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| Fri, 18 Oct 2019 15:38:56 -0700 (PDT) | |
| Date: | Fri, 18 Oct 2019 22:38:29 +0000 |
| From: | "John L. Males (jlmales AT gmail DOT com) [via geda-help AT delorie DOT com]" <geda-help AT delorie DOT com> |
| To: | geda-help AT delorie DOT com |
| Subject: | [geda-help] Question: New User - How To Create Very Simple Unique PCB With No |
| Components | |
| Message-Id: | <20191018223829.6ad6ca73fb2d77c5f389399e@gmail.com> |
| Organization: | Toronto, Ontario |
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hello,
This is my first posting here. I do not know if the mailing
list will automatically eMail me a reply. I have looked at the
mailing list commands and options I cannot find if and how I
may set if replies to me or others can be set.
I am new to PCB software, but have reasonable average
electronics skills over a number of years.
I have a simple and unique challenge I have tried many different
ways to figure out. I have done alot of internet searching,
looked at many tutorials, and tried using PCB based on
tutorials and my own exploring about PCB to find how I do this
simple and unique PCB.
I need to create a PCB that has a copper plane on top and
bottom of the PCB. That simple. No components. It is likely
via a third layer between the top and bottom copper planes I
will want traces out to holes I may make as solder tabs or us a
connector of some type. The reason for the trace connections
as a third layer is to ensure the traces do not short with the
aluminum parts metal part the PCB has to be mounted to directly
at each end of the PCB.
Then I will need to create a set of holes in the parallel
copper planes area whose sole purpose is to let air pass between
and not be a connection between the top and bottom copper
planes.
If I need to specify a PCB thickness then how I do so. So far
I have not been able to find a setting/preference for the PCB
thickness to do so.
The how to do the connector and/or solder tab is not critical
to the primary question. I will try to figure that out after I
have the most important part of the PCB as noted above done in
PCB.
I will need to do a second PCB, but it will have lots of
components on it. I would need to enter the schematic first of
curse. I suspect I will manage with the help examples I have
already read and will read again when I am ready to create a
PCB from the schematic.
If there is any missing part of the information to my core
question of copper planes on top/bottom and holes in the
copper plane that do not connect the top and bottom copper
planes feel free to ask or comment on.
John L. Males
Toronto, Ontario
Canada
18 October 2019 18:38 -0400 EDT
================================================================
2019-10-18 22:05:20+0000-UTC Time: 1571436320 PC/System time
18 Oct 22:05:20 ntpdate[85789]: ntpdate 4.2.8p12-a (1)
18 Oct 22:05:35 ntpdate[87775]: step time server 206.108.0.131
offset -0.004716 sec
FreeBSD 11.3-STABLE FreeBSD 11.3-STABLE #0 r349903: Thu Jul 11
16:13:47 UTC 2019
root AT releng2 DOT nyi DOT freebsd DOT org:/usr/obj/usr/src/sys/GENERIC
(Work in progress alternative to Linux Kernel of its own right,
Debian, and
other Linux based Kernel distributions determined.)
Intel(R) Core(TM) i3-2367M CPU @ 1.40GHz
Intel(R) Core(TM) i3-2367M CPU @ 1.40GHz (1396.86-MHz K8-class
CPU) Intel(R) Core(TM) i3-2367M CPU @ 1.40GHz (1396.86-MHz
K8-class CPU) Intel(R) Core(TM) i3-2367M CPU @ 1.40GHz
(1396.86-MHz K8-class CPU) Intel(R) Core(TM) i3-2367M CPU @
1.40GHz (1396.86-MHz K8-class CPU) Intel(R) Core(TM) i3-2367M
CPU @ 1.40GHz (1396.86-MHz K8-class CPU)
dev.cpu.0.temperature: 71.0C
dev.cpu.1.temperature: 70.0C
dev.cpu.2.temperature: 66.0C
dev.cpu.3.temperature: 66.0C
hw.acpi.thermal.tz0.temperature: 72.1C
vmstat -s:
128476253 cpu context switches
4928508 device interrupts
661878 software interrupts
41825629 traps
346413636 system calls
27 kernel threads created
3000 fork() calls
793 vfork() calls
0 rfork() calls
0 swap pager pageins
0 swap pager pages paged in
0 swap pager pageouts
0 swap pager pages paged out
8688 vnode pager pageins
120478 vnode pager pages paged in
322 vnode pager pageouts
3527 vnode pager pages paged out
3 page daemon wakeups
19153450 pages examined by the page daemon
0 clean page reclamation shortfalls
198910 pages reactivated by the page daemon
502073 copy-on-write faults
9226 copy-on-write optimized faults
27520777 zero fill pages zeroed
24413 zero fill pages prezeroed
1622 intransit blocking page faults
42301697 total VM faults taken
12576 page faults requiring I/O
0 pages affected by kernel thread creation
357307 pages affected by fork()
28026 pages affected by vfork()
0 pages affected by rfork()
30941382 pages freed
89018 pages freed by daemon
13777017 pages freed by exiting processes
470801 pages active
1014759 pages inactive
191320 pages in the laundry queue
234660 pages wired down
96191 pages free
4096 bytes per page
3108988 total name lookups
cache hits (93% pos + 4% neg) system 0% per-directory
deletions 0%, falsehits 0%, toolong 0%
Boot time : 1571414099
procs memory page disks
faults cpu0 cpu1 cpu2 cpu3 r b w avm
fre flt re pi po fr sr ad0 pa0 in sy cs us sy
id us sy id us sy id us sy id 0 0 0 31449076 384704 1902 9
0 0 1391 861 0 0 222 15578 5778 12 8 80 14 4 82 14
4 82 14 4 82
memory info:
real memory = 8589934592 (8192 MB)
avail memory = 8166465536 (7788 MB)
last pid: 92816; load averages: 0.46, 0.66, 0.83 up
0+06:10:37 22:05:36 56 processes: 1 running, 55 sleeping
Mem: 1840M Active, 3964M Inact, 747M Laundry, 917M Wired, 474M
Buf, 375M Free Swap: 48G Total, 48G Free
hw.physmem: 8463925248
hw.usermem: 7502598144
hw.realmem: 8589934592
total used free shared
buffers cached Mem: 8030732 3587088
4443644 0 0 0 Swap:
50331644 0 50331644
swapinfo:
Device 1K-blocks Used Avail Capacity
/dev/ada0s1b 50331644 0 50331644 0%
vmstat:
procs memory page disks
faults cpu r b w avm fre flt re pi po
fr sr ad0 pa0 in sy cs us sy id 1 0 0 31449076
384420 1902 9 0 0 1392 861 0 0 222 15579 5778 14
5 82
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