Build Your Own Arcade Controls Forum
Main => Main Forum => Topic started by: Louis Tully on September 10, 2011, 10:37:59 am
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Well if you are paranoid enough to ask ;-) I'd recommend either a bigger or more stiff box. It's a huge board that could experience some bending forces. If you put the box you packed in a larger box with peanuts you should be fine.
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You really should put the PCB in an ESD bag. Any ol' plastic bag will NOT do. Find one with the ESD symbol on it - the bag should be translucent grey or pink. Here's an example from ULine, (http://www.uline.com/BL_7852/2-Mil-Anti-Static-Reclosable-Bags?keywords=uline%20reclosable%20poly%20bags) though I doubt you're going to want to buy a case. If you can't scrounge an appropriate ESD bag, wrap the board tightly with aluminum foil.
(http://www.shippinglabels.com/img/src/ESD_symbol2.gif)
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That's packed better than some pcbs I've received in the mail. I had one come loose in a flat rate box, even though the box was a little crushed, luckily everything was intact and it still worked.
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I have a two layer PCB shipped the way you are packing that box. It was damaged. The box was bigger, but only a little bigger and twisting forces on the box twisted the PCB. The video was totally shot on it when I got it. Sound worked.
You would have to put a metal backing plate under the PCB for that packing to work so diagonal corner twisting wouldn't be an issue.
Remember, "fragile" means throw harder. :lol
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Better packing than I have seen for any of my boards. Should be great. :applaud: :applaud:
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For a pre-CMOS era game like Asteroids (I don't think there are any CMOS devices on that board, at least), just the pink "anti static" poly bag you're using should be fine. No real need for the full aluminum material shielding bags, but of course it wouldn't hurt. Do not use aluminum foil. That's too conductive and can cause major problems if there's a battery, etc. It's also difficult to get several sheets of foil, which you'd need for a board this size, in good contact, which ruins the shielding effect and may just channel ESD zaps to parts of the board.
That otherwise looks very well packaged. The double box is key: the outerbox takes the abuse and doesn't allow direct transfer to the inner box which prevents torquing the board. The only other real suggestion is to plywood to keep the entire assembly from being bent, but that's probably going overboard. Insure it, of course, but I should hope it would get there in one piece with all that packing. Take lots of pictures as you pack things up in the event you need to make a claim. UPS and FedEx (USPS less so) will always try to claim that there was "inadequate packaging".
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Looks good now to me. I wish I was buying something from you. 8)
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For the PCB I sold on KLOV, I wrapped it in a bunch of foam and tossed some packing peanuts in the corners to make it nice and tight... the packing peanuts got me a proper chewing out from the buyer. :angry:
Glad to hear you sold it, hope you were able to offset the cost of the cab a bit. I've had good luck doing the same.
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For the PCB I sold on KLOV, I wrapped it in a bunch of foam and tossed some packing peanuts in the corners to make it nice and tight... the packing peanuts got me a proper chewing out from the buyer. :angry:
Glad to hear you sold it, hope you were able to offset the cost of the cab a bit. I've had good luck doing the same.
Heh. Why did he chew you out?
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Apparently packing peanuts are like PCB kryptonite because of the possibility of static (but more likely just a collector being anxious- it only bugged me because I always try to pack things very well). He said newspaper would have been better. ???
For the PCB I sold on KLOV, I wrapped it in a bunch of foam and tossed some packing peanuts in the corners to make it nice and tight... the packing peanuts got me a proper chewing out from the buyer. :angry:
Glad to hear you sold it, hope you were able to offset the cost of the cab a bit. I've had good luck doing the same.
Heh. Why did he chew you out?
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Newsprint has a tendency to leave ink residue everywhere. Not a huge deal, but it can be a mess and tends to gather other potentially conductive dirt and debris. Unbleached brown packing paper is actually a really good option. If you don't want to buy it, go down to the grocery store and get a few paper bags to chop up :) I also like the Geami Greenwrap stuff that Digi-Key uses.
Packing peanuts can be static generators, yes, but if you've got the board in a well sealed full shielding bag, it's not a big deal (but avoid them nonetheless). They do make special anti-static packing peanuts; they're usually pink. Anti-static foam sheets are also made and are also usually pink.
Note that old TTL based designs are actually not particularly static sensitive, though there's of course no reason to cause unnecessary exposure. Some CMOS designs are worse than others, but always assume a good zap will do a CMOS design in.
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Asteroids boards *do* have cmos chips on them.....the 4016/4066 is a cmos switch used in the audio sections. To quote Vanguard.....be careful......
All boards should be packed with anti static material if yer not sure just to be safe. Styrofoam is static hell....