10 Mar
2010
10 Mar
'10
12:25 p.m.
Steve, it's hard to tell. Are all of these boards used? If not, I
may be interested in one. Cutting wire out of one of these is a very
tedious job! Anyone have any quick-and-dirty suggestions?
Thanks,
Chuck
10 Mar
10 Mar
12:32 p.m.
The OK hand wirewrap tool, on the opposite end is an unwrap bit. Its pretty quick, just a
few twists on each post and its unwrapped. Still tedious. I dont know if there is an
unwrap bit for an electric WW gun, or if they even go in reverse...
How much are these going for, I would be interested in a few of them.
Randy
From: cclist at sydex.com
To: cctalk at classiccmp.org
Date: Wed, 10 Mar 2010 09:25:54 -0800
Subject: Re: Wirewrap boards update
Steve, it's hard to tell. Are all of these boards used? If not, I
may be interested in one. Cutting wire out of one of these is a very
tedious job! Anyone have any quick-and-dirty suggestions?
Thanks,
Chuck
_________________________________________________________________
Hotmail: Powerful Free email with security by Microsoft.
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12:54 p.m.
On 10 Mar 2010 at 11:32, Randy Dawson wrote:
The OK hand wirewrap tool, on the opposite end is an unwrap bit. Its
pretty quick, just a few twists on each post and its unwrapped. Still
tedious. I dont know if there is an unwrap bit for an electric WW
gun, or if they even go in reverse...
I've chucked an unwap bit in an electric screwdriver, but it takes a
*lot* of time to undo one of these and you'll go blind doing it,
peering through a forest of pins on 0.100" centers.
I was thinking about a tool that would simply slide over the 0.025"
square post and cut the wraps off. Maybe I'm dreaming.
--Chuck
1:22 p.m.
I've seen wirewrap guns twist off pins. Your idea of a slow turning one
with an unwrap pin in a screwdriver at maybe 30 to 60 rpm max is way better.
Recall that the assemblers may have tweaked or weakened the pins, so a
major twist with a high torque or speed power tool will probably take
off pins as well as wire. Also the wire will be attached to other pins
and as you cut off the wire at one end you will be pulling and perhaps
setting up problems at the other end of the wire, unless you have
something other than the unwrap bit.
On 3/10/2010 9:54 AM, Chuck Guzis wrote:
On 10 Mar 2010 at 11:32, Randy Dawson wrote:
The OK hand wirewrap tool, on the opposite end is
an unwrap bit. Its
pretty quick, just a few twists on each post and its unwrapped. Still
tedious. I dont know if there is an unwrap bit for an electric WW
gun, or if they even go in reverse...
I've chucked an unwap bit in an electric screwdriver, but it takes a
*lot* of time to undo one of these and you'll go blind doing it,
peering through a forest of pins on 0.100" centers.
I was thinking about a tool that would simply slide over the 0.025"
square post and cut the wraps off. Maybe I'm dreaming.
--Chuck
11 Mar
11 Mar
4:35 a.m.
----- Original Message -----
From: "Randy Dawson" <rdawson16 at hotmail.com>
To: "classic computers" <cctalk at classiccmp.org>
Sent: Wednesday, March 10, 2010 12:32 PM
Subject: RE: Wirewrap boards update
The OK hand wirewrap tool, on the opposite end is an unwrap bit. Its pretty
quick, just a few twists on each post and its unwrapped. Still tedious. I
dont know if there is an unwrap bit for an electric WW gun, or if they even
go in reverse...
How much are these going for, I would be interested in a few of them.
Randy
Randy,
I'm asking $20 each plus postage.
See ya, SteveRob
4:33 a.m.
Steve, it's hard to tell. Are all of these boards
used? If not, I
may be interested in one. Cutting wire out of one of these is a very
tedious job! Anyone have any quick-and-dirty suggestions?
Thanks,
Chuck
Chuck,
All the boards are previously used. I looked to see if any of them were low
density but, they've all got lots of wires on them.
I generally use a hand-wrapping tool to unwind the wires. I really don't
know of an easier way to unwind them. It's tedious work but, if you're doing
small projects like I was, you can do a small area and then cut that section
from the bigger board.
See ya, SteveRob
12:46 p.m.
On 11 Mar 2010 at 4:33, Steve Robertson wrote:
I generally use a hand-wrapping tool to unwind the
wires. I really
don't know of an easier way to unwind them. It's tedious work but, if
you're doing small projects like I was, you can do a small area and
then cut that section from the bigger board.
I do my boards a bit differently. I use single-sided FR4 PCB,
usually 0.060" thick and drill holes for the pins and punch them in
(slighly countersinking the foil side). It's only a little more work
than using the gridded-out-lots-of-pins protoboards, but more than
makes up for it in that components are easy to identify (no "forest
of pins" effect) and presents a ground plane that's second to none.
--Chuck
12 Mar
12 Mar
5:36 a.m.
I generally use a hand-wrapping tool to unwind
the wires. I really
don't know of an easier way to unwind them. It's tedious work but, if
you're doing small projects like I was, you can do a small area and
then cut that section from the bigger board.
I do my boards a bit differently. I use single-sided FR4 PCB,
usually 0.060" thick and drill holes for the pins and punch them in
(slighly countersinking the foil side). It's only a little more work
than using the gridded-out-lots-of-pins protoboards, but more than
makes up for it in that components are easy to identify (no "forest
of pins" effect) and presents a ground plane that's second to none.
--Chuck
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days inactive
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