Hi!
nice to hear you like the group.
the 8mil samples are by Pedro i think.
i do 10mil without thinking now, but i am sure 8mil would be ok too.
my quality is slightly below Pedros, i still have a little trace widening
which i need to eliminate by using lower toner density setting.
I use Orcad layout, i looked into eagle also, i guess it is quite workable.
To the hole size:
This is no problem if they are too small ;-) .
the drill can easily drill the copper.
Most software actually makes the holes smaller than the drill.
this centers it better and you have not so much problems if there is a
small offest.
The hole is only there for guifing the drill, so that it drills through the
center.
there is no need (and maybe even disadvantage) having them exactly the
drill diameter.
It is different if you give the layout away to be made, then you need a
drill plan
with correct sizes.
I'm sure there is a way to do this easily if you really need it, i don't
know eagle
enough. sorry.
But i really think this will not be to any disadvantage for you when making
the pcb.
MUCH more important are big enough copper rings around the hole.
they are often designed for through-hole plated boards.
there the top and bottom side is connected through a tiny copper
pipe in the hole. obviously this holds quite good (like a rivet).
it is hard to do that at home, and there is not often the need.
but if you don't have through hole plating all that holds your
copper pad on the board is the glue.
Therefore it may be necessary to change the pads for your needs.
(second set of libraries or so)
Stefan
On Wed, 07 Jan 2004 02:21:24 -0000, joshdewinter <
joshdewinter@...>
wrote:
> Hi everyone, and thanks for the warm welcome Stefan. I poked around and
> saw the database and photos, and was darn impressed. I ran down to the
> WalMart in town here to find the cheapest glossy photo paper I have ever
> found, and am itching to try out the toner transfer method with it.
> I was especially impressed with the photos under the headed of "TT8mil".
> Who did them, and with what method? The board looks great.
> What seems to be the software of choice that people find the easiest to
> use for layout?
> I have an Eagle question too. I find that I'd like the holes on many
> parts that are in the Eagle libraries are just too small for me to drill
> by hand, and I'd like to make them bigger, but I don't want to modify
> every part file to update the hole size. Is there any way to do this
> easily? I've found kind of a crazy way that works is to actually place
> big vias over the pads. Eagle won't let you directly place a via over a
> pad, however, it will let you place one close to it, then scoot it over
> the pad after it's been placed. It's kinda corny, and takes a while.
> There's got to be a better way. :)
>
> Thanks in advance,
> Josh
>
>