be expensive, but then each case is very inexpensive. If you go with "no mold" technology, then people will essentially machine and glue plastic to make a case. There is still an upfront cost, but it is lower, but each case is then more expensive. Google "no mold case" and you'll find many companies that do this.

Hang in there and good luck!




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smiley-cry smiley-cry smiley-cry smiley-cry smiley-cry smiley-cry

 One thing that may help you. If you know that your board needs X by Y by Z dimensions you can begin with looking for a box around that size. It is easier to find the box you want to use and adjust your board size, connector locations, etc. to fit the box. If you make a complete board first, you will have a harder time matching the box to fit.
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