Re: MANUFACTURING SOFTWARE

krw wrote:

In article <Vwk7i.23541$YL5.14549@xxxxxxxxxxxxxxxxxxxxxxxxxx>, notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx says...

krw wrote:


In article <6sZ6i.31388$Um6.9323@xxxxxxxxxxxxxxxxxxxxxxxxxx>, notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx says...


Michael A. Terrell wrote:



Joerg wrote:



Robert Latest wrote:




Joerg wrote:





My clients pretty much all do it the same way. No kitting. They send the
whole set of parts over, boards get stuffed and the balance of parts
comes back with the stuffed boards.


I thought kitting meant just that -- sending in all parts and getting the
assembled boards back? Or did I miss a pun?


In the US it usually means kitting with the exact number of parts
needed. I don't think that is efficient. So, in a production environment
I prefer handing the folks there some authority to pull what they think
they'll need. In the case of the ultrasound systems that allowed them to
keep spares in case something broke off, or pull less than required for
the whole month so more shop space remained available. One requirement
in medical is training in stock keeping because they could also return
stuff that wasn't needed back to the stock room.

With the circuit boards we just sent the whole stock of parts. Labor
cost for kitting: Zilch. Time delay due to kitting: Zilch.



That is OK if you don't have several hundered, to a thousand
different jobs in process at one time.


In those cases we still did it but the stock remained at the contract assembler. Later the contract assembler gradually took over purchasing, further reducing our overhead costs.


I've done that with the common parts. Often they'll have them in stock waiting. I usually had to design around availability though. These I bought before the design was complete to insure I had a buildable design. Sometimes I had a better supply (could apply a firmer twist to the arm) than the contract manufacturer. I never had more than a couple of designs and variations in the mill and quantities were small.


On small qties that works ok. Somehow my consulting projects split into the extremes. Not much in the middle. Some are parts of big machines where only a few hundred a made per year. The other stuff is real mass products where every penny needs to be turned around which actually is a lot of fun during the design for me.


Well... Mine have been at two extremes too. Either a prototype or test fixture, where only a few are made, or production, where I had nothing to do with the manufacturing end (until something broke).


Except for making sure that the design is optimized for production or in MBA speak "DFM" my clients handle production. But also only until something happens. Like that late night request from China after a part went out of data*** spec range and they needed another source right now because they had a line stop situation.

--
Regards, Joerg

http://www.analogconsultants.com
.

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