[kicad-users] Re: I need a footprint for a 5W wire-wound rectangular resistor...

2007-10-27 Thread yajeed2000
--- In kicad-users@yahoogroups.com, j3r3m3l33 [EMAIL PROTECTED] wrote:

 Can someone point me to a footprint to import into Kicad that
 is for a 10W wire wound ceramic resistor? It's for the resistors
 that you see in this photograph: 
 
 http://users.ece.gatech.edu/~mleach/lowtim/graphics/cktboard.JPG
 
 Thank you.

Hi,
It is very easy to make the footprint yourself using Kicad.
First find a datasheet for the resistor you are using.
In your case download this from the YAGEO website at www.yageo.com.
Using the dimensions contained in the datasheet you can then make the
footprint.
If you use another resistor because the yageo ones aren't available
follow the same procedure.

David. 



Re: [kicad-users] Re: I need a footprint for a 5W wire-wound rectangular resistor...

2007-10-27 Thread jeremy
Thanks.

I've muddled through that. How do I make a 3D model and link it
to the footprint?

On Saturday 27 October 2007 17:40:18 yajeed2000 wrote:
 --- In kicad-users@yahoogroups.com, j3r3m3l33 [EMAIL PROTECTED] wrote:
  Can someone point me to a footprint to import into Kicad that
  is for a 10W wire wound ceramic resistor? It's for the resistors
  that you see in this photograph:
 
  http://users.ece.gatech.edu/~mleach/lowtim/graphics/cktboard.JPG
 
  Thank you.

 Hi,
 It is very easy to make the footprint yourself using Kicad.
 First find a datasheet for the resistor you are using.
 In your case download this from the YAGEO website at www.yageo.com.
 Using the dimensions contained in the datasheet you can then make the
 footprint.
 If you use another resistor because the yageo ones aren't available
 follow the same procedure.

 David.



[kicad-users] Re: prototype PCBs

2007-10-27 Thread warrenbrayshaw
Ahh! I always wondered where Sparkfun Electronics got their PCBs made. 
There they are listed as a partner on the Gold Phoeonix PCB site.

Sparkfun is a fair priced, hobbyist focused company.

I'm encouraged by this association.
  


 I use   http://www.goldphoenixpcb.biz/   and so far so good. The ship 
 primarily to the US... but also to Europe.
 




Re: [kicad-users] Netlist

2007-10-27 Thread Nilton P. Silva

Hi Peter.

You should run the EEchema Annotation before, for automatic numeration.
Note that some resistor with value 120k has R? identification, after run
this tool, the character ? will be replaced by some sequential number.

You can put manually a number in this resistor as well.

Bye.

 Hi,

 Im trying to generate a netlist, but I getting this mesage:
 Item not annotated: 120K

 Somebody help me







*
Msc Nilton P. Silva
Geomedida Instrumentação e Geofísica
www.geomedida.com.br
*



Re: [kicad-users] Re: I need a footprint for a 5W wire-wound rectangular resistor...

2007-10-27 Thread jeremy

I found out the basic steps by trial end error. If anyone has
some tips - especially for getting proportions and scaling
correct, then that would be good.

Obtain wings3d from http://www.wings3d.com/
Learn how to use it from http://www.wings3d.com/doghouse.php
and see what else it can do by looking up wings3d in youtube.
When you are ready to create a 3d component, then make one
using wings and concentrate only on the relative proportions.
This is because Kicad's module editor links the 3D in and scales
and rotates according to your needs. Therefore, a basic axial R
component could be scaled differently for different wattage.
Hint: A toroid can by streached and cut in half to make leads,
while a cylinder or cubes make the basis of the component
itself.

Save the wings file. Then export it into VRML 2.0 format.
This is what Kicad can read.

Create your footprint in Kicad, use it in your PCB layout.
Double-click on the PCB footprint while in PCB layout 
and then click the tab to set up 3d. Browse to the
VRML 3d exported file. Find the right scaling
and orientation to make the leads fit into the pads in the
footprint. Update the library and your board. Test the
3D view.

Learning curve: About 4 hours or so.


On Saturday 27 October 2007 18:17:22 jeremy wrote:
 Thanks.

 I've muddled through that. How do I make a 3D model and link it
 to the footprint?