Homebrew PCBs

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Thank you,
Steve Greenfield
your grumpy neighborhood moderator

--- In Homebrew_PCBs@yahoogroups.com, "Brian Turvey" <g3umt@...> wrote:
>
> Hi James,
> Thanks for your guidance, I hadn't tried etching yet because of the toner scatter!
> It's only a fine dusting so you may well be right that it will etch through OK.
> I'll let you know how I get on,
> Brian
>   ----- Original Message ----- 
>   From: jamesmichaelnewton 
>   To: Homebrew_PCBs@yahoogroups.com 
>   Sent: Monday, April 26, 2010 5:11 PM
>   Subject: [!! SPAM] [Homebrew_PCBs] Re: Hybrid of Inkjet & Toner Method
> 
> 
>     
>   Just etch through it. Since the fine layer isn't enough to block the etchant, it undercuts the individual grains of toner and removes the copper anyway.
> 
>   Or are you getting a solid coating on the bare copper? 
> 
>   You can use a little bit of air or tapping to knock off excess toner, although that removes ANY toner, I find it doesn't remove much from the inked areas. I just let it sit for a while so the toner in the ink has a chance to really settle in, then I tap it upside down and sometimes blow on it a bit with canned air. Once in a while I have to manually clear areas between pads that are too close to each other by scraping off the toner with a sharp blade or probe.
> 
>   Another issue is humidity... and static... there may be a fine balance between the two.
> 
>   Please let us know how it goes and what you find works for you?
> 
>   --
>   James.
> 
>   --- In Homebrew_PCBs@yahoogroups.com, "g3umt" <g3umt@> wrote:
>   >
>   > Hi,
>   > I'm fairly new to the group and finding your post's very useful. I have purchased and modified an Epson S21 printer and have been experimenting with Ink/Toner hybrid method.
>   > The info available seems to say dust the wet ink with toner which I find works and produces a good tough coat of resist. I can't however stop a fine layer of toner sticking to the bare copper! 
>   > Anybody using this method? if so, how do you apply the toner to stop this problem please.
>   > 
>   > Regards,
>   > Brian
>   >
> 
> 
> 
>   
> 
> [Non-text portions of this message have been removed]
>