MCR Interconnects

[guddler]

[ukvac] MCR Interconnects
I know these can be bought from Bob Roberts. SCSI 1 cables that i
beleive you just let the 25th pin hang off the edge.

But does anyone have access to the kit to make these up? I could use
about 40 of them i think. I'd need to count them up but it wouldn't
surprise me if it was roughly that kind of amount!

http://www.homearcade.org/BBBB/mcr.html

Ta,
Martin.

 

[david_orton_2000]

[ukvac] Re: MCR Interconnects
Martin,

I just use a vice to squash the IDC connectors on.
There is a tool of course, however it's only worth it
if you need it all the time.
Could buy a reel of IDC cable to seeing as you need loads?

Aircon=False; Fans=True

Cheers,
Dave.

 

[guddler]

Re: [ukvac] Re: MCR Interconnects
Good point!

Since i found the connector info for that post i'll see if i can grab
some connectors and cables next time i order...

Ta,
Martin.

> I just use a vice to squash the IDC connectors on.
> There is a tool of course, however it's only worth it
> if you need it all the time.
> Could buy a reel of IDC cable to seeing as you need loads?

 

[Guests]

[ukvac] Re: MCR Interconnects
Yes... Much the same here.... Use a vice or a tool that goes in a
vice. The propper IDC tooling is expensive. I have a roll of 50
way cable kicking about somewhere.

Cheers, Colin

 

[Guests]

[ukvac] Re: MCR Interconnects
Personally, What I would do is to buy a pre built scsi cable, with as
many connectors on it as cheaply as possible....

Go for something like the 8 way one.

http://www.homestead.co.uk/productcategorydetail.aspx?categoryid=51199

Each conector is spaced 6 inches apart..... Now all you have to do is
crimp some extra connectors onto the cable to give you the desired 4
inches or whatever then trim the cables.

The beauty is that having half the cable crimped up already reduces the
screw up margin by 50%

Also why not go the full hog and fit 50way sockets to the boards (with
the extra row of pins and the end pins timmed back ?

Cheers, Col

> > I just use a vice to squash the IDC connectors on.
> > There is a tool of course, however it's only worth it
> > if you need it all the time.
> > Could buy a reel of IDC cable to seeing as you need loads?

 

[guddler]

Re: [ukvac] Re: MCR Interconnects
WOW! These things ain't cheap are they??

)

I started off thinking those 8 way ones were quite a lot at £10 each.
£18 each by the time you've added the 8 extra connectors needed to get
the interconnects down to within the spec (assuming 3" would be long
enough, but i think that's much longer than the original ones). That
would give you 8 interconnects. So, two lots of those would do you 3x
MCR boardsets for £36.Mmm. That's doable when you break it down like
that. £12 a boardset.

You price up the cable (£25.45 per 30m roll) + the connectors at £0.99
each (and that's the >25 rate) and all of a sudden you can see why
they're so much!

So, to do a single MCR boardset from scratch (5 ribbon connectors)
you'd be looking at £10 in connectors + the cable if you made it up
yourself. Theres probably really not much in it between making it from
scratch and butchering a pre made one.

Then again. Looking, CPC have the above 8 way cables for a fiver +
VAT. That's quite a difference. Will have to do some better maths this
evening when i'm not meant to be working.

Maybe put out some requests for quotes like Bob Roberts originally did.

Martin.

 

[guddler]

Re: [ukvac] Re: MCR Interconnects
Okay, let's stick me neck out and ask who'd be interested in a set IF
i sorted this out (big IF).

Set of 5 x interconnects suitable for use on MCR boardsets.

Email me off-list on martin <AT> guddler.co.uk with the number of
set's you would be interested in.

Nothing set in stone, just so that if i find someone that can make
them up reasonably rather than do it myself, i know what quantity to
ask for.

Martin.

On 20/06/05, Guddler <guddler@gmail.com> wrote:
> WOW! These things ain't cheap are they??
>
> )
>
> I started off thinking those 8 way ones were quite a lot at £10 each.
> £18 each by the time you've added the 8 extra connectors needed to get
> the interconnects down to within the spec (assuming 3" would be long
> enough, but i think that's much longer than the original ones). That
> would give you 8 interconnects. So, two lots of those would do you 3x
> MCR boardsets for £36.Mmm. That's doable when you break it down like
> that. £12 a boardset.
>
> You price up the cable (£25.45 per 30m roll) + the connectors at £0.99
> each (and that's the >25 rate) and all of a sudden you can see why
> they're so much!
>
> So, to do a single MCR boardset from scratch (5 ribbon connectors)
> you'd be looking at £10 in connectors + the cable if you made it up
> yourself. Theres probably really not much in it between making it from
> scratch and butchering a pre made one.
>
> Then again. Looking, CPC have the above 8 way cables for a fiver +
> VAT. That's quite a difference. Will have to do some better maths this
> evening when i'm not meant to be working.
>
> Maybe put out some requests for quotes like Bob Roberts originally did.
>
> Martin.
>

 

[pobtastic]

RE: [ukvac] Re: MCR Interconnects
I'll have a set - you never know when having a good set will come in handy.
They are the major cause of headache usually for faulty boards, so having a
known good (new) set is a good start at determining what the fault is!

Pobster

 

[d-type]

Re: [ukvac] Re: MCR Interconnects
You might want to try Connexions Ltd., a company who specialise in cables.

http://www.cxcxcx.com

Several years ago, I used to use them for customised cables for control and monitoring projects I used to run.

For example, they used to do soldered 25-way D-connectors to your spec. for a few quid, in low quntities.

They might be competetive.

For the IDC connectors, I had a tool which cost an arm and a leg, but on site, doing them in a vice never gave any problems.

D-Type

On Mon Jun 20 13:46 , Guddler <guddler@gmail.com> sent:

>Okay, let's stick me neck out and ask who'd be interested in a set IF
>i sorted this out (big IF).
>
>Set of 5 x interconnects suitable for use on MCR boardsets.
>
>Email me off-list on martin guddler.co.uk with the number of
>set's you would be interested in.
>
>Nothing set in stone, just so that if i find someone that can make
>them up reasonably rather than do it myself, i know what quantity to
>ask for.
>
>Martin.
>
>On 20/06/05, Guddler guddler@gmail.com> wrote:
>> WOW! These things ain't cheap are they??
>>
>> )
>>
>> I started off thinking those 8 way ones were quite a lot at £10 each.
>> £18 each by the time you've added the 8 extra connectors needed to get
>> the interconnects down to within the spec (assuming 3" would be long
>> enough, but i think that's much longer than the original ones). That
>> would give you 8 interconnects. So, two lots of those would do you 3x
>> MCR boardsets for £36.Mmm. That's doable when you break it down like
>> that. £12 a boardset.
>>
>> You price up the cable (£25.45 per 30m roll) + the connectors at £0.99
>> each (and that's the >25 rate) and all of a sudden you can see why
>> they're so much!
>>
>> So, to do a single MCR boardset from scratch (5 ribbon connectors)
>> you'd be looking at £10 in connectors + the cable if you made it up
>> yourself. Theres probably really not much in it between making it from
>> scratch and butchering a pre made one.
>>
>> Then again. Looking, CPC have the above 8 way cables for a fiver +
>> VAT. That's quite a difference. Will have to do some better maths this
>> evening when i'm not meant to be working.
>>
>> Maybe put out some requests for quotes like Bob Roberts originally did.
>>
>> Martin.
>>
>
>
>
>

 

[guddler]

Re: [ukvac] Re: MCR Interconnects
Cheers Phil,

I knew you knew of a company, but i'd forgotten who it was.

I will indeed try them. If i can get someone else to do them at a
reasonable cost then all well and good.

Martin.
PS: The proper IDC crimp tool is only £7 odd +VAT in CPCs catalogue,
but i have a vice (no comments please) so guess i could save that £7
anyway.

On 20/06/05, Phillip Eaton <inbox@phillipeaton.com> wrote:
> You might want to try Connexions Ltd., a company who specialise in cables.
>
> http://www.cxcxcx.com
>
> Several years ago, I used to use them for customised cables for control and
> monitoring projects I used to run.
>
> For example, they used to do soldered 25-way D-connectors to your spec. for
> a few quid, in low quntities.
>
> They might be competetive.
>
> For the IDC connectors, I had a tool which cost an arm and a leg, but on
> site, doing them in a vice never gave any problems.
>
> D-Type
>

 

[pobtastic]

RE: [ukvac] Re: MCR Interconnects
> i have a vice (no comments please)

Bah! ) Foiled!

Pobster

 

[guddler]

Re: [ukvac] Re: MCR Interconnects
Hmm, okay, well full marks for speed of response, but "Nil Points" for
customer service.

Quote:
"
WE ONLY DO AS 60CM LONG

NAS

"

And that was IT!!

No, "Hello, thank you for your enquiry" or anything like that, and
yes, it was all caps.

If i weren't to assume better then i'd think that was a five year old replying.

Any other suggestions?

Martin.

On 20/06/05, Phillip Eaton <inbox@phillipeaton.com> wrote:
> You might want to try Connexions Ltd., a company who specialise in cables.
>
> http://www.cxcxcx.com
>
> Several years ago, I used to use them for customised cables for control and
> monitoring projects I used to run.
>
> For example, they used to do soldered 25-way D-connectors to your spec. for
> a few quid, in low quntities.
>
> They might be competetive.
>
> For the IDC connectors, I had a tool which cost an arm and a leg, but on
> site, doing them in a vice never gave any problems.
>
> D-Type