QL with a very unusual expansion board

Discussions for anything QL related up for Auction.
Post Reply
User avatar
Andrew
Aurora
Posts: 836
Joined: Tue Jul 17, 2018 9:10 pm

QL with a very unusual expansion board

Post by Andrew »

QL with a very unusual expansion board on Ebay
I presume this is some custom industrial expansion board - Does anyone knows what this might be?
s-l1600.jpg
2.jpg
3.jpg
4.jpg


User avatar
Pr0f
QL Wafer Drive
Posts: 1379
Joined: Thu Oct 12, 2017 9:54 am

Re: QL with a very unusual expansion board

Post by Pr0f »

My guess would be stepper motor controller and driver...


Martin_Head
Aurora
Posts: 876
Joined: Tue Dec 17, 2013 1:17 pm

Re: QL with a very unusual expansion board

Post by Martin_Head »

The screen shot says it's an engineering company.

Could it be a IEEE interface for driving things like milling machines.


User avatar
dilwyn
Mr QL
Posts: 2816
Joined: Wed Dec 01, 2010 10:39 pm

Re: QL with a very unusual expansion board

Post by dilwyn »

I asked my son, as he works with modern engineering machining systems. Not being a QLer, he couldn't identify it specifically, but agrees with comments made about what it might be. He says that there is still a company called Hurn Brothers (engineering) Ltd in Dereham, Norfolk UK, although that might be a coincidence of names.

CST made a SCSI interface for QL back in the 1980s, though this doesn't look like the pictures I've seen of those.

A SCSI interface would commonly have a 50 pin connector.

Hope whoever won this auction on eBay is on here and can give us the lowdown on what it was!


RWAP
RWAP Master
Posts: 2861
Joined: Sun Nov 28, 2010 4:51 pm
Location: Stone, United Kingdom
Contact:

Re: QL with a very unusual expansion board

Post by RWAP »

Would be worth contacting the engineering company to see if they have the software still (or even any QLs still in use!)


User avatar
Ruptor
Gold Card
Posts: 420
Joined: Fri Dec 20, 2019 2:23 pm
Location: London

Re: QL with a very unusual expansion board

Post by Ruptor »

Andrew wrote: Mon Jun 24, 2024 9:54 amI presume this is some custom industrial expansion board - Does anyone knows what this might be?
Probably servo motor control as steppers were not so prevalent back then when CNC were coming in.
https://united-kingdom.exportersindia.com/stebon-ltd/
https://www.daxautomation.co.uk/part/pa ... d40/338615


User avatar
tofro
Font of All Knowledge
Posts: 2736
Joined: Sun Feb 13, 2011 10:53 pm
Location: SW Germany

Re: QL with a very unusual expansion board

Post by tofro »

I think the question is mainly about the QL expansion board.

Without the two obviously missing chips, what remains is the EPROM and a bit of address decoding, and it's nearly impossible to tell what might have been in the two empty sockets. But they somehow yell "UART" at me. In the mid-1980s, serial comms was ubiquitous in controlling machinery. From the pin count, the missing chips could very well be Intel 8251 UART chips.


ʎɐqǝ ɯoɹɟ ǝq oʇ ƃuᴉoƃ ʇou sᴉ pɹɐoqʎǝʞ ʇxǝu ʎɯ 'ɹɐǝp ɥO
Wicksy
ROM Dongle
Posts: 8
Joined: Sat Apr 06, 2024 3:32 pm

Re: QL with a very unusual expansion board

Post by Wicksy »

It does look like the drive of the end of a Bridgeport NC machine, after the plate fabrication with a bearing.

Possible the QL is being used as a digital readout rather than to control the drive / servo?

I worked on a Bridgeport mill in 2013, that ran off a floppy disc loading the required routine. I used it manually though.


Post Reply