Today I built ...

on-topic acorn-related discussions not covered by the other forums
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gslug
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Re: Today I built ...

Post by gslug » Sun Jun 21, 2020 1:21 am

Because I hate soldering cable mount DIN connectors, I made some Econet socket boxes.
IMG_20200621_004955.jpg
Next to 3D print the actual box, and see if everything lines up.

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flaxcottage
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Re: Today I built ...

Post by flaxcottage » Sun Jun 21, 2020 7:59 am

Nicely done. =D>
- John

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8271
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Re: Today I built ...

Post by 8271 » Sun Jun 21, 2020 9:24 am

Because I hate soldering cable mount DIN connectors, I made some Econet socket boxes.
IMG_20200621_004955.jpg
Next to 3D print the actual box, and see if everything lines up.
Very interested if you are making a batch up as I hate soldering socket boxes too.....
Serial computer hoarder
6 x BBC-B, 4 x Master128, Master Viglen, Master Domesday, A310, A4, A4000, RiscPC700, RiscOS_Pi, Econet & Ethernet

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gslug
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Re: Today I built ...

Post by gslug » Sun Jun 21, 2020 11:01 am

flaxcottage wrote:
Sun Jun 21, 2020 7:59 am
Nicely done. =D>
Thanks!
8271 wrote:
Sun Jun 21, 2020 9:24 am
Because I hate soldering cable mount DIN connectors, I made some Econet socket boxes.
IMG_20200621_004955.jpg
Next to 3D print the actual box, and see if everything lines up.
Very interested if you are making a batch up as I hate soldering socket boxes too.....
I didn't intend to, but I can add some more boards to my next PCB order in a few weeks time, or I could just send you the gerbers and part numbers for the connectors.

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IanS
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Re: Today I built ...

Post by IanS » Sun Jun 21, 2020 12:01 pm

gslug wrote:
Sun Jun 21, 2020 1:21 am
Because I hate soldering cable mount DIN connectors, I made some Econet socket boxes.IMG_20200621_004955.jpg
Next to 3D print the actual box, and see if everything lines up.
Are they RJ-45 connectors?
How are they wired? I've been working to the original Phil Blundell "standard" http://www.beebmaster.co.uk/Econet/PBSockets.html
e.g.
viewtopic.php?p=157254#p157254
viewtopic.php?p=159071#p159071

Got the part number of the 5-pin DIN sockets (they look expensive)

I've got more t-Piece PCBs, I must make them up and list them for sale. viewtopic.php?p=216063#p216063

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8271
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Re: Today I built ...

Post by 8271 » Sun Jun 21, 2020 12:55 pm

I've got more t-Piece PCBs, I must make them up and list them for sale. viewtopic.php?p=216063#p216063
I am definitely interested if you are making more (at least 5 if you have them!)
Serial computer hoarder
6 x BBC-B, 4 x Master128, Master Viglen, Master Domesday, A310, A4, A4000, RiscPC700, RiscOS_Pi, Econet & Ethernet

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gslug
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Re: Today I built ...

Post by gslug » Sun Jun 21, 2020 1:36 pm

IanS wrote:
Sun Jun 21, 2020 12:01 pm
gslug wrote:
Sun Jun 21, 2020 1:21 am
Because I hate soldering cable mount DIN connectors, I made some Econet socket boxes.IMG_20200621_004955.jpg
Next to 3D print the actual box, and see if everything lines up.
Are they RJ-45 connectors?
How are they wired? I've been working to the original Phil Blundell "standard" http://www.beebmaster.co.uk/Econet/PBSockets.html
e.g.
viewtopic.php?p=157254#p157254
viewtopic.php?p=159071#p159071

Got the part number of the 5-pin DIN sockets (they look expensive)

I've got more t-Piece PCBs, I must make them up and list them for sale. viewtopic.php?p=216063#p216063
They are indeed RJ-45 connectors. I wasn't aware of the "standard", so did my own thing:

Code: Select all

DIN 5 pin        RJ45 pin
1                8
2                3,4,5,6
3                2
4                7
5                1
If I'd known about the standard, I would have used it, though if I'd known about your T piece PCB I would probably have brought some of those instead.

The DIN connectors are Farnell part number: 71252-050/0800
They were £2.98 each for 1 to 10 a week ago, and are now £3.56!

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tricky
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Re: Today I built ...

Post by tricky » Sun Jun 21, 2020 6:55 pm

A second "BBC Arcade Stick" to go with the first one.
Attachments
BeebJoysticks2.jpg

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gslug
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Re: Today I built ...

Post by gslug » Sun Jun 21, 2020 8:26 pm

tricky wrote:
Sun Jun 21, 2020 6:55 pm
A second "BBC Arcade Stick" to go with the first one.
That looks great!

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gslug
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Re: Today I built ...

Post by gslug » Tue Jun 23, 2020 7:56 pm

A case for my socket box.If I ever order any more PCBs, I'll adapt them to the standard wiring and move the RJ45 connectors so they are flush with the case. The current board was designed for a larger off the shelf case, but I decided 3D printing was preferable to cutting the openings.
IMG_20200623_180701.jpg

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8271
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Re: Today I built ...

Post by 8271 » Sat Jun 27, 2020 10:32 am

case for my socket box.If I ever order any more PCBs, I'll adapt them to the standard wiring and move the RJ45 connectors so they are flush with the case. The current board was designed for a larger off the shelf case, but I decided 3D printing was preferable to cutting the openings.
Very nice! I wish I could make things as elegant....
Serial computer hoarder
6 x BBC-B, 4 x Master128, Master Viglen, Master Domesday, A310, A4, A4000, RiscPC700, RiscOS_Pi, Econet & Ethernet

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gslug
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Re: Today I built ...

Post by gslug » Sat Jun 27, 2020 3:28 pm

8271 wrote:
Sat Jun 27, 2020 10:32 am
case for my socket box.If I ever order any more PCBs, I'll adapt them to the standard wiring and move the RJ45 connectors so they are flush with the case. The current board was designed for a larger off the shelf case, but I decided 3D printing was preferable to cutting the openings.
Very nice! I wish I could make things as elegant....
Haha. That's the second attempt. The first had the holes for the DIN sockets offset slightly and was too tight to fit the PCB. I'm now on the third version, with screw holes as the clips of V2 liked to unclip when removing a DIN plug.

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Yrrah2
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Re: Today I built ...

Post by Yrrah2 » Tue Jun 30, 2020 12:42 pm

I'm afraid to show my soldering skills so my son and I started a Lego project. (Hope I'm in the right forum for this :? )
We are trying to build a little buggy, like the Fischertechnic one.
The goal is to make the buggy follow a white or black line.
(what a little summer vacation can bring.....)

Version 1
buggy V1.JPG
Later my son found a smaller gear option.
So version 2 was made
buggy V2.JPG
And then we gave it first a spin.
https://vimeo.com/433959834/c4a8cdbc81

Cheers
Happy with my BBC Master
www.mybbcmaster.nl

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flaxcottage
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Re: Today I built ...

Post by flaxcottage » Tue Jun 30, 2020 1:18 pm

Needs a Pi on board. :D
- John

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Yrrah2
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Re: Today I built ...

Post by Yrrah2 » Tue Jun 30, 2020 1:20 pm

flaxcottage wrote:
Tue Jun 30, 2020 1:18 pm
Needs a Pi on board. :D
:D If I have one, I can put one on top :wink:
Happy with my BBC Master
www.mybbcmaster.nl

Kazzie
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Re: Today I built ...

Post by Kazzie » Wed Jul 08, 2020 7:31 pm

Here's my latest finished project:
IMG_20200707_1446408.jpg
I was given it to try to repair, but it had a terminal fault with one of the custom chips (RAM enable signal permanently on, even when accessing ROM), so the case has been repurposed into a birthday present:
IMG_20200707_1443178.jpg
A Raspberry Pi 3B has been fitted inside, with 5V wired through the case's power switch. The pause button has been wired up to the Pi's reset header.
IMG_20200707_1446459.jpg
Two USB ports have been fitted in the cartridge slot area, which are occupied by dongles for a gamepad and keyboard. A further two are available at the front where the controller ports were. My wife's taken care of the software side of things, installing RetroPi on it and configuring all the emulators. 8)
BBC Model B 32k issue 7, Sidewise ROM board with 16K RAM
Archimedes 420/1 upgraded to 4MB RAM, ZIDEFS with 512MB CF card
Acorn System 1 home-made replica

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flaxcottage
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Re: Today I built ...

Post by flaxcottage » Wed Jul 08, 2020 10:38 pm

An excellent build. =D>

Sticky tape and wood? too. :lol:
- John

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Kazzie
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Re: Today I built ...

Post by Kazzie » Thu Jul 09, 2020 3:16 pm

flaxcottage wrote:
Wed Jul 08, 2020 10:38 pm
An excellent build. =D>

Sticky tape and wood? too. :lol:
Not everyone has a 3D printer, you know. ;)

The two front USB ports were set together in rubber, for mounting on a PC back panel or similar. I used them as-is for the ports in the cartridge slot, but the spacing was too small to line up neatly with the joystick port holes. I sawed through the blank rubber between the ports, and used epoxy to glue them to two wooden splints at the new spacing. I also used several offcuts of wood as vertical spacers to get them to the right height, all glued together, before using the original mounting holes of the USB ports to secure it at the front of the case.

The black vinyl tape is cosmetic, so that there's nothing but black to see through the joystick ports.

I forgot to mention that there's a micro-USB power socket mounted in the hole where the DC jack went, and the RF output hole was dremelled out to fit the HDMI socket extender.
IMG_20200516_1827341.jpg
BBC Model B 32k issue 7, Sidewise ROM board with 16K RAM
Archimedes 420/1 upgraded to 4MB RAM, ZIDEFS with 512MB CF card
Acorn System 1 home-made replica

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