Re: [kicad-users] Single layer board: using wire jumpers in newpcb

2007-03-03 Thread YD

--- peterhaaf [EMAIL PROTECTED]
wrote:

 Hi all,
 
 this is the first i am asking in this group, also i
 am used to read
 quite a long time now. I have done a couple of
 simple designs yet
 all without much problems, but i wouldn´t call
 myself as a Kicad 
 expert. I hope this will change and i will be able
 to contribute
 here as well.
 
 My question may be a bit stupid, but i had no real
 luck dealing
 with this issue.
 I want to design a single layer board. So i need to
 use wire jumpers
 to get some parts conected. I can insert holes and
 draw a graphical 
 line to be able to remember this jumper later, but
 since i do not have
 this jumber in the netlist, nothing keeps track of
 this junction, i
 can not run a design check successfully, etc.
 
 I hope one understands what i mean, and hope much
 more that someone
 can suggest a solution.
 
 Thanx, Peter
 
 PS: Many thanx to you all, esp. to the developers,
 without this
 wonderful software would not exist.
 
 

If you really, really, must have them on the BOM
you'll need to create them as special symbols in the
schematic and corresponding foot-prints in the
lay-out. The couple of times I needed this I made them
as zero-ohm resistors with a 400 mil foot-print. For a
configurable board I made a jumper symbol with a 100
mil fp.

As others have mentioned, the usual way is to make a
double-sided board making sure the top-side tracks are
all straight lines[1]. Length can be variable as
needed. Be sure to check the via size. Won't show up
on the BOM but after assembly any empty holes will be
quite conspicuous. You can always draw a line between
them on the silk-screen.

[1] Not necessarily. I have seen boards with diagonal
and wiggly jumpers, sometimes under it. May be bad
form, but hey, if it works...

- YD.



 

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Re: [kicad-users] Single layer board: using wire jumpers in newpcb

2007-03-03 Thread Dan Andersson
On Saturday 03 March 2007 10:57:39 YD wrote:
 If you really, really, must have them on the BOM
  you'll need to create them as special symbols in the
  schematic and corresponding foot-prints in the
  lay-out. The couple of times I needed this I made them
  as zero-ohm resistors with a 400 mil foot-print. For a
  configurable board I made a jumper symbol with a 100
  mil fp.

  As others have mentioned, the usual way is to make a
  double-sided board making sure the top-side tracks are
  all straight lines[1]. Length can be variable as
  needed. Be sure to check the via size. Won't show up
  on the BOM but after assembly any empty holes will be
  quite conspicuous. You can always draw a line between
  them on the silk-screen.

  [1] Not necessarily. I have seen boards with diagonal
  and wiggly jumpers, sometimes under it. May be bad
  form, but hey, if it works...

  - YD.



This is the correct way to do it!

The main reason is that you can make the modules with bg pads and drill 
holes.

Pissing about with changing pads on a layer is just bad practice!

This way, you can use the BOM to verify the presence of all pads.


//Dan

-- 
Dan Andersson, M0DFI
[EMAIL PROTECTED]