Homebrew PCBs

Mark,

 

Excellent that you were able to achieve 5 mil!  Can you describe in the
details to follow what you did to modify the E260.  I know one advantage the
E260 already has over other laser printers is the 1200 dpi resolution.  

 

Jeff

 

  _____  

From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
On Behalf Of Mark Lerman
Sent: Monday, August 22, 2011 6:28 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] DLP - getting better!

 

  


Last February I suspended my dlp (direct laser printing) experiments 
to try to get a modified Epson inkjet to reliably print resist 
directly on pcbs. After 6 very frustrating months I decided that I 
cannot make it work in any simple reliable manner, though several 
people on the inkjet list do seem to be successfully making it work. 
For me, the constant effort keep the nozzles clear coupled with the 
printer's firmware that required a lot of wasted time and ink and 
numerous software issues involving the print drivers made it just too 
much "work" for my "one board every so often" needs.

So I've gone back to my attempt to use a laser printer to print toner 
directly on pcbs. Here is a link to my latest test board. All the 
traces you see ate 10 mil, except for the small group on the right, 
which are 5 mil. The scan is not very good, but all of the traces are 
intact and full width, except for one small break in one of the 5 mil 
traces. <http://www.pbase.com/mark10970/image/137444500>

This board was done with a modified Lexmark E260, but it is NOT 
modified as per my earlier documentation. I have incorporated many of 
the suggestions made by Jim <jhutch17@...
<mailto:jhutch17%40adelphia.net> > in both this list 
and via private communication, and I think his method is much simpler 
and easier to implement than mine. More details to follow.

Mark





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