Re: gEDA-user: footprints needed

["Dominique Michel" <dominiquemichel@xxxxxxxxxxx>]

Yes, it was what I was trying. I get this for a noval socket:

Element["" "" "" "" 236220 196850 0 0 0 100 ""]
(
	Pin[12599 39370 9896 2000 10496 3574 "" "3" "edge2"]
	Pin[41339 0 9896 2000 10496 3574 "" "a" "edge2"]
	Pin[-33070 24410 9896 2000 10496 3574 "" "5" "edge2"]
	Pin[-33070 -24409 9896 2000 10496 3574 "" "7" "edge2"]
	Pin[33465 24410 9896 2000 10496 3574 "" "2" "edge2"]
	Pin[12599 -39370 9896 2000 10496 3574 "" "9" "edge2"]
	Pin[-13385 39370 9896 2000 10496 3574 "" "4" "edge2"]
	Pin[-13385 -38976 9896 2000 10496 3574 "" "8" "edge2"]
	Pin[-41338 0 9896 2000 10496 3574 "" "6" "edge2"]
	ElementArc [0 1 43308 43308 180 90 1000]
	ElementArc [0 0 43307 43307 270 90 1000]
	ElementArc [-42914 0 393 393 270 90 1000]
	ElementArc [0 0 43307 43307 0 90 1000]
	ElementArc [0 -1 43308 43308 90 90 1000]

	)


It is 9 VIA on the cooper and a circle on the silk. I just not understand 
why it is 5 arc to do the circle. I believe at I must remove the third ac.
I have done this from inside pcb. It is not perfect but look very well. Now, 
I can recalulate it and edit the file by hand to do a perfect design.

Thanks,
Dominique


> From: "Phil Taylor" <phil@xxxxxxxxxxxxxxxxxxxxxxxx>
>
> PCB's footprints are totally cartesian.  You can make newlib footprints 
> with
> your calculator's trig functions to find the x,y positions of the holes.
>
> This is a footprint best done in text.
>
> It IS possible to make arcs with angles other than 0 or 90 in PCB.  You'll 
> use
> your text editor and specify the starting angle and the angle to be 
> covered.
>
> You may want to put arcs around the outsides of the holes as well.
>
> For example here is a toroidal inductor with it's mounting pins on a 45 
> deg.
> angle:
>
> Element[0x00000000 "1000uH" "L?" "" 100000 100000 0 0 0 100 0x00000000]
> (
> 	Pin[42430 -42430 10000 2000 10600 4900 "" "2" 0x00004001]
> 	Pin[-42430 42430 10000 2000 10600 4900 "" "1" 0x00004001]
> 	ElementArc [0 0 60000 60000 51 168 1000]
> 	ElementArc [0 0 60000 60000 231 168 1000]
> 	ElementArc [42430 -42430 6000 6000 135 180 1000]
> 	ElementArc [-42430 42430 6000 6000 315 180 1000]
> 	)
>
> Phil Taylor
>
>
>
>
>
> "Dominique Michel" <dominiquemichel@xxxxxxxxxxx> wrote:
>
> > Hi,
> >
> > I need to use footprints for vacuum tubes sockets as in
> > http://www.belton.co.kr/jack/vacuum-3.html
> > For the noval socket, it is 9 VIAs on a circle of 21 mm diameter, 36°
> > between each VIA.
> > I need other sockets too as in http://www.tube-shop.com/sockets.asp, so 
> I
> > don't know if it is a way with pcb to write an arc that don't have 90°
> > aperture. Another way would be to use the old library file format.
> >
> > Have somebody  any clue on how to do that, or an existing file to share?
> >
> > Best,
> > Dominique
> >
> > _________________________________________________________________
> > MSN Messenger : discutez en direct avec vos amis !
> > http://www.msn.fr/msger/default.asp
> >
> >

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