[Coco] Coco KB membrane replacement

[RWAP Software]

In that case, I should be able to get a much better price here in the UK 
- I would need an actual membrane though for them to quote it on!

Rich Mellor RWAP Software www.rwapsoftware.co.uk www.sellmyretro.com

On 2017-05-14 20:19, Scott Wendt wrote:
> The membrain is just plastic sheets with traces on them. No hard PCB 
> board.
> 
> ________________________________
> From: Coco <coco-bounces at maltedmedia.com> on behalf of RWAP Software
> <rich at rwapservices.co.uk>
> Sent: Sunday, May 14, 2017 11:35:23 AM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Coco KB membrane replacement
> 
> Is the membrane an actual hard PCB rather than a plastic membrane (with
> silver tracks)?  Sending a picture would be an idea
> 
> I have never looked into replacement PCB membranes and so far as I 
> know,
> the supplier I use does not provide these (because they specialise in
> small quantity membrane keyboards), but might know a producer.
> 
> Rich Mellor RWAP Software
> www.rwapsoftware.co.uk<http://www.rwapsoftware.co.uk>
> www.sellmyretro.com<http://www.sellmyretro.com>
> 
> On 2017-05-14 17:21, RETRO Innovations wrote:
>> On 5/14/2017 3:37 AM, RWAP Software wrote:
>>> That seems excessive - but it depends on how many membranes you would
>>> order.
>> That price is for 100 units.  NRE cost is 804.00.  Unit price is
>> 52.60.  That is actual cost, so no profit built into those prices.
>> Does not include shipping, customs, etc.
>>> The majority of the cost of setting up a new membrane production is
>>> the initial laying out and graphics.  Most membrane manufacturers 
>>> also
>>> price themselves out of the market because they are not interested in
>>> small production runs.
>> I will do the layout, as it's just a PCB, and I can send gerbers.
>>> 
>>> If I had an actual membrane I could always ask the manufacturer I use
>>> here in the UK.
>> I'd love to get an estimate from them.  I have the membrane (well,
>> lots of folks can get it.  You can easily remove from the KB
>> assembly), but I think if they just knew the dimensions and saw a pic
>> of the flattened membrane, they could estimate.
>>> The problem is knowing how many to order - realistically you are
>>> talking of a production run of at least 250 membranes to make it
>>> worthwhile from a cost basis.
>> Possibly 250, but I would assume the per unit cost would not halve,
>> and that still seems high.
>> 
>> Jim
> 
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco