Aren't some egg cartons ESD generators???
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Aren't some egg cartons ESD generators???
 
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Greetings:
Are not most egg cartons these days made of polystyrene or something similiar? If so, doesn't that material cause ESD?? Seems to me it does. I have avoided the use of that type, thinking that the answers to both questions is yes. Can anyone confirm this? I am certainly no expert on ESD. It also seems to me that even if even if you only store hardware items in them, simply touching the carton or sliding your fingers across that material could generate ESD. Am I overconcerned? I really like using egg cartons for part sorting, but I use the ones made from what looks like a molded grey paper material, which I think is less likely to cause ESD. And to keep them from flipping over, I glue them to a piece of 1/4" plywood, which has a footprint a little larger than the egg carton. You can also write the hardware description on the plywood underneath each cell. I used the molded paper ones when building the K2, the K3, and several other kits with no discernable ESD problem so far. Another question for the experts on this subject: Are the semi ridgid plastic partitioned trays you find in places which sell fishing stuff safe? I have used them, and experienced no problems to my knowledge. 73, George, n4ym _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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I didn't put any of the boards in cartons - left them in the bags
until needed. Everything else was bonded to earth (via correct leads with 1M ohn resistors), so that is mat, me via wrist strap and the motherboard and then chassis. I also used cardboard cartons 73 de M0XDF, K3 #174 -- I believe I found the missing link between animal and civilized man. It is us. -Konrad Lorenz, ethologist, Nobel laureate (1903-1989) On 28 Aug 2008, at 13:47, George wrote: > Greetings: > > Are not most egg cartons these days made of polystyrene or something > similiar? If so, doesn't that material cause ESD?? Seems to me it > does. > I have avoided the use of that type, thinking that the answers to > both questions is yes. Can anyone confirm this? I am certainly no > expert on ESD. > > It also seems to me that even if even if you only store hardware > items in them, simply touching the carton or sliding your fingers > across that material could generate ESD. Am I overconcerned? > > I really like using egg cartons for part sorting, but I use the ones > made from what looks like a molded grey paper material, which I > think is less likely to cause ESD. And to keep them from flipping > over, I glue them to a piece of 1/4" plywood, which has a footprint > a little larger than the egg carton. You can also write the > hardware description on the plywood underneath each cell. I used > the molded paper ones when building the K2, the K3, and several > other kits with no discernable ESD problem so far. > > Another question for the experts on this subject: Are the semi > ridgid plastic partitioned trays you find in places which sell > fishing stuff safe? I have used them, and experienced no problems > to my knowledge. _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by George-122
George wrote:
> Are not most egg cartons these days made of polystyrene or something > similiar? If so, doesn't that material cause ESD?? Seems to me it > does. I have avoided the use of that type, thinking that the answers > to both questions is yes. I would think that the foam ones are dangerous. There is a 'crackly' feel to them sometimes! I pick up metal muffin tins at yard sales, usually for $0.25 or so. Then I connect them to ground through a 1 megohm resistor. I also have a metal yard(meter)-stick attached to the front of my workbench which is similarly grounded, a wrist strap and an anti-static mat. All of these items are connected to a common ground, through resistors. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Re: Aren't some egg cartons ESD generators???
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I never did like the egg cartons because too difficult to remove parts at times. I leave the parts in the bage or put parts in plastic boxes with the divisions.
Paul, KD3JF --- On Thu, 8/28/08, Vic K2VCO <[hidden email]> wrote: From: Vic K2VCO <[hidden email]> Subject: Re: [Elecraft] Aren't some egg cartons ESD generators??? To: "George" <[hidden email]> Cc: [hidden email] Date: Thursday, August 28, 2008, 11:30 AM George wrote: > Are not most egg cartons these days made of polystyrene or something > similiar? If so, doesn't that material cause ESD?? Seems to me it > does. I have avoided the use of that type, thinking that the answers > to both questions is yes. I would think that the foam ones are dangerous. There is a 'crackly' feel to them sometimes! I pick up metal muffin tins at yard sales, usually for $0.25 or so. Then I connect them to ground through a 1 megohm resistor. I also have a metal yard(meter)-stick attached to the front of my workbench which is similarly grounded, a wrist strap and an anti-static mat. All of these items are connected to a common ground, through resistors. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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