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From: "Chad Parker (parker DOT charles AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Date: Wed, 10 Jul 2019 13:43:27 -0400
Message-ID: <CAJZxidDmVcBAagpszsQZRqdwPUMa7GqJMPJ+GDyrvtGoTtvrcA@mail.gmail.com>
Subject: Re: [geda-user] Thermals and pins
To: geda-user AT delorie DOT com
Reply-To: geda-user AT delorie DOT com

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Rob-

The version of pcb you are using is very old (from before I started
developing it). In the intervening time, many bugs have been fixed, and
it's quite possible that some of them were related to thermals and the
interface for placing them. If possible, please update and use the latest
version. It is very, very difficult to provide support for versions so old.

By default, the width of the thermals should be the same as the clearance
to the plane which they connect. If this is not the case, you can check in
the pcb file. Near the top there should be an entry "Thermal[0.500000]".
0.5 is the default value. Changing it to 1 will make the fingers twice the
width of the plane clearance. Values less than 0.5 will make them thinner.
You can use any intermediate value, but be aware that this is a board wide
setting. It is not currently customizable on a per thermal basis.

The following procedure should work for connecting a pin or via directly to
a plane without thermal fingers:
1. Place the element/via
2. Select the layer on which you want the plane
3. Draw the plane
4. Select the thermal tool
5. Click once on the pin/via you want to connect to the plane (the pin is
now connected to the plane with a thermal pattern)
6. While holding the shift key pressed, click four more times on the
pin/via (each click changes the thermal pattern, the last is a solid
connection).

If you are unable to get this working, I suggest you create a new file and
try the procedure with a test part. If it works for the test part, then
something about your pcb file configuration has been modified, and we can
try to figure out how to fix it. If it doesn't work on a new file then it's
a pcb bug, and you'll need to update pcb.

Also, please note that thermals currently only work with pins and vias,
they do not yet work with surface mount pads.

--Chad


On Wed, Jul 10, 2019 at 11:39 AM Rob Butts (r DOT butts2 AT gmail DOT com) [via
geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:

> The thermal is working again but the 4 traces from the pin to the plane
> are so, so thin.  When I hold the shift down while clicking the pin with
> the thermal X PCB just puts a thermal there.  I'm not getting any
> additional options.  I'm not having any luck changing from different
> thermal types.
>

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<div dir=3D"ltr"><div>Rob-</div><div><br></div><div>The version of pcb you =
are using is very old (from before I started developing it). In the interve=
ning time, many bugs have been fixed, and it&#39;s quite possible that some=
 of them were related to thermals and the interface for placing them. If po=
ssible, please update and use the latest version. It is very, very difficul=
t to provide support for versions so old.</div><div><br></div><div>By defau=
lt, the width of the thermals should be the same as the clearance to the pl=
ane which they connect. If this is not the case, you can check in the pcb f=
ile. Near the top there should be an entry &quot;Thermal[0.500000]&quot;. 0=
.5 is the default value. Changing it to 1 will make the fingers twice the w=
idth of the plane clearance. Values less than 0.5 will make them thinner. Y=
ou can use any intermediate value, but be aware that this is a board wide s=
etting. It is not currently customizable on a per thermal basis.<br></div><=
div><br></div><div>The following procedure should work for connecting a pin=
 or via directly to a plane without thermal fingers:</div><div>1. Place the=
 element/via</div><div>2. Select the layer on which you want the plane</div=
><div>3. Draw the plane</div><div>4. Select the thermal tool</div><div>5. C=
lick once on the pin/via you want to connect to the plane (the pin is now c=
onnected to the plane with a thermal pattern)<br></div><div>6. While holdin=
g the shift key pressed, click four more times on the pin/via (each click c=
hanges the thermal pattern, the last is a solid connection).</div><div><br>=
</div><div>If you are unable to get this working, I suggest you create a ne=
w file and try the procedure with a test part. If it works for the test par=
t, then something about your pcb file configuration has been modified, and =
we can try to figure out how to fix it. If it doesn&#39;t work on a new fil=
e then it&#39;s a pcb bug, and you&#39;ll need to update pcb.</div><div><br=
></div><div>Also, please note that thermals currently only work with pins a=
nd vias, they do not yet work with surface mount pads.<br></div><div><br></=
div><div>--Chad<br></div><div><br></div></div><br><div class=3D"gmail_quote=
"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Jul 10, 2019 at 11:39 AM Ro=
b Butts (<a href=3D"mailto:r DOT butts2 AT gmail DOT com">r DOT butts2 AT gmail DOT com</a>) [via=
 <a href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delorie DOT com</a>] &lt;<a=
 href=3D"mailto:geda-user AT delorie DOT com">geda-user AT delorie DOT com</a>&gt; wrote:=
<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8=
ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr=
">The thermal is working again but the 4 traces from the pin to the plane a=
re so, so thin.=C2=A0 When I hold the shift down while clicking the pin wit=
h the thermal X PCB just puts a thermal there.=C2=A0 I&#39;m not getting an=
y additional options.=C2=A0 I&#39;m not having any luck changing from diffe=
rent thermal types.</div>
</blockquote></div>

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