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2011-12-03 by Steve Greenfield
From Advanced Circuits: 7 Common Mistakes With Gerber Files http://www.my4pcb.com/easy_design_order_printed_circuit_boards_common_mistakes.htm 10 Most Common Mistakes in Flex Designhttp://www.my4pcb.com/advanced_circuits_common_flex_design_mistakes.htm Tips and tools http://www.4pcb.com/index.php?load=content&page_id=296 Steve Greenfield AE7HD http://www.linkedin.com/in/stevenjgreenfield
2011-12-04 by John Dammeyer
Has anyone done any metal cored PC boards at home? Or even know the process for fabricating them? John Dammeyer [Non-text portions of this message have been removed]
2011-12-28 by marc
HI John is same as for multilayer board it use very thin FR-4 PCB (single or 2 side) then it hot laminate it to aluminium plate whit a Prepreg bethen pcb and the metal core but for laminate it you need a hydraulic press capable of heating to 230-250 deg Celsus so above glass transition point of FR-4 Prepreg sheet was aviable from lpkf or local pcb shop it look like paper thin fibre glass fabric whit resin on it as for press i personally use 2 1/2" thick aluminium plate on on a metal frame 1" thick bolted together the 4 corner and put it on kitchen over for 60 minute then let it cold down for another 60 minute for multilayer it same but you replace metal core whit 2 or more 2 layer PCB each one separated by a Prepreg sheet then drill and plate via Best regard Marc Lalonde --- In Homebrew_PCBs@yahoogroups.com, "John Dammeyer" <johnd@...> wrote:
> > > > Has anyone done any metal cored PC boards at home? Or even know the > process for fabricating them? > > John Dammeyer > > > > > > [Non-text portions of this message have been removed] >
2011-12-28 by John Dammeyer
Thanks for the feedback. I take it that the thin FR4 is etched with the layout first before pressing. Otherwise the etchant would damage the core? John Automation Artisans Inc. http://www.autoartisans.com/ELS/ Ph. 1 250 544 4950
-----Original Message----- From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of marc Sent: Wednesday, December 28, 2011 5:35 AM To: Homebrew_PCBs@yahoogroups.com Subject: [Homebrew_PCBs] Re: Metal Core PC boards HI John is same as for multilayer board it use very thin FR-4 PCB (single or 2 side) then it hot laminate it to aluminium plate whit a Prepreg bethen pcb and the metal core but for laminate it you need a hydraulic press capable of heating to 230-250 deg Celsus so above glass transition point of FR-4 Prepreg sheet was aviable from lpkf or local pcb shop it look like paper thin fibre glass fabric whit resin on it as for press i personally use 2 1/2" thick aluminium plate on on a metal frame 1" thick bolted together the 4 corner and put it on kitchen over for 60 minute then let it cold down for another 60 minute for multilayer it same but you replace metal core whit 2 or more 2 layer PCB each one separated by a Prepreg sheet then drill and plate via Best regard Marc Lalonde --- In Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com> , "John Dammeyer" <johnd@...> wrote: > > > > Has anyone done any metal cored PC boards at home? Or even know the > process for fabricating them? > > John Dammeyer > > > > > > [Non-text portions of this message have been removed] > [Non-text portions of this message have been removed]
2011-12-30 by marc
Hi yes PCB was etched and via made before lamination then after lamination solder mask and silk was made it not good idea to put aluminium on etch thank ;-) Best regard Marc Lalonde --- In Homebrew_PCBs@yahoogroups.com, "John Dammeyer" <johnd@...> wrote:
> > Thanks for the feedback. I take it that the thin FR4 is etched with the > layout first before pressing. Otherwise the etchant would damage the core? > > John > > > > Automation Artisans Inc. > http://www.autoartisans.com/ELS/ > Ph. 1 250 544 4950 > > > -----Original Message----- > From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] > On Behalf Of marc > Sent: Wednesday, December 28, 2011 5:35 AM > To: Homebrew_PCBs@yahoogroups.com > Subject: [Homebrew_PCBs] Re: Metal Core PC boards > > > > > HI John > > is same as for multilayer board > > it use very thin FR-4 PCB (single or 2 side) > then it hot laminate it to aluminium plate whit a Prepreg > bethen pcb and the metal core > > but for laminate it you need a hydraulic press capable of heating > to 230-250 deg Celsus so above glass transition point of FR-4 > > Prepreg sheet was aviable from lpkf or local pcb shop > it look like paper thin fibre glass fabric whit resin on it > > as for press i personally use 2 1/2" thick aluminium plate > on on a metal frame 1" thick bolted together the 4 corner > and put it on kitchen over > for 60 minute then let it cold down for another 60 minute > > for multilayer it same but you replace metal core whit 2 or more 2 layer > PCB each one separated by a Prepreg sheet > > then drill and plate via > > Best regard > Marc Lalonde > > --- In Homebrew_PCBs@yahoogroups.com > <mailto:Homebrew_PCBs%40yahoogroups.com> , "John Dammeyer" <johnd@> > wrote: > > > > > > > > Has anyone done any metal cored PC boards at home? Or even know the > > process for fabricating them? > > > > John Dammeyer > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > [Non-text portions of this message have been removed] >