Ok guys, time to drop everything and get to the bottom of the aluminininium question. No, not the spelling aspect but the material one. Little would please me more than to be wrong on this. Gimme a half hour and we'll know for sure.
Rufus- I believe there's an element of fact in what you're saying due to the thinness and 'flexibilty' of the primary PCB.especially with the added weight of 2nd story PCB's stacked on top. And when heated they're even more flexible. If it were to flex while powered on beyond a certain amount it could put any of many charged electrical solder points and/or other exposed conductive contact areas in direct contact with the ground-to-earth chassis... and instant component failure would result summarily, on-the-spot. In fact this is an area I plan to cover later in the week using small plastic spacers adhered to the PCB back-side in an effort to offset the potential for a dead-short situation while minimizing the insulative and heat-retentive effect of resilient foams.
Back in a flash with aluminum or brass. Place yer bets!
Rufus- I believe there's an element of fact in what you're saying due to the thinness and 'flexibilty' of the primary PCB.especially with the added weight of 2nd story PCB's stacked on top. And when heated they're even more flexible. If it were to flex while powered on beyond a certain amount it could put any of many charged electrical solder points and/or other exposed conductive contact areas in direct contact with the ground-to-earth chassis... and instant component failure would result summarily, on-the-spot. In fact this is an area I plan to cover later in the week using small plastic spacers adhered to the PCB back-side in an effort to offset the potential for a dead-short situation while minimizing the insulative and heat-retentive effect of resilient foams.
Back in a flash with aluminum or brass. Place yer bets!
Statements in my posts are opinion only, not to be construed as fact. Any projects I engage in are at my own risk! Their outcome cannot be assured and may result in success, small/no change or catastrophic failure. I encourage no one rely on anything I say or do as gospel and to realize your mileage may vary!
