14 Oct
2015
14 Oct
'15
2:17 p.m.
I found a company selling new 8" 32-sector hard sector floppies.
http://www.athana.com/html/diskette.html Item # 47-0801
They want $150 per box of 10. That's a pretty hefty pricetag... but in the
absence of other suppliers I may just have to break down and buy a box from
them.
J
14 Oct
14 Oct
8:39 p.m.
I could spare one - but probably only one.
JRJ
On 10/14/2015 4:17 PM, Jay West wrote:
I found a company selling new 8" 32-sector hard
sector floppies.
http://www.athana.com/html/diskette.html Item # 47-0801
They want $150 per box of 10. That's a pretty hefty pricetag... but in the
absence of other suppliers I may just have to break down and buy a box from
them.
J
15 Oct
15 Oct
8:17 a.m.
I doubt it. They need to be very accurate, and one would not want to
open the sleeve to punch one.
JRJ
On 10/14/2015 10:39 PM, ben wrote:
On 10/14/2015 9:39 PM, Jay Jaeger wrote:
I could spare one - but probably only one.
JRJ
Did they ever make punch to make your own?
Ben.
11:36 a.m.
I doubt it. They need to be very accurate, and one
would not want to
open the sleeve to punch one.
A set of 10- and 16-hole punching jigs were done by a list member some
years ago. They work through the window in the sleeve, so don't require
opening the sleeve. But they're for 5.25".
De
2:19 p.m.
So, hole by hole - what about the extra hole for the index - one would need the jig to
have an extra hole for the punch for that at 1/2 spacing.
Sent from my iPad
On Oct 15, 2015, at 13:36, Dennis Boone <drb at msu.edu> wrote:
I doubt it.
They need to be very accurate, and one would not want to
open the sleeve to punch one.
A set of 10- and 16-hole punching jigs were done by a list member some
years ago. They work through the window in the sleeve, so don't require
opening the sleeve. But they're for 5.25".
De 
7:13 p.m.
On 10/15/2015 02:19 PM, Jay Jaeger wrote:
So, hole by hole - what about the extra hole for the
index - one
would need the jig to have an extra hole for the punch for that at
1/2 spacing.
> A set of 10- and 16-hole punching jigs were done
by a list member
> some years ago. They work through the window in the sleeve, so
> don't require opening the sleeve. But they're for 5.25".
If this was my circus, I'd machine a fixture consisting of a plate with
the 33 sector/index holes precision-drilled and a top plate with the
same holes and a hub for the floppy to fit over. Use the index hole to
align the thing and then, using a sharpened punch, go around the entire
32-hole circuit. Presto--a pefectly-punched disk.
The more elite may want to punch the holes with a laser. In either
case, the cookie has to come out of the envelope, but that's usually not
much of a problem.
Or go over to vintage-computer.com. There's a fella there who's using
an MCU to generate the sector pulses for 5.25" floppies.
--Chuck
7:54 p.m.
The punch aligns with the index hole since we are starting with soft-sector media and
that's the only hole we have. Then it "clamps" the media and you rotate the
punch and the media together to align each sector hole with a hole in the template part of
the punch and slam the punch pin through. It's harder to put in words than it is to
do.
Generally, they worked pretty well. The original idea was Dwight's and I had a friend
with precision machine shop build them from aluminum and delrin.
Some users complained about "hanging chads" as the punch pin sometimes
didn't cut the media cleanly but this was fairly rare.
Chris
On October 15, 2015 4:19:24 PM CDT, Jay Jaeger <cube1 at charter.net> wrote:
So, hole by hole - what about the extra hole for the
index - one would
need the jig to have an extra hole for the punch for that at 1/2
spacing.
Sent from my iPad
On Oct 15, 2015, at 13:36, Dennis Boone <drb at msu.edu> wrote:
some
--
Chris Elmquist
> I doubt it. They need to be very accurate,
and one would not want
to
open the
sleeve to punch one.
A set of 10- and 16-hole punching jigs were done by a list member years ago. They work through the window in the
sleeve, so don't
require
> opening the sleeve. But they're for 5.25".
>
> De 
16 Oct
16 Oct
8:18 a.m.
I do still have some 16 hole 5-1/4 punches left. ( anyone want one? )
Actually it was stainless and Delrin.
I'd makes some slight changes if I did it again.
It really needed two alignment pins.
It didn't need to have the envelope removed. One rotated the envelope to
expose the next hole location.
Dwight
From: chrise at pobox.com
The punch aligns with the index hole since we are starting with soft-sector media and
that's the only hole we have. Then it "clamps" the media and you rotate the
punch and the media together to align each sector hole with a hole in the template part of
the punch and slam the punch pin through. It's harder to put in words than it is to
do.
Generally, they worked pretty well. The original idea was Dwight's and I had a
friend with precision machine shop build them from aluminum and delrin.
Some users complained about "hanging chads" as the punch pin sometimes
didn't cut the media cleanly but this was fairly rare.
Chris
On October 15, 2015 4:19:24 PM CDT, Jay Jaeger <cube1 at charter.net> wrote:
So, hole by hole - what about the extra hole for
the index - one would
need the jig to have an extra hole for the punch for that at 1/2
spacing.
Sent from my iPad
On Oct 15, 2015, at 13:36, Dennis Boone <drb at msu.edu> wrote:
some
--
Chris Elmquist > I doubt it. They need to be very accurate,
and one would not want
to
open the
sleeve to punch one.
A set of 10- and 16-hole punching jigs were done by a list member years ago. They work through the window in the
sleeve, so don't
require
> opening the sleeve. But they're for 5.25".
>
> De 
8:53 a.m.
On Oct 16, 2015, at 8:18 AM, dwight <dkelvey at hotmail.com> wrote:
I do still have some 16 hole 5-1/4 punches left. (
anyone want one? )
I?d love to see a picture of one just to see how it was made and how it clamps to the
disk.
--
Follow me on twitter: @FozzTexx
Check out my blog: http://insentricity.com
11 a.m.
On Friday (10/16/2015 at 08:53AM -0700), Chris Osborn wrote:
On Oct 16, 2015, at 8:18 AM, dwight <dkelvey at hotmail.com> wrote:
I will take some photos later today and round up some of the documentation
we had for them and then send another note with links to same.
Chris
--
Chris Elmquist
I do still have some 16 hole 5-1/4 punches left.
( anyone want one? )
I?d love to see a picture of one just to see how it was made and how it clamps to the
disk.
11:47 a.m.
On 10/16/2015 11:00 AM, Chris Elmquist wrote:
On Friday (10/16/2015 at 08:53AM -0700), Chris Osborn
wrote:
I will take some photos later today and round up some
of the
documentation we had for them and then send another note with links
to same.
Strange--up until about a year ago, I had a customer who routinely sent
me batches of hard-sector 8" floppies recorded as soft-sector. When I
asked about this, he stated that, at least for him, 8" HS floppies were
far more abundant and relatively easy to find, compared with SS ones.
He lives in Israel--maybe that made the difference.
--Chuck
19 Oct
19 Oct
7:05 a.m.
Hey Guys--
Sorry for the delay getting this out there. I finally found the
documentation package I had put together back in 2010 and it's now on
my GDrive here,
https://drive.google.com/folderview?id=0B6A73VHTVh23MS1MVERNcUZkd1U
The photos are of the 10-hole punch. We also did a 16-hole as Dwight
has mentioned and he as a few of those still available.
Dwight, I double checked the metal and we're both mis-remembering.
It's not aluminum or stainless but just tool steel that Russ polished.
You can stick a magnet to it. Therefore, probably keep these out of
the humidity or they will rust.
I also put the latest copy of the user instructions along with photos.
We may have updated that document later but this was the only copy I
could find here.
Chris
On Friday (10/16/2015 at 01:00PM -0500), Chris Elmquist wrote:
On Friday (10/16/2015 at 08:53AM -0700), Chris Osborn
wrote:
--
Chris Elmquist
On Oct 16, 2015, at 8:18 AM, dwight <dkelvey at hotmail.com> wrote:
I will take some photos later today and round up some of the documentation
we had for them and then send another note with links to same.
Chris
--
Chris Elmquist I do still have some 16 hole 5-1/4 punches left.
( anyone want one? )
I?d love to see a picture of one just to see how it was made and how it clamps to the
disk. 
7:20 a.m.
On Mon, 19 Oct 2015, Chris Elmquist wrote:
The photos are of the 10-hole punch. We also did a
16-hole as Dwight
has mentioned and he as a few of those still available.
Dwight, I double checked the metal and we're both mis-remembering.
It's not aluminum or stainless but just tool steel that Russ polished.
You can stick a magnet to it. Therefore, probably keep these out of
the humidity or they will rust.
Very timely. I had an occasion to drag out my 10-hole punch yesterday and
modify a couple of diskettes for my N*. The first time around I had a lot
of tearing that resulted in the dreaded "hanging chads". When I took a
close look at the die plate I noticed an irregular raised burr around all
the holes. After taking some fine-grit sandpaper to the surface and
leveling the holes it started working a lot better.
Maybe this will be helpful to other users.
--
7:35 a.m.
On Monday (10/19/2015 at 10:20AM -0400), Steven Hirsch wrote:
On Mon, 19 Oct 2015, Chris Elmquist wrote:
Yes. Thanks Steven. The whole project was an experiment no doubt. In the
end, I think we pushed the limits of my buddy's prototype machine shop,
asking him to make the quantity of these that he did. This resulted
in some quality issues such as you have found, where basically,
he got bored with all the detail work finishing them to perfection.
It quickly changed from being fun to being work and for hobby stuff,
I think we all understand what that means.
If we were to do these again, today, we'd need to farm out the work to
a production shop for better, more reproducible results I think.
Chris
--
Chris Elmquist
The photos are of the 10-hole punch. We also did
a 16-hole as Dwight
has mentioned and he as a few of those still available.
Dwight, I double checked the metal and we're both mis-remembering.
It's not aluminum or stainless but just tool steel that Russ polished.
You can stick a magnet to it. Therefore, probably keep these out of
the humidity or they will rust.
Very timely. I had an occasion to drag out my 10-hole punch yesterday and
modify a couple of diskettes for my N*. The first time around I had a lot
of tearing that resulted in the dreaded "hanging chads". When I took a
close look at the die plate I noticed an irregular raised burr around all
the holes. After taking some fine-grit sandpaper to the surface and
leveling the holes it started working a lot better.
Maybe this will be helpful to other users.
16 Oct
16 Oct
8:55 a.m.
Dwight wrote....
------
I'd makes some slight changes if I did it again.
------
How about support for 8"? ;)
J
15 Oct
15 Oct
7:41 p.m.
I resemble that remark ;-)
Indeed, we did not do anything for 8"
Chris
On October 15, 2015 1:36:50 PM CDT, Dennis Boone <drb at msu.edu> wrote:
--
Chris Elmquist
I doubt it.
They need to be very accurate, and one would not want to
open the sleeve to punch one.
A set of 10- and 16-hole punching jigs were done by a list member some
years ago. They work through the window in the sleeve, so don't
require
opening the sleeve. But they're for 5.25".
De
3302
days inactive
3308
days old
18 comments
9 participants
participants (9)
-
bfranchuk＠jetnet.ab.ca -
cclist＠sydex.com -
chrise＠pobox.com -
cube1＠charter.net -
dkelvey＠hotmail.com -
drb＠msu.edu -
fozztexx＠fozztexx.com -
jwest＠classiccmp.org -
snhirsch＠gmail.com