[cctalk] Re: PDP 8a front panel hardware

2022-10-12 Thread Nigel Johnson Ham via cctalk
It is called a Tinnerman nut and they are available currently according to a google search cheers, Nigel Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU Amateur Radio, the origin of the open-source concept! Skype: TILBURY2591 On 2022-10-12 11:32, Ethan Dicks via cctalk wrote: On Tue,

[cctalk] Re: PDP 8a front panel hardware

2022-10-12 Thread Ethan Dicks via cctalk
On Wed, Oct 12, 2022 at 11:36 AM Paul Koning wrote: > > The clip nut is 10-32... > > That's the same clip nut used on H-960 racks. I saw some at the local > hardware store recently. An unusually well stocked hardware store, > admittedly, but clearly they are still current items. It's the

[cctalk] Re: PDP 8a front panel hardware

2022-10-12 Thread Paul Koning via cctalk
> On Oct 12, 2022, at 11:32 AM, Ethan Dicks via cctalk > wrote: > >> ... > > Yep. I have mine right here. My micrometer is elsewhere, but looks > like it's made from 1/8" steel flat stock (with anti-corrosion > plating), and has 3 bends (apex and two ends), a clip-nut for the > machine

[cctalk] Re: PDP 8a front panel hardware

2022-10-12 Thread Ethan Dicks via cctalk
On Tue, Oct 11, 2022 at 7:21 PM Vincent Slyngstad via cctalk wrote: > Bob Armstrong sent some pictures from Jack, which helped my find the > photos I knew were online somewhere: > https://forum.vcfed.org/index.php?threads/adding-a-programmers-console-to-a-pdp-8-a.75942/#post-921828 That's

[cctalk] Re: PDP 8a front panel hardware

2022-10-12 Thread Ethan Dicks via cctalk
On Tue, Oct 11, 2022 at 1:17 PM Vincent Slyngstad via cctalk wrote: > On 10/11/2022 10:08 AM, Tony Duell wrote: > > On Tue, Oct 11, 2022 at 6:04 PM Vincent Slyngstad via cctalk > > wrote: > > > >> Those are the ones. The 3D printed parts are essentially triangular > >> blocks that mount to the

[cctalk] Re: PDP 8a front panel hardware

2022-10-12 Thread geneb via cctalk
On Tue, 11 Oct 2022, Vincent Slyngstad via cctalk wrote: On 10/11/2022 10:49 AM, geneb via cctalk wrote: On Tue, 11 Oct 2022, Vincent Slyngstad via cctalk wrote: The DEC part is essentially bent bar stock, with a nut press-fit into it. Also easy to to do if you have the tooling. I know a lot

[cctalk] Re: PDP 8a front panel hardware

2022-10-12 Thread Dave Wade G4UGM via cctalk
> -Original Message- > From: Wayne S via cctalk > Sent: 11 October 2022 20:23 > To: General Discussion: On-Topic and Off-Topic Posts > Cc: Wayne S > Subject: [cctalk] Re: PDP 8a front panel hardware > > A local machine shop or even a college machine shop could

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Vincent Slyngstad via cctalk
On 10/11/2022 10:49 AM, geneb via cctalk wrote: On Tue, 11 Oct 2022, Vincent Slyngstad via cctalk wrote: The DEC part is essentially bent bar stock, with a nut press-fit into it. Also easy to to do if you have the tooling. I know a lot more folks with a 3D printer than I do the folks with

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Adrian Stoness via cctalk
https://www.yeggi.com/q/pdp+8/

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread geneb via cctalk
On Tue, 11 Oct 2022, Vincent Slyngstad via cctalk wrote: On 10/11/2022 12:37 PM, geneb via cctalk wrote: Anyway, the original is bent bar stock, with notching near the apex, and a nut press-fit/spot welded where I've drawn an indent.  I've drawn it as a triangular plastic block in an effort

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Vincent Slyngstad via cctalk
On 10/11/2022 12:27 PM, Tony Duell via cctalk wrote: I reckon you could make a couple (i.e. what you need for one machine) from steel or brass in an hour using only hand tools. The only things you'd need that are not in every reasonable toolkit are a 6-32 UNC tap and whatever the correct tapping

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Vincent Slyngstad via cctalk
On 10/11/2022 12:37 PM, geneb via cctalk wrote: Anyway, the original is bent bar stock, with notching near the apex, and a nut press-fit/spot welded where I've drawn an indent.  I've drawn it as a triangular plastic block in an effort to make it more structural. I wonder if a heat-set insert

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread geneb via cctalk
On Tue, 11 Oct 2022, Vincent Slyngstad via cctalk wrote: On 10/11/2022 10:48 AM, geneb via cctalk wrote: If someone wants to provide me with a drawing, I'd be happy to design a 3D model of the part and print a few of them for testing. Here's a pointer to mine:

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Wayne S via cctalk
Definitely! Easy-peasey. Sent from my iPhone > On Oct 11, 2022, at 12:28, Tony Duell wrote: > > On Tue, Oct 11, 2022 at 8:23 PM Wayne S via cctalk > wrote: >> >> A local machine shop or even a college machine shop could knock out 10 of >> those in an hour probably in steel. It’s worth

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Tony Duell via cctalk
On Tue, Oct 11, 2022 at 8:23 PM Wayne S via cctalk wrote: > > A local machine shop or even a college machine shop could knock out 10 of > those in an hour probably in steel. It’s worth investigating i think. I reckon you could make a couple (i.e. what you need for one machine) from steel or

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Wayne S via cctalk
A local machine shop or even a college machine shop could knock out 10 of those in an hour probably in steel. It’s worth investigating i think. Sent from my iPhone > On Oct 11, 2022, at 11:17, Vincent Slyngstad via cctalk > wrote: > > On 10/11/2022 10:48 AM, geneb via cctalk wrote: >> If

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Vincent Slyngstad via cctalk
On 10/11/2022 10:48 AM, geneb via cctalk wrote: If someone wants to provide me with a drawing, I'd be happy to design a 3D model of the part and print a few of them for testing. Here's a pointer to mine: https://so-much-stuff.com/pdp8/cad/3d.php

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread geneb via cctalk
On Tue, 11 Oct 2022, Vincent Slyngstad via cctalk wrote: On 10/11/2022 10:08 AM, Tony Duell wrote: On Tue, Oct 11, 2022 at 6:04 PM Vincent Slyngstad via cctalk wrote: Those are the ones. The 3D printed parts are essentially triangular blocks that mount to the rack and have a drilled and

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread geneb via cctalk
On Tue, 11 Oct 2022, Tony Duell via cctalk wrote: On Tue, Oct 11, 2022 at 6:12 PM Sellam Abraham via cctalk wrote: Not everyone has a fully tooled machine shop, perhaps? And not everyone has a 3D printer. Moreover, a small lathe/mill capable of making that sorr of part is probably cheaper

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread ben via cctalk
On 2022-10-11 11:14 a.m., Tony Duell via cctalk wrote: On Tue, Oct 11, 2022 at 6:12 PM Sellam Abraham via cctalk wrote: Not everyone has a fully tooled machine shop, perhaps? And not everyone has a 3D printer. Moreover, a small lathe/mill capable of making that sorr of part is probably

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Vincent Slyngstad via cctalk
On 10/11/2022 10:08 AM, Tony Duell wrote: On Tue, Oct 11, 2022 at 6:04 PM Vincent Slyngstad via cctalk wrote: Those are the ones. The 3D printed parts are essentially triangular blocks that mount to the rack and have a drilled and tapped hole for the recessed Allen screw. Why on earth

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Tony Duell via cctalk
On Tue, Oct 11, 2022 at 6:12 PM Sellam Abraham via cctalk wrote: > > Not everyone has a fully tooled machine shop, perhaps? And not everyone has a 3D printer. Moreover, a small lathe/mill capable of making that sorr of part is probably cheaper than a 3D printer and will last a lot longer.

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Sellam Abraham via cctalk
Not everyone has a fully tooled machine shop, perhaps? On Tue, Oct 11, 2022 at 10:09 AM Tony Duell via cctalk < cctalk@classiccmp.org> wrote: > On Tue, Oct 11, 2022 at 6:04 PM Vincent Slyngstad via cctalk > wrote: > > > Those are the ones. The 3D printed parts are essentially triangular > >

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Tony Duell via cctalk
On Tue, Oct 11, 2022 at 6:04 PM Vincent Slyngstad via cctalk wrote: > Those are the ones. The 3D printed parts are essentially triangular > blocks that mount to the rack and have a drilled and tapped hole for the > recessed Allen screw. Why on earth would you 3D print something like that?

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Vincent Slyngstad via cctalk
On 10/11/2022 8:17 AM, Robert Armstrong via cctalk wrote: Bill Degnan mbilldeg...@gmail.com> wrote: Is there a 3D print gcode for the hardware that connects a PDP8a front panel to the chassis? Assuming you're talking about the KC8-A (the panel with the push buttons and 7 segment displays)

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Vincent Slyngstad via cctalk
On 10/11/2022 8:17 AM, Robert Armstrong via cctalk wrote: Bill Degnan mbilldeg...@gmail.com> wrote: Is there a 3D print gcode for the hardware that connects a PDP8a front panel to the chassis? Assuming you're talking about the KC8-A (the panel with the push buttons and 7 segment displays)

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Robert Armstrong via cctalk
>Tony Duell >Is that the 3U (5.25" high) one? Yes.. >If so, there's a metal sleeve that is screwed in the rack. Oh yeah, that would make sense. There was a QBUS chassis that worked the same way. Was that a BA11-N? I forget - too many years have gone by :) Bob

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Tony Duell via cctalk
On Tue, Oct 11, 2022 at 4:34 PM Robert Armstrong wrote: > Don't know what the BA11-L (that's the short box for the 11/04) did. I > don't think it had slides, but I'm not sure. > Is that the 3U (5.25" high) one? If so, there's a metal sleeve that is screwed in the rack. The entire chasis

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Robert Armstrong via cctalk
> Tony Duell >I wonder if that's because on the 11/04 and 11/34 the boards go in >from the top of the box whereas on the 8/a the boards go in from the >front. Therefore you have to remove the frontpanel to insert/remove >boards on the 8/a but you don't on the 11's. The 11's panel is rarely

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Tony Duell via cctalk
On Tue, Oct 11, 2022 at 4:17 PM Robert Armstrong via cctalk wrote: >Annoyingly the PDP-11/04 and 34, which had a panel that was mechanically > nearly identical, used an entirely differently mounting scheme, so there's no > help there. > I wonder if that's because on the 11/04 and 11/34

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Bill Degnan via cctalk
Bob Yup that's the one I have, thanks. At least I am not alone. I bet this topic has come up in the past here. Bill On Tue, Oct 11, 2022 at 11:17 AM Robert Armstrong via cctalk < cctalk@classiccmp.org> wrote: > >Bill Degnan mbilldeg...@gmail.com> wrote: > >Is there a 3D print gcode for the

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Robert Armstrong via cctalk
>Bill Degnan mbilldeg...@gmail.com> wrote: >Is there a 3D print gcode for the hardware that connects a PDP8a front >panel to the chassis? Assuming you're talking about the KC8-A (the panel with the push buttons and 7 segment displays) then I think there were at least two versions. The older

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Vincent Slyngstad via cctalk
On 10/11/2022 6:16 AM, Bill Degnan via cctalk wrote: I have a pretty good 3d printer, I.can at least try. I imagine the standard front panel cover clips should be easy enough, but the pdp8a needs something stronger with screws and bolts, right? I need to check the enclosure hardware documents

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Bill Degnan via cctalk
I have a pretty good 3d printer, I.can at least try. I imagine the standard front panel cover clips should be easy enough, but the pdp8a needs something stronger with screws and bolts, right? I need to check the enclosure hardware documents On Tue, Oct 11, 2022, 2:37 AM Vincent Slyngstad via

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Vincent Slyngstad via cctalk
On 10/10/2022 11:00 PM, Adrian Stoness via cctalk wrote: theres 3d print models made of them theres the orig design with does not prit very well and a modified design thats better list forget where might be buried on this site? https://so-much-stuff.com/pdp8/repair/repair.php I tried to do one

[cctalk] Re: PDP 8a front panel hardware

2022-10-11 Thread Adrian Stoness via cctalk
theres 3d print models made of them theres the orig design with does not prit very well and a modified design thats better list forget where might be buried on this site? https://so-much-stuff.com/pdp8/repair/repair.php On Mon, Oct 10, 2022 at 7:53 PM Bill Degnan via cctalk <