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Messages 571 - 601 of 601   Oldest  |  < Older  |  Newer >  |  Newest
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571
Greg, Someone has done that for us. Go to http://www.freepcb.com/ click on downloads, there you will find IPC7351-Least_v2.zip, IPC7351-Nominal_v2.zip and...
Ron Tonneson
k0qvf
Offline Send Email
Jun 17, 2009
11:21 am
572
Not too sure what you want here. 1. sounds as if you are intending to use the autorouter. I believe there are methods to set a keepout for this - see the...
a10d0n
Offline Send Email
Jun 17, 2009
3:59 pm
574
Philip,thanks for the reply,Let me clarify more 1,Actually,i wanna set an area which can't be routed,this area can keep out the routing trace automatically.So...
leonshan@...
leonshan...
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Jun 18, 2009
3:42 am
575
Try Freeroute with a small design to start with. Make sure you have a board outline defined. I just tried it and it worked OK. I think the 'KeepOut' uses a...
a10d0n
Offline Send Email
Jun 18, 2009
4:30 pm
576
Hi Leon, Please read the FpcROUTE User Guide to see how to run a FreePCB project through Freerouter. The guide is included in the FpcROUTE distribution archive...
Bruce Parham
obparham
Offline Send Email
Jun 18, 2009
8:30 pm
577
I can not seem to get the 'FPC Poly' program to install. I followed the install directions and still the screen just blinks and the program does not...
SapphireGin2
Offline Send Email
Jun 19, 2009
4:34 pm
578
Hi Greg, Sorry to hear you're having trouble. If you are running under Vista, I think you need to be logged in as administrator to make changes/additions to ...
Bruce Parham
obparham
Offline Send Email
Jun 21, 2009
4:28 pm
579
It is harder than that actually. A program that wants to write to a directory under Program Files is looking for trouble. The way that has been recommended...
Rick Collins
gnuarm
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Jun 22, 2009
12:06 pm
580
Thanks for the comments. I do not have Admin access here at work. I can live without it. Greg...
SapphireGin2
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Jun 23, 2009
8:38 pm
581
As I zoom in on a via and begin to strip away the layer views, it seems that the via makes electrical contact with all layers. Is this true? Is a via a...
SapphireGin2
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Jun 24, 2009
7:31 pm
582
Greg, Yes the via goes through the whole thickness af the board, FreePCB does not do blind vias. The via in your example should not connect the the ground...
Ron Tonneson
k0qvf
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Jun 24, 2009
8:06 pm
583 SapphireGin2
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Jun 25, 2009
12:47 pm
584
It was recommended that I use vias to connect the 2 ground planes at various points in the board to ensure that the ground planes on my 2 layer board are not...
SapphireGin2
Offline Send Email
Jul 6, 2009
4:24 pm
585
... The short answer is no, vias can only be added to traces. But don't give up, it can still be done. In no-mans land, you'll need to add a pin. Create a...
Bruce Parham
obparham
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Jul 6, 2009
7:25 pm
586 SapphireGin2
Offline Send Email
Jul 7, 2009
2:36 pm
587
To what point (or end) should I be concerned with thermal dissipation and impedance values in the traces on my board? How do I calculate these values? - The...
SapphireGin2
Offline Send Email
Jul 7, 2009
2:45 pm
588
... The thermal issues depend entirely on your design. But if you aren't doing anything weird, RS-232 and USB shouldn't require any thermal consideration. ...
Rick Collins
gnuarm
Offline Send Email
Jul 7, 2009
4:36 pm
589
Greg, Overall power dissipation depends mainly on component size, placement and air flow. A few large parts, spread out over the board, can obviously dissipate...
Bruce Parham
obparham
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Jul 7, 2009
6:21 pm
590
In FreePCB, can I add or subtract layers after I have started a project? Greg...
SapphireGin2
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Jul 8, 2009
3:52 pm
591
Greg, I am using version 1.354 and you can with it. Go to Project/Options and change the number there. I cannot say if this works in older versions, I do not...
Ron Tonneson
k0qvf
Offline Send Email
Jul 8, 2009
4:22 pm
592
Here's probably a majorly dumb newbie question, but with FreePCB is it possible to design oddball pads/traces for contact switches like those used under rubber...
shaddow_1971
Online Now Send Email
Jul 23, 2009
5:06 pm
593
Hi S, The short answer is yes. The trick is to create a footprint that uses overlapping pins. I did a short tutorial PDF, a few weeks back, about how to use...
Bruce Parham
obparham
Offline Send Email
Jul 23, 2009
8:18 pm
594
Hi, New to this group and FreePCB. I'm laying out my first board with this software, and realize I'm way down on the learning curve, but I'm having some...
hofcuse
Offline Send Email
Sep 15, 2009
3:01 pm
595
Barry, That is a nasty bug in version 1.355, go back to 1.354 and you will be in good shape. Ron...
Ron Tonneson
k0qvf
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Sep 15, 2009
3:06 pm
596
Thanks Ron, you're a lifesaver. Now, what about those ratlines that remain even though a trace exists? I expect that there will be errors generated (which I...
hofcuse
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Sep 16, 2009
12:04 am
597
I don't think that is a bug, but rather a "feature". It means that you connected the traces with copper, but not in a way that FPC understands that you...
gnuarm
Offline Send Email
Sep 16, 2009
12:11 am
598
This seems to be a particular problem when using plane thermals. FPC has a ratline between two pads, but if you run both pads to vias, the ratline remains....
hofcuse
Offline Send Email
Sep 16, 2009
2:01 am
599
Barry, Don't get mad. I am not sure I understand what you are doing. If you would want to send me your file attached to a private email I could try to help. ...
Ron Tonneson
k0qvf
Offline Send Email
Sep 16, 2009
2:09 am
600
I am sure of this one. The problem you describe is exactly the first problem I had with FreePCB. When you want to connect a pad to a plane, you don't just...
gnuarm
Offline Send Email
Sep 16, 2009
2:26 pm
601
Thanks, that was the problem. On to the next issue... Barry...
hofcuse
Offline Send Email
Sep 20, 2009
5:04 pm
Messages 571 - 601 of 601   Oldest  |  < Older  |  Newer >  |  Newest
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