Homebrew PCBs

pcb-gcode ulp does Isolation 
It also comes with decent documentation. John Johnson did a great job with these files. 

JT


  ----- Original Message ----- 
  From: Dave Mucha 
  To: Homebrew_PCBs@yahoogroups.com 
  Sent: Sunday, May 16, 2004 9:19 AM
  Subject: [Homebrew_PCBs] Re: New to group and first attempt at PCB


  --- In Homebrew_PCBs@yahoogroups.com, "Hugh Prescott" <hugh345@a...> 
  wrote:
  > You need the gcode.ulp user loadable program fron the Eagle site. 
  It downloads as a zip file.
  > 
  > 
  > Then you load and run the gcode.ulp file.
  > 
  > 
  > Hugh


  I have not run Eagle, but I would assume it will only export a trace 
  file, and not an isolation file?

  Take a look in the photos section under Daves drill press folder.

  There is a shot of a trace file around some pads.  The red is a 
  second pad isolation cut to allow more room for soldering.

  Dave






  > 
  >   ----- Original Message ----- 
  >   From: teilhardo 
  >   To: Homebrew_PCBs@yahoogroups.com 
  >   Sent: Saturday, May 15, 2004 7:08 PM
  >   Subject: [Homebrew_PCBs] Re: New to group and first attempt at PCB
  > 
  > 
  >   I am using TurboCNC for the mill.  But at this point I don't even 
  know
  >   how to get output from Eagle.  I have looked under export but it 
  says
  >   "netlist", "partlist" and "pinlist", no gerber output :(
  > 
  >   --- In Homebrew_PCBs@yahoogroups.com, "Dave Mucha" 
  <dave_mucha@y...>
  >   wrote:
  >   > --- In Homebrew_PCBs@yahoogroups.com, "teilhardo" 
  <teilhardo@y...> 
  >   > wrote:
  >   > > Thanks for the link.
  >   > > I didn't mention that I have a CNC mill that I could use to 
  make the
  >   > > traces.  Unfortunately, I don't know how to export the layout 
  as a
  >   > > series of component footprints and then draw lines in a CAD 
  program.
  >   > > Does anyone know how to do this?
  >   > > Thanks,
  >   > > Tei
  >   > 
  >   > 
  >   > In your attempts, use a paper and a marker for the first 
  tries.  One 
  >   > thing you need it 'trace isolation' and not cutting traces.
  >   > 
  >   > Cutting the traces of the Gerber files will remove the copper 
  you 
  >   > want, and leave everything else.
  >   > 
  >   > I think it is best to start at the mill and work backwards.
  >   > 
  >   > What are you using to run the mill ?
  >   > What file type can that program accept ?
  >   > What conversion is needed to get that from your PCB software ?
  >   > 
  >   > The easy part is getting output from Eagle or others.
  >   > 
  >   > The hard part is getting a file your mill can use.
  >   > 
  >   > 
  >   > Dave
  >   > 
  >   > 
  >   > 
  >   > 
  >   > 
  >   > 
  >   > 
  >   > 
  >   > 
  >   > 
  >   > 
  >   > > 
  >   > > --- In Homebrew_PCBs@yahoogroups.com, "leon_heller" 
  >   > <leon_heller@h...>
  >   > > wrote:
  >   > > > --- In Homebrew_PCBs@yahoogroups.com, "teilhardo" 
  >   > <teilhardo@y...> 
  >   > > > wrote:
  >   > > > > Hi All,
  >   > > > > I just joined this group because I am planning to make a 
  >   > homemade
  >   > > > > motor controller using the LMD18201 H-Drive.  I am pretty 
  new at
  >   > > > > circuit design but I wanted to attempt this project using 
  the
  >   > > > > computer. Inevitably, I ran into some problems.  I tried 
  PCB123 
  >   > and
  >   > > > > some other "free" Cad programs on the net but they all 
  have the
  >   > > > > handicaps that limited a succesful product.  What is the 
  most 
  >   > > > popular
  >   > > > > software used on this forum for PCB schematic/layout 
  design?  
  >   > Are
  >   > > > > there any plugins for more common CAD programs like Rhino?
  >   > > > > Thanks,
  >   > > > > Tei
  >   > > > 
  >   > > > The free demo version of Pulsonix will handle boards with 
  up to 
  >   > 100 
  >   > > > holes:
  >   > > > 
  >   > > > http://www.pulsonix.com
  >   > > > 
  >   > > > Leon
  > 
  > 
  > 
  >   Be sure to visit the group home and check for new Bookmarks and 
  files:
  >   http://groups.yahoo.com/group/Homebrew_PCBs 
  > 
  > 
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