Re: DIY Paper Tape Punch - Mechanism diagram?

2020-05-02 Thread Torfinn Ingolfsen via cctalk
On Fri, May 1, 2020 at 7:32 PM Tony Duell via cctalk wrote: > > As far as I know the 5-hole side is always the most significant 5 > bits, the 3 hole side the least significant 3 bits. In other words the > holes go : > > 76543S210 > > Where S is the sprocket hole and a digit is the bit number (bit

RE: Wanted, Papertape Reader for Archiving Tapes

2020-05-02 Thread David Collins via cctalk
I've pulled together details of the controller used with an HP2748 paper tape reader to dump a bunch of tapes from the HP Computer Museum's collection with the help of J. David Bryan. The details are at this link.. https://drive.google.com/open?id=1KaJkVgYzPusJN9tLf4IaSIa104fvLhUs The unit and

At&T Unix PC, Tape drive

2020-05-02 Thread emanuel stiebler via cctalk
Hi, during my move, I think I lost my tape drive, which was attached to my at&t unix pc (68000 based). Anybody knows of the top of their head, if I could read the tapes on any other machine? Was it anything "standard", or did they do their own at at&t? Cheers & thanks!

Re: DIY Paper Tape Punch - Mechanism diagram?

2020-05-02 Thread dwight via cctalk
If you go with punch pins, standard drill rod is not hard to get. It often comes in materials that can be easily heat hardened. Dwight From: cctalk on behalf of Torfinn Ingolfsen via cctalk Sent: Saturday, May 2, 2020 4:14 AM To: General Discussion: On-Topic an

Re: At&T Unix PC, Tape drive

2020-05-02 Thread Chuck Guzis via cctalk
On 5/2/20 6:21 AM, emanuel stiebler via cctalk wrote: > Hi, > during my move, I think I lost my tape drive, which was attached to my > at&t unix pc (68000 based). > Anybody knows of the top of their head, if I could read the tapes on any > other machine? Was it anything "standard", or did they do t

Re: At&T Unix PC, Tape drive

2020-05-02 Thread Patrick Finnegan via cctalk
On Sat, May 2, 2020, 11:32 Chuck Guzis via cctalk wrote: > On 5/2/20 6:21 AM, emanuel stiebler via cctalk wrote: > > Hi, > > during my move, I think I lost my tape drive, which was attached to my > > at&t unix pc (68000 based). > > Anybody knows of the top of their head, if I could read the tapes

Re: At&T Unix PC, Tape drive

2020-05-02 Thread Jon Elson via cctalk
On 05/02/2020 08:21 AM, emanuel stiebler via cctalk wrote: Hi, during my move, I think I lost my tape drive, which was attached to my at&t unix pc (68000 based). Anybody knows of the top of their head, if I could read the tapes on any other machine? Was it anything "standard", or did they do thei

Re: At&T Unix PC, Tape drive

2020-05-02 Thread Chuck Guzis via cctalk
On 5/2/20 8:52 AM, Patrick Finnegan via cctalk wrote: > I think a UNIX PC is a 3B1, not a 3B2. > Yes, the 7300/3B1 was officially the "Unix PC". My point was that the 3B2 notes say that particular system used the Cipher 525 floppytape and was 23 MB capacity. This agrees with what I know about

Re: At&T Unix PC, Tape drive

2020-05-02 Thread emanuel stiebler via cctalk
On 2020-05-02 11:32, Chuck Guzis via cctalk wrote: > On 5/2/20 6:21 AM, emanuel stiebler via cctalk wrote: >> Hi, >> during my move, I think I lost my tape drive, which was attached to my >> at&t unix pc (68000 based). >> Anybody knows of the top of their head, if I could read the tapes on any >> o

"scsi bus continuously busy"

2020-05-02 Thread Alan Perry via cctalk
Courtesy of a Raspberry Pi serving as the ND server, I am now able to load SunOS 3.5 over the network onto my 3/260 and it is now coming up into the OS. I am now seeing this error: >sc0 at vme24d16 20 vec 0x40 >sd0 at sc0 slave 0 >si0: sc_cmd: scsi bus continuously busy >sc0: resettin

Re: "scsi bus continuously busy"

2020-05-02 Thread Warner Losh via cctalk
On Sat, May 2, 2020 at 11:22 AM Alan Perry via cctalk wrote: > Courtesy of a Raspberry Pi serving as the ND server, I am now able to > load SunOS 3.5 over the network onto my 3/260 and it is now coming up > into the OS. I am now seeing this error: > > >sc0 at vme24d16 20 vec 0x40 > >sd0 at

Re: "scsi bus continuously busy"

2020-05-02 Thread Alan Perry via cctalk
On 5/2/20 10:44 AM, Warner Losh wrote: On Sat, May 2, 2020 at 11:22 AM Alan Perry via cctalk mailto:cctalk@classiccmp.org>> wrote: Courtesy of a Raspberry Pi serving as the ND server, I am now able to load SunOS 3.5 over the network onto my 3/260 and it is now coming up into t

Re: "scsi bus continuously busy"

2020-05-02 Thread Ryan Eisworth via cctalk
On May 2, 2020, at 12:22 PM, Alan Perry via cctalk wrote: > Are these boards picky about SCSI devices? I believe that the Sun-2 SCSI card only supports devices that support "Unit Attention".

Re: "scsi bus continuously busy"

2020-05-02 Thread Phil Blundell via cctalk
On Sat, May 02, 2020 at 10:22:02AM -0700, Alan Perry via cctalk wrote: > >sc0 at vme24d16 20 vec 0x40 > >sd0 at sc0 slave 0 > >si0: sc_cmd: scsi bus continuously busy > >sc0: resetting scsi bus > >sd1 at sc0 slave 1 Not that I know these particular devices, but is it at all possible one of

Re: DIY Paper Tape Punch - Mechanism diagram?

2020-05-02 Thread Hugh Pyle via cctalk
Hi Steve! I don't think Glowforge does DXF natively, but it should be easy enough to convert to SVG using e.g. Inkscape. I have a small paper-tape-pattern Python app that generates svg for this purpose - very much like your ptap2dxf, but less sophisticated :) https://github.com/hughpyle/ASR33/blo