15 Oct
2024
15 Oct
'24
1:11 p.m.
Next try …
https://flic.kr/s/aHBqjBMV48
A.
Am 15.10.2024 um 15:28 schrieb Milo Velimirović
<milovelimirovic(a)gmail.com>om>:
The photos didn’t make it through. I’ve got a pdp11/05 that I’d like to restore and new
PSUs make total sense to me. Please send photos directly.
Thanks!
—Milo
On Oct 12, 2024, at 6:35 AM, hupfadekroua via
cctalk <cctalk(a)classiccmp.org> wrote:
Hi all,
Once I visited LCM some years ago I was allowed to visit their repair laboratory.
I was introduced to an approach to substitute DEC BA11 PSU modules by modern DC-DC
converter modules.
They used a 3D printed plastic chassis to mount the converter, electrolytic as well as
the connectors to be fitted into the psu chassis of a BA11 enclosure, quite nice.
See photo attached …
Does someone knows if this stl or design has been saved while or after LCMs closure?
Best
Andreas
15 Oct
15 Oct
1:50 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
Any thoughts on wiring harnesses and connectors to mate to DEC backplanes?
Thanks!
—Milo
On Oct 15, 2024, at 8:11 AM, hupfadekroua via cctalk
<cctalk(a)classiccmp.org> wrote:
Next try …
https://flic.kr/s/aHBqjBMV48
A.
> Am 15.10.2024 um 15:28 schrieb Milo Velimirović <milovelimirovic(a)gmail.com>om>:
>
> The photos didn’t make it through. I’ve got a pdp11/05 that I’d like to restore and
new PSUs make total sense to me. Please send photos directly.
>
> Thanks!
> —Milo
>
>> On Oct 12, 2024, at 6:35 AM, hupfadekroua via cctalk
<cctalk(a)classiccmp.org> wrote:
>>
>> Hi all,
>>
>> Once I visited LCM some years ago I was allowed to visit their repair
laboratory.
>>
>> I was introduced to an approach to substitute DEC BA11 PSU modules by modern
DC-DC converter modules.
>>
>> They used a 3D printed plastic chassis to mount the converter, electrolytic as
well as the connectors to be fitted into the psu chassis of a BA11 enclosure, quite nice.
>>
>> See photo attached …
>>
>> Does someone knows if this stl or design has been saved while or after LCMs
closure?
>>
>> Best
>>
>> Andreas
>
4:19 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
Great fix!
I'd like to suggest that anyone distributing 3D models for 3D printing,
please include a STEP file. STLs are mesh based (at least that's how they
load into Fusion 360) and by default you can't align objects to them or
perform other standard operations. I include STEP, STL and F3D (Fusion
source) file formats in all my posts on Thingiverse, Printables, etc.
because my goal is to let people modify them as they need.
=]
--
Anders Nelson
www.andersknelson.com
On Tue, Oct 15, 2024 at 9:20 AM hupfadekroua via cctalk <
cctalk(a)classiccmp.org> wrote:
Next try …
https://flic.kr/s/aHBqjBMV48
A.
Am 15.10.2024 um 15:28 schrieb Milo Velimirović
<
milovelimirovic(a)gmail.com>gt;:
The photos didn’t make it through. I’ve got a pdp11/05 that I’d like to
restore and new PSUs make total sense to me. Please send photos directly.
Thanks!
—Milo
> On Oct 12, 2024, at 6:35 AM, hupfadekroua via cctalk <
cctalk(a)classiccmp.org> wrote:
>
> Hi all,
>
> Once I visited LCM some years ago I was allowed to visit their repair
laboratory.
>
> I was introduced to an approach to substitute DEC BA11 PSU modules by
modern DC-DC converter modules.
>
> They used a 3D printed plastic chassis to mount the converter,
electrolytic as well as the connectors to be fitted into the psu chassis of
a BA11 enclosure, quite nice.
>
> See photo attached …
>
> Does someone knows if this stl or design has been saved while or after
LCMs closure?
Best
Andreas
5:22 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
For the substitution of the H732 psus of their KI10 Cabinets LCM used
execsys xlc devices.
A quite interesting since configurable approach, but not cheap.
On Tue, Oct 15, 2024 at 7:19 PM Anders Nelson <anders.k.nelson(a)gmail.com>
wrote:
Great fix!
I'd like to suggest that anyone distributing 3D models for 3D printing,
please include a STEP file. STLs are mesh based (at least that's how they
load into Fusion 360) and by default you can't align objects to them or
perform other standard operations. I include STEP, STL and F3D (Fusion
source) file formats in all my posts on Thingiverse, Printables, etc.
because my goal is to let people modify them as they need.
=]
--
Anders Nelson
www.andersknelson.com
On Tue, Oct 15, 2024 at 9:20 AM hupfadekroua via cctalk <
cctalk(a)classiccmp.org> wrote:
Next try …
https://flic.kr/s/aHBqjBMV48
A.
Am 15.10.2024 um 15:28 schrieb Milo Velimirović
<
milovelimirovic(a)gmail.com>gt;:
The photos didn’t make it through. I’ve got a pdp11/05 that I’d like
to restore and new PSUs make total sense to me. Please send photos directly.
Thanks!
—Milo
> On Oct 12, 2024, at 6:35 AM, hupfadekroua via cctalk <
cctalk(a)classiccmp.org> wrote:
>
> Hi all,
>
> Once I visited LCM some years ago I was allowed to visit their repair
laboratory.
>
> I was introduced to an approach to substitute DEC BA11 PSU modules by
modern DC-DC converter modules.
>
> They used a 3D printed plastic chassis to mount the converter,
electrolytic as well as the connectors to be fitted into the psu chassis of
a BA11 enclosure, quite nice.
>
> See photo attached …
>
> Does someone knows if this stl or design has been saved while or after
LCMs closure?
Best
Andreas
8:08 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
On Tue, Oct 15, 2024 at 12:25 PM Anders Nelson via cctalk
<cctalk(a)classiccmp.org> wrote:
I'd like to suggest that anyone distributing 3D
models for 3D printing,
please include a STEP file. STLs are mesh based (at least that's how they
load into Fusion 360) and by default you can't align objects to them or
perform other standard operations. I include STEP, STL and F3D (Fusion
source) file formats in all my posts on Thingiverse, Printables, etc.
because my goal is to let people modify them as they need.
If you are using a tool that generates STEP files that sounds great
but I do all of my design in OpenSCAD so you get STLs from me. Any
STEP files would have to come out of a converter.
I do recommend if you use OpenSCAD, please publish the source files
with the STL.
-ethan
8:36 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
On Oct 15, 2024, at 4:08 PM, Ethan Dicks via cctalk
<cctalk(a)classiccmp.org> wrote:
On Tue, Oct 15, 2024 at 12:25 PM Anders Nelson via cctalk
<cctalk(a)classiccmp.org> wrote:
"The nice thing about standards is that there are so many to choose from" -
Andrew Tanenbaum.
That applies in spades to 3d model files; I've been amazed at the number of formats
FreeCAD3d knows about and tries to import (mostly quite poorly).
paul
I'd like to suggest that anyone distributing
3D models for 3D printing,
please include a STEP file. STLs are mesh based (at least that's how they
load into Fusion 360) and by default you can't align objects to them or
perform other standard operations. I include STEP, STL and F3D (Fusion
source) file formats in all my posts on Thingiverse, Printables, etc.
because my goal is to let people modify them as they need.
If you are using a tool that generates STEP files that sounds great
but I do all of my design in OpenSCAD so you get STLs from me. Any
STEP files would have to come out of a converter.
I do recommend if you use OpenSCAD, please publish the source files
with the STL.
-ethan 
9:16 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
On Tue, 15 Oct 2024, Paul Koning via cctalk wrote:
"The nice thing about standards is that there are
so many to choose from" - Andrew Tanenbaum.
George Morrow said,
"I believe in standards. Everyone should have one."
About 45 years ago, he and Howard Fullmer tried to standardize the
S100 bus.
There seemed to have been as little written about Howard's death as the
void around Ward christensen's death.
9:45 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
On Tue, Oct 15, 2024 at 2:25 PM Fred Cisin via cctalk <cctalk(a)classiccmp.org>
wrote:
On Tue, 15 Oct 2024, Paul Koning via cctalk wrote:
Understandable, considering he eventually turned his back on the industry
and never looked back.
Sellam
"The nice thing about standards is that
there are so many to choose
from" - Andrew Tanenbaum.
George Morrow said,
"I believe in standards. Everyone should have one."
About 45 years ago, he and Howard Fullmer tried to standardize the
S100 bus.
There seemed to have been as little written about Howard's death as the
void around Ward christensen's death.
9:54 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
> George Morrow said,
> "I believe in standards. Everyone should have one."
>
> About 45 years ago, he and Howard Fullmer tried to standardize the
> S100 bus.
>
> There seemed to have been as little written about Howard's death as the
> void around Ward christensen's death.
On Tue, 15 Oct 2024, Sellam Abraham via cctalk wrote:
Understandable, considering he eventually turned his
back on the industry
and never looked back.
BTW, THANK YOU for getting George's widow to relinquish the rights to
"Quotations Of Chairman Morrow" , so that it is available to all.
16 Oct
16 Oct
1:55 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
On Tue, Oct 15, 2024, 3:00 PM Fred Cisin via cctalk <cctalk(a)classiccmp.org
wrote:
BTW, THANK YOU for getting George's widow to relinquish the rights to
"Quotations Of Chairman Morrow" , so that it is available to all.
When did I do this?
BTW, I recently came across the copy that I borrowed from Michael Swaine
(from which I transcribed the book into a file many years ago) which I
somehow failed to return way back when. The book is now back in his hands
and he's doing well from what he tells me.
Sellam
7:03 a.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
On Tue, 15 Oct 2024, Ethan Dicks wrote:
On Tue, Oct 15, 2024 at 12:25?PM Anders Nelson via
cctalk
<cctalk(a)classiccmp.org> wrote:
This is what I wanted to write, too.
I don't know STEP files, and while I can import STL files into the slicer,
I can't modify them, just position and scale.
So yes, *if* someone publishes 3D models e.g. on Thingiverse, _include_
then sources! OpenSCAD is a great tool.
Christian
I'd like to suggest that anyone distributing
3D models for 3D printing,
please include a STEP file. STLs are mesh based (at least that's how they
If
you are using a tool that generates STEP files that sounds great
but I do all of my design in OpenSCAD so you get STLs from me. Any
STEP files would have to come out of a converter.
I do recommend if you use OpenSCAD, please publish the source files
with the STL. 
9:30 p.m.
New subject: LCM STL Files for 3D Printing of DEC PSU Chassis
I’ve needed to modify STL files so I import them into TinkerCAD, an online
basic CAD environment, then export the STL out for printing.
//m
On Wed, 16 Oct 2024 at 6:03 pm, Christian Corti via cctalk <
cctalk(a)classiccmp.org> wrote:
On Tue, 15 Oct 2024, Ethan Dicks wrote:
On Tue, Oct 15, 2024 at 12:25?PM Anders Nelson
via cctalk
<cctalk(a)classiccmp.org> wrote:
> I'd like to suggest that anyone distributing 3D models for 3D printing,
> please include a STEP file. STLs are mesh based (at least that's how
they
If you are using a tool that generates STEP files
that sounds great
but I do all of my design in OpenSCAD so you get STLs from me. Any
STEP files would have to come out of a converter.
I do recommend if you use OpenSCAD, please publish the source files
with the STL.
This is what I wanted to write, too.
I don't know STEP files, and while I can import STL files into the slicer,
I can't modify them, just position and scale.
So yes, *if* someone publishes 3D models e.g. on Thingiverse, _include_
then sources! OpenSCAD is a great tool.
Christian
36
days inactive
37
days old
11 comments
9 participants
participants (9)
-
Anders Nelson -
Christian Corti -
Ethan Dicks -
Fred Cisin -
hupfadekroua -
Michael Mulhern -
Milo Velimirović -
Paul Koning -
Sellam Abraham