[Coco] make-do ROM Paks

[Mark Marlette]

Roger,

I sill have about 300 full size cases. Bought all stock out when  
vendor was going out of business. Tried to get some half size ones  
from a former vendor but I was to late when I contacted him. He threw  
them last summer. :(

I have a template that I use when I make the SuperIDE cases at home.  
There is a fair amount of clean up required and the SuperIDE takes a  
bit of time to assemble and get out the door. Soon to have the  
SuperIDE stocked and on the shelf. Can't remember when we released it  
but I haven't to date been able to keep up with the orders. That is  
all changing.

I'll be milling the cases on a Bridgeport shortly and will require no  
touch up when completed.

Mark
Cloud-9




Quoting Roger Taylor <operator at coco3.com>:

> At 03:16 PM 9/16/2007, you wrote:
>
>> If you end up needing to get a 'mess of boards' made, why not just   
>> go with a design that uses a 28-pin socket to accept   
>> 2764/27128/27256/27512 EPROMS?  I have already created a prototype   
>> layout for such a board using the ExpressPCB software. I can send   
>> you the layout file if you like. You can view an image of the   
>> layout at:
>>
>> http://www.coco3.com/users/DarrenA/CoCoPak.gif
>
> That's what I was saying ... a mess of boards that use the 2764.  I
> looked at your design the other day for a few minutes.  Before I can
> submit something similar to a company to etch I will have to know that
> it will fit a CoCo port accurately.  Ofcourse, I'm not doubting your
> hard work.  It's probably ready to go as-is... ?  I know it can be very
> hard to insert and remove a case-less card in the CoCo if it is brand
> new or a certain thickness.  My J & M controller to this day is very
> tight fitting in an MPI or CoCo.  I tried it without the case earlier
> and I had to wiggle the board, etc.  Doing all of this with a tiny
> board worries me.  Then there's the issue of making cases
>
>
>
>> The layout has some jumper pads for configuring the A13 address   
>> line and Auto-Start. The board dimensions have been minimized to   
>> reduce cost, but it could easily be enlarged or reconfigured so   
>> that it could be mounted in a case. The ExpressPCB price quote to   
>> have 10 of these boards produced is $97.65 including shipping, 100   
>> boards would be $396.84. These would NOT have gold contacts on the   
>> connector.
>
> Auto-start is a must for my project so I wouldn't use that.  I think 10
> boards for proof that they work and to detect minute errors would be
> the best idea, then on to bigger ideas if needed.
>
> I wonder if Mark Marlette would disclose how he had those nice SuperIDE
> cases made, or where.  Then I can compare to the cost of having a sheet
> metal case done.  The J & M controller has a durable metal case that
> looks rather simple to duplicate, although I would only go half the
> length.
>
>
> -- 
> Roger Taylor
>
>
>
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